Mercedes-Benz Vehicle Models Mercedes M-Class 2011-2015
Mercedes-Benz Vehicle Models Mercedes M-Class 2011-2015 Torque Specifications
Complete Mercedes-Benz Vehicle Models Mercedes M-Class 2011-2015 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.
Updated
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Prevention:
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Prevention:
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Prevention:
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Prevention:
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Prevention:
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Range: 2-25 ft-lbs
Small fasteners, delicate components
Torque Wrench (3/8" Drive)
Range: 10-100 ft-lbs
Most common automotive fasteners
Torque Wrench (1/2" Drive)
Range: 30-250 ft-lbs
Large fasteners, wheels
Angle Gauge
Torque-to-yield (TTY) bolts
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
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Torque Calculator
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2.1l I4 Engine
Torque specifications for 2.1L-I4 Engine
2.1l I4 Engine
Torque specifications for 2.1L-I4 Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.5
1
Cylinder Head Bolts
M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m)
2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for cylinder head bolts. Failure to do so may result in head warping or leaks.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.75
1
Main Bearing Bolts
M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for main bearing bolts.
2 Connecting Rod Nuts
M8 x 1.25
2
Connecting Rod Nuts
M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure connecting rod bearings are properly installed before tightening.
Timing System
1 Timing Belt/Chain Tensioner Bolt
M8 x 1.25
1
Timing Belt/Chain Tensioner Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the timing belt/chain is properly tensioned before tightening.
2 Camshaft Sprocket Bolt
M10 x 1.5
2
Camshaft Sprocket Bolt
M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure the camshaft is properly aligned before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for intake manifold bolts.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Fuel System
1 Fuel Rail Bolts
M6 x 1.0
1
Fuel Rail Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the fuel rail is properly aligned with the injectors before tightening.
2 Fuel Injector Bolts
M6 x 1.0
2
Fuel Injector Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the injectors are properly seated before tightening.
3.0l Engine
Torque specifications for 3.0L Engine
3.0l Engine
Torque specifications for 3.0L Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.5
1
Cylinder Head Bolts
M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m)
2. 90°
Important Notes
Follow the manufacturer's specified torque sequence to avoid warping the cylinder head.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.75
1
Main Bearing Bolts
M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Ensure the bearing caps are properly aligned before tightening.
2 Connecting Rod Nuts
M8 x 1.25
2
Connecting Rod Nuts
M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.
Timing System
1 Timing Belt/Chain Tensioner Bolt
M8 x 1.25
1
Timing Belt/Chain Tensioner Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2 Camshaft Sprocket Bolt
M10 x 1.5
2
Camshaft Sprocket Bolt
M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure the sprocket is properly aligned with the camshaft before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Accessories
1 Serpentine Belt Tensioner Bolt
M10 x 1.5
1
Serpentine Belt Tensioner Bolt
M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2 Power Steering Pump Mounting Bolts
M8 x 1.25
2
Power Steering Pump Mounting Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the pump is properly aligned before tightening.
3.0l V6 Engine
Torque specifications for 3.0L-V6 Engine
3.0l V6 Engine
Torque specifications for 3.0L-V6 Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.5
1
Cylinder Head Bolts
M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m)
2. 90°
Important Notes
Follow the manufacturer's specified torque sequence to avoid warping the cylinder head.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.75
1
Main Bearing Bolts
M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Ensure the bearing caps are properly aligned before tightening.
2 Connecting Rod Nuts
M8 x 1.25
2
Connecting Rod Nuts
M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.
Timing System
1 Timing Belt/Chain Tensioner Bolt
M8 x 1.25
1
Timing Belt/Chain Tensioner Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2 Camshaft Sprocket Bolt
M10 x 1.5
2
Camshaft Sprocket Bolt
M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure the sprocket is properly aligned with the camshaft before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Ensure the intake manifold gasket is properly seated before tightening.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Accessories
1 Serpentine Belt Tensioner Bolt
M10 x 1.5
1
Serpentine Belt Tensioner Bolt
M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2 Power Steering Pump Mounting Bolts
M8 x 1.25
2
Power Steering Pump Mounting Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the pump is properly aligned before tightening.
3.5l Engine
Torque specifications for 3.5L Engine
3.5l Engine
Torque specifications for 3.5L Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.5
1
Cylinder Head Bolts
M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m)
2. 90°
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.75
1
Main Bearing Bolts
M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure proper crankshaft alignment.
2 Connecting Rod Nuts
M8 x 1.25
2
Connecting Rod Nuts
M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.
