Mercedes-Benz Vehicle Models Mercedes CLS 2004-2010
Mercedes-Benz Vehicle Models Mercedes CLS 2004-2010 Torque Specifications
Complete Mercedes-Benz Vehicle Models Mercedes CLS 2004-2010 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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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 (25 N·m)
2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for cylinder head bolts. Failure to do so may result in improper sealing.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 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
70 ft-lbs (95 N·m)
Important Notes
Ensure proper alignment of the main bearing caps before tightening.
2 Connecting Rod Nuts
M10 x 1.25
2
Connecting Rod Nuts
M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.
Timing System
1 Camshaft Sprocket Bolt
M8 x 1.25
1
Camshaft Sprocket Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the timing marks are aligned before tightening.
2 Timing Belt/Chain Tensioner Bolt
M6 x 1.0
2
Timing Belt/Chain Tensioner Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure proper tension on the timing belt/chain before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M6 x 1.0
1
Intake Manifold Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even sealing.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Accessories
1 Alternator Mounting Bolts
M10 x 1.5
1
Alternator Mounting Bolts
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned with the drive belt before tightening.
2 A/C Compressor Mounting Bolts
M10 x 1.5
2
A/C Compressor Mounting Bolts
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the A/C compressor is properly aligned with the drive belt before tightening.
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 (25 N·m)
2. 90°
Important Notes
Follow the manufacturer's specified torque sequence for cylinder head bolts. Failure to do so may result in improper sealing.
2 Valve Cover Bolts
M6 x 1.0
2
Valve Cover Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 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
70 ft-lbs (95 N·m)
Important Notes
Ensure proper alignment of the main bearing caps before tightening.
2 Connecting Rod Nuts
M10 x 1.25
2
Connecting Rod Nuts
M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the connecting rod bearings are