Timing System
1 Timing Chain Tensioner Bolt
M8 x 1.25
1
Timing Chain Tensioner Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2 Camshaft Sprocket Bolt
M10 x 1.5
2
Camshaft Sprocket Bolt
M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure the sprocket is properly aligned with the timing marks.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure a proper seal.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Oil System
1 Oil Pan Bolts
M6 x 1.0
1
Oil Pan Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2 Oil Drain Plug
M14 x 1.5
2
Oil Drain Plug
M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Replace the crush washer to ensure a proper seal.
3.5l V6 Engine
Torque specifications for 3.5L-V6 Engine
3.5l V6 Engine
Torque specifications for 3.5L-V6 Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.5
1
Cylinder Head Bolts
M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m)
2. 90°
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.75
1
Main Bearing Bolts
M12 x 1.75
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure proper crankshaft alignment.
2 Connecting Rod Nuts
M8 x 1.25
2
Connecting Rod Nuts
M8 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.
Timing System
1 Timing Chain Tensioner Bolt
M8 x 1.25
1
Timing Chain Tensioner Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2 Camshaft Sprocket Bolt
M10 x 1.5
2
Camshaft Sprocket Bolt
M10 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Important Notes
Ensure the sprocket is properly aligned with the timing marks.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure a proper seal.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Oil System
1 Oil Pan Bolts
M6 x 1.0
1
Oil Pan Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2 Oil Drain Plug
M14 x 1.5
2
Oil Drain Plug
M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Replace the crush washer to ensure a proper seal.
7g Tronic Transmission
Torque specifications for 7g Tronic Transmission
7g Tronic Transmission
Torque specifications for 7g Tronic Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Transmission Oil Pan
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Transmission Fluid System
1 Transmission Drain and Fill Plugs
M14 x 1.5
1
Transmission Drain and Fill Plugs
M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
2 Transmission Fluid Drain/Fill Plug
M14 x 1.5
2
Transmission Fluid Drain/Fill Plug
M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Transmission Pan Gasket
1 Transmission Pan Gasket Bolts
M10 x 1.5
1
Transmission Pan Gasket Bolts
M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on general industry standards.
Valve Body Cover
1 Valve Body Cover Bolts
M10 x 1.5
1
Valve Body Cover Bolts
M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on general industry standards.
Solenoid Pack
1 Solenoid Pack Bolts
M10 x 1.5
1
Solenoid Pack Bolts
M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on general industry standards.
Torque Converter
1 Torque Converter Bolts
M14 x 1.5
1
Torque Converter Bolts
M14 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on general industry standards.
9g Tronic Transmission
Torque specifications for 9g Tronic Transmission
9g Tronic Transmission
Torque specifications for 9g Tronic Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Transmission Oil System
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2 Transmission Drain and Fill Plugs
M12 x 1.5
2
Transmission Drain and Fill Plugs
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
3 Transmission Fluid Drain/Fill Plug
M12 x 1.5
3
Transmission Fluid Drain/Fill Plug
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Transmission Pan and Filter
1 9G-Tronic Transmission Pan Bolts
M10 x 1.5
1
9G-Tronic Transmission Pan Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards.
2 9G-Tronic Transmission Filter Bolts
M8 x 1.25
2
9G-Tronic Transmission Filter Bolts
M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Cooler System
1 9G-Tronic Transmission Cooler Line Fittings
M12 x 1.5
1
9G-Tronic Transmission Cooler Line Fittings
M12 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Solenoid Pack
1 9G-Tronic Transmission Solenoid Pack Bolts
M6 x 1.0
1
9G-Tronic Transmission Solenoid Pack Bolts
M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on industry standards.
Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension System
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
These bolts secure the strut/shock absorber to the vehicle's body.
2 Control Arm Bolts
M14 x 1.5
2
Control Arm Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
These bolts attach the control arms to the vehicle's body.
3 Ball Joint Nut
M16 x 1.5
3
Ball Joint Nut
M16 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
This nut secures the ball joint to the control arm.
4 Sway Bar Link Nut
M12 x 1.25
4
Sway Bar Link Nut
M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
This nut attaches the sway bar link to the sway bar.
Steering System
1 Tie Rod End Nut
M12 x 1.25
1
Tie Rod End Nut
M12 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
This nut attaches the tie rod end to the steering gear.
2 Steering Gear/Rack Bolts
M14 x 1.5
2
Steering Gear/Rack Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
These bolts secure the steering gear/rack to the vehicle's body.
Body Mounts
1 Body Mount Bolts
M12 x 1.25
1
Body Mount Bolts
M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. These bolts secure the vehicle's body to the frame.
Doors And Hood
1 Door Hinge Bolts
M10 x 1.25
1
Door Hinge Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. These bolts attach the doors to the vehicle's body.
2 Hood Hinge Bolts
M10 x 1.25
2
Hood Hinge Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. These bolts attach the hood to the vehicle's body.
3 Trunk Lid Hinge Bolts
M10 x 1.25
3
Trunk Lid Hinge Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. These bolts attach the trunk lid to the vehicle's body.
Bumper Mounts
1 Bumper Mounting Bolts
M12 x 1.25
1
Bumper Mounting Bolts
M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. These bolts secure the bumper to the vehicle's body.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper and Mounting
1 Brake Caliper Bolts
M12 x 1.5
1
Brake Caliper Bolts
M12 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Secure the brake caliper to the rotor or drum.
2 Brake Caliper Mounting Bracket Bolts
M14 x 1.5
2
Brake Caliper Mounting Bracket Bolts
M14 x 1.5
Torque Specification
110 ft-lbs (149 N·m)
Important Notes
Attach the brake caliper mounting bracket to the steering knuckle or suspension component.
Brake Disc/Drum and Hub
1 Brake Disc/Drum Retaining Bolts
M10 x 1.25
1
Brake Disc/Drum Retaining Bolts
M10 x 1.25
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Secure the brake disc or drum to the hub or wheel bearing.
Brake Master Cylinder and Booster
1 Brake Master Cylinder Mounting Bolts
M8 x 1.25
1
Brake Master Cylinder Mounting Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Secure the brake master cylinder to the brake booster or firewall.
2 Brake Booster Mounting Bolts
M8 x 1.25
2
Brake Booster Mounting Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Attach the brake booster to the firewall or brake master cylinder.
ABS Module and Brake Lines
1 ABS Module Mounting Bolts
M6 x 1.0
1
ABS Module Mounting Bolts
M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Secure the ABS module to the brake master cylinder or brake booster.
2 Brake Line Fittings
M10 x 1.25
2
Brake Line Fittings
M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Connect the brake lines to the brake calipers, master cylinder, or ABS module.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine
1 Flywheel Bolts
M12 x 1.5
1
Flywheel Bolts
M12 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Ensure proper torque to prevent damage to engine and transmission.
2 Main Bearing Bolts
M14 x 1.5
2
Main Bearing Bolts
M14 x 1.5
Torque Specification
60 ft-lbs (81 N·m)
Important Notes
Ensure proper torque to prevent damage to engine bearings.
3 Connecting Rod Nuts
M10 x 1.5
3
Connecting Rod Nuts
M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure proper torque to prevent damage to connecting rods and engine bearings.
4 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
4
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Torque Specification
90 ft-lbs (122 N·m)
Important Notes
Ensure proper torque to prevent damage to crankshaft and harmonic balancer.
Transmission
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper torque to prevent damage to transmission and engine mounts.
2 Torque Converter Bolts
M10 x 1.5
2
Torque Converter Bolts
M10 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value. Ensure proper torque to prevent damage to torque converter and transmission.
3 Transmission Fluid Drain/Fill Plug
M12 x 1.5
3
Transmission Fluid Drain/Fill Plug
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper torque to prevent leakage and damage to transmission.
Driveshaft and Axles
1 Drive Axle/Half Shaft Bolts
M14 x 1.5
1
Drive Axle/Half Shaft Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Ensure proper torque to prevent damage to drive axles and half shafts.
2 CV Joint/Axle Nut
M16 x 1.5
2
CV Joint/Axle Nut
M16 x 1.5
Torque Specification
170 ft-lbs (230 N·m)
Important Notes
Ensure proper torque to prevent damage to CV joint and axle shaft.
3 Propeller/Drive Shaft Bolts
M10 x 1.5
3
Propeller/Drive Shaft Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper torque to prevent damage to propeller and drive shaft.
Differential and Transfer Case
1 Differential Drain/Fill Plug
M12 x 1.5
1
Differential Drain/Fill Plug
M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure proper torque to prevent leakage and damage to differential.
2 Transfer Case Drain/Fill Plug
M12 x 1.5
2
Transfer Case Drain/Fill Plug
M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure proper torque to prevent leakage and damage to transfer case.
3 Differential Cover Bolts
M10 x 1.5
3
Differential Cover Bolts
M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value. Ensure proper torque to prevent leakage and damage to differential.
4 Transfer Case Mounting Bolts
M12 x 1.5
4
Transfer Case Mounting Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Ensure proper torque to prevent damage to transfer case and chassis.
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Battery System
1 Battery Terminal Nuts
M6 x 1.0
1
Battery Terminal Nuts
M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Ensure terminals are clean and free of corrosion before tightening.
2 Ground Strap Bolts
M6 x 1.0
2
Ground Strap Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar electrical grounding components.
Starter System
1 Starter Motor Mounting Bolts
M10 x 1.5
1
Starter Motor Mounting Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure starter motor is properly aligned with the flywheel.
Charging System
1 Alternator Mounting Bolts
M10 x 1.5
1
Alternator Mounting Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure alternator is properly aligned with the drive belt.
Ignition System
1 Ignition Coil Bolt
M6 x 1.0
1
Ignition Coil Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure ignition coil is properly seated on the cylinder head.
Ac System
1 A/C Compressor Mounting Bolts
M10 x 1.5
1
A/C Compressor Mounting Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure compressor is properly aligned with the drive belt.
2 A/C Line Fittings
M8 x 1.25
2
A/C Line Fittings
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure fittings are clean and free of debris before tightening.
Electrical Control Units
1 ECU Mounting Bolts
M6 x 1.0
1
ECU Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar electronic control units.
2 Fuse Box Mounting Bolts
M6 x 1.0
2
Fuse Box Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar electrical enclosures.
Wiring Harness
1 Wiring Harness Clamp Bolts
M6 x 1.0
1
Wiring Harness Clamp Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar wiring harness clamps.
Lighting System
1 Headlight Mounting Bolts
M6 x 1.0
1
Headlight Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar lighting components.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
1 Oxygen Sensor Bolts
M12 x 1.5
1
Oxygen Sensor Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on industry standards. Consult vehicle manufacturer's documentation or sensor manufacturer's recommendations for correct torque values.
2 Heated Oxygen Sensor (HO2S) Bolts
M12 x 1.5
2
Heated Oxygen Sensor (HO2S) Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on industry standards. Consult vehicle manufacturer's documentation or sensor manufacturer's recommendations for correct torque values.
3 NOx Sensor Bolts
M12 x 1.5
3
NOx Sensor Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on industry standards. Consult vehicle manufacturer's documentation or sensor manufacturer's recommendations for correct torque values.
4 EGR Valve Bolts
M10 x 1.25
4
EGR Valve Bolts
M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Proper torque ensures the EGR valve operates correctly and maintains a seal.
Exhaust System
1 Exhaust Manifold/Headers Bolts
M14 x 1.5
1
Exhaust Manifold/Headers Bolts
M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Proper torque ensures a leak-free seal and accurate oxygen sensor readings.
2 Catalytic Converter to Exhaust Pipe Bolts
M14 x 1.5
2
Catalytic Converter to Exhaust Pipe Bolts
M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Proper torque ensures a leak-free seal and optimal converter performance.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold Headers
1 Exhaust Manifold/Headers Bolts
M10 x 1.25
1
Exhaust Manifold/Headers Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2 Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
2
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These bolts are critical for maintaining a leak-free seal. Use a crisscross pattern for tightening.
Exhaust Pipe Connections
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.25
1
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure gaskets are properly seated before tightening.
2 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25
2
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment of the catalytic converter before tightening.
3 Muffler to Exhaust Pipe Bolts
M10 x 1.25
3
Muffler to Exhaust Pipe Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment of the muffler before tightening.
Exhaust Support Components
1 Catalytic Converter Mounting Bolts
M8 x 1.25
1
Catalytic Converter Mounting Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment before tightening.
2 Exhaust Hanger Bolts
M6 x 1.0
2
Exhaust Hanger Bolts
M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar components. Ensure proper alignment to prevent vibrations.
3 Exhaust Heat Shield Bolts
M6 x 1.0
3
Exhaust Heat Shield Bolts
M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar components. Ensure heat shield is properly aligned to protect surrounding components.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail and Injector Subsystem
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2 Fuel Injector Bolts
M8 x 1.25
2
Fuel Injector Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
3 Fuel Injector O-Ring or Gasket Bolts
M6 x 1.0
3
Fuel Injector O-Ring or Gasket Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Fuel Pump and Filter Subsystem
1 Fuel Pump Mounting Bolts
M10 x 1.5
1
Fuel Pump Mounting Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Fuel Filter Bolt/Nut
M12 x 1.75
2
Fuel Filter Bolt/Nut
M12 x 1.75
Torque Specification
22 ft-lbs (30 N·m)
Fuel Tank and Filler Neck Subsystem
1 Fuel Tank Strap Bolts
M14 x 2.0
1
Fuel Tank Strap Bolts
M14 x 2.0
Torque Specification
35 ft-lbs (47 N·m)
2 Fuel Filler Neck Bolts
M8 x 1.25
2
Fuel Filler Neck Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Fuel Pressure Regulator and Electrical Connector Subsystem
1 Fuel Pressure Regulator Mounting Bolts
M8 x 1.25
1
Fuel Pressure Regulator Mounting Bolts
M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2 Fuel Pump Electrical Connector Bolts
M6 x 1.0
2
Fuel Pump Electrical Connector Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Compressor and Condenser Mounting
1 A/C Compressor Mounting Bolts
M12 x 1.5
1
A/C Compressor Mounting Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
2 Condenser Mounting Bolts
M10 x 1.25
2
Condenser Mounting Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on industry standards.
Evaporator and Heater Core Mounting
1 Evaporator Mounting Bolts
M8 x 1.25
1
Evaporator Mounting Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards.
2 Heater Core Mounting Bolts
M6 x 1.0
2
Heater Core Mounting Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.
Blower Motor and A/C Line Fittings
1 Blower Motor Mounting Bolts
M8 x 1.25
1
Blower Motor Mounting Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards.
2 A/C Line Fittings
M10 x 1.25
2
A/C Line Fittings
M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Front Suspension
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
2 Control Arm Bolts
M12 x 1.25
2
Control Arm Bolts
M12 x 1.25
Torque Specification
85 ft-lbs (115 N·m)
3 Ball Joint Nut
M16 x 1.5
3
Ball Joint Nut
M16 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
4 Upper Control Arm Bushing Bolts
M10 x 1.25
4
Upper Control Arm Bushing Bolts
M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
5 Lower Control Arm Bolts
M14 x 1.5
5
Lower Control Arm Bolts
M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Steering System
1 Tie Rod End Nut
M12 x 1.25
1
Tie Rod End Nut
M12 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
2 Steering Knuckle Bolts
M16 x 1.5
2
Steering Knuckle Bolts
M16 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Sway Bar System
1 Sway Bar Link Nut
M10 x 1.25
1
Sway Bar Link Nut
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
2 Coil Spring Mounting Bolts
M12 x 1.25
2
Coil Spring Mounting Bolts
M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Loose Components
Symptoms:
- Rattling or vibration noises
- Visible movement in components
- Uneven panel gaps
Solutions:
- Clean threads and mounting surfaces
- Replace damaged fasteners
- Apply proper torque in sequence
- Use thread locker if specified
Stripped Fasteners
Symptoms:
- Unable to achieve proper torque
- Fastener spins freely
- Visible thread damage
Solutions:
- Use thread repair kit if appropriate
- Install thread insert (HeliCoil)
- Replace component if threaded hole is damaged
- Upgrade to higher grade fastener if recommended
Overtightened Components
Symptoms:
- Cracked or deformed parts
- Broken fasteners
- Compressed gaskets or seals
Solutions:
- Replace damaged components
- Use new fasteners
- Follow proper torque sequence
- Verify correct torque specifications
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Diagnostic Steps
Visual inspection, torque verification, thread assessment
1
Visual Inspection
Inspect the affected area for any visible signs of damage or wear
- Check for cracks or deformation
- Look for signs of excessive wear
- Verify proper fastener installation
2
Torque Verification
Verify the torque applied to the fasteners
- Check the torque wrench calibration
- Verify the torque specification
- Compare the applied torque to the specification
3
Thread Assessment
Assess the condition of the threads
- Check for signs of thread damage
- Verify the thread type and size
- Check for proper thread engagement
Prevention Guidelines
Best practices, maintenance tips, tool care
Prevention Guidelines
Best practices, maintenance tips, tool care
Best Practices
- Always follow the recommended torque specification
- Use the correct type and size of fasteners
- Verify the torque wrench calibration regularly
Maintenance Tips
- Regularly inspect the affected area for signs of wear or damage
- Replace damaged or worn-out components promptly
- Keep the work area clean and organized
Tool Care
- Regularly clean and maintain the torque wrench
- Store the torque wrench in a dry and secure location
- Verify the torque wrench calibration before each use
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the torque specifications for the lug nuts on my 2011-2015 Mercedes M-Class?
Q1
What are the torque specifications for the lug nuts on my 2011-2015 Mercedes M-Class?
108 ft-lbs (146 Nm)
Q2 What IS the recommended torque for the oil pan drain plug on my Mercedes M-Class?
Q2
What IS the recommended torque for the oil pan drain plug on my Mercedes M-Class?
25 ft-lbs (34 Nm)
Q3 How tight should I torque the spark plugs on my 2011-2015 Mercedes M-Class?
Q3
How tight should I torque the spark plugs on my 2011-2015 Mercedes M-Class?
18 ft-lbs (24 Nm)
Q4 What IS the proper torque for the brake caliper bolts on my 2011-2015 Mercedes M-Class?
Q4
What IS the proper torque for the brake caliper bolts on my 2011-2015 Mercedes M-Class?
133 ft-lbs (180 Nm)
Q5 What torque wrench should I use for my 2011-2015 Mercedes M-Class?
Q5
What torque wrench should I use for my 2011-2015 Mercedes M-Class?
Use a torque wrench that IS calibrated to the specific torque values required for your vehicle.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature can significantly impact torque values and fastener behavior
Cold Weather
Effects:
- Increased material brittleness
- Higher torque required due to thread contraction
- Reduced thread lubricant effectiveness
Recommendations:
- Allow components to warm to room temperature when possible
- Consider using winter-grade thread lubricants
- Check torque values more frequently during winter months
Hot Weather
Effects:
- Thermal expansion of components
- Decreased friction in threads
- Accelerated lubricant breakdown
Recommendations:
- Check torque when components are at normal operating temperature
- Use temperature-resistant thread lockers
- Consider re-torquing after heat cycles
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Moisture and corrosion can affect fastener integrity and torque values
High Humidity
Effects:
- Accelerated corrosion formation
- Reduced friction coefficient
- Potential thread seizing
Prevention:
- Use corrosion-resistant fasteners
- Apply appropriate anti-seize compounds
- Maintain proper protective coatings
Salt Exposure
Effects:
- Rapid corrosion development
- Thread damage
- Seized fasteners
Prevention:
- Regular underbody washing
- Use of sacrificial anodes where appropriate
- Application of protective coatings
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Spring
- Inspect for winter damage
- Clean and protect exposed fasteners
- Check torque on critical components
Summer
- Monitor heat-affected components
- Check expansion-related loosening
- Inspect cooling system mounts
Fall
- Prepare for winter conditions
- Apply corrosion protection
- Verify all fasteners are properly torqued
Winter
- More frequent inspection of critical fasteners
- Check for salt damage
- Monitor suspension component torque
Related Resources
Tools, service procedures, and technical bulletins
Recommended Tools
1/2 in. Drive Click Torque Wrench
Ratcheting type torque wrench that meets or exceeds industry standards for accuracy and reliability.
Service Procedures
Engine Mount Fastener Torque
Procedure for properly installing and tightening engine mount fasteners to factory specified torque.
- 1. Refer to the torque specification chart for the correct torque value for the engine mount fasteners.
- 2. Clean the engine mount fasteners and the threads in the engine block.
- 3. Apply a small amount of thread locker to the engine mount fasteners.
- 4. Install the engine mount fasteners and tighten them to the specified torque using a torque wrench.
- 5. Double-check the torque on all engine mount fasteners to ensure proper installation.
Brake Caliper Mounting Bolts Torque
Procedure for properly installing and tightening the brake caliper mounting bolts to factory specified torque.
- 1. Refer to the torque specification chart for the correct torque value for the brake caliper mounting bolts.
- 2. Clean the brake caliper mounting bolts and the threads in the brake caliper bracket.
- 3. Apply a small amount of anti-seize to the brake caliper mounting bolts.
- 4. Install the brake caliper mounting bolts and tighten them to the specified torque using a torque wrench.
- 5. Double-check the torque on all brake caliper mounting bolts to ensure proper installation.
Spark Plug Torque
Procedure for properly installing and tightening spark plugs to factory specified torque.
- 1. Refer to the torque specification chart for the correct torque value for the spark plugs.
- 2. Clean the spark plug threads and the threads in the cylinder head.
- 3. Apply a small amount of anti-seize to the spark plug threads.
- 4. Install the spark plugs and tighten them to the specified torque using a torque wrench.
- 5. Double-check the torque on all spark plugs to ensure proper installation.
Technical Service Bulletins
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Important information about using this content
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General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
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We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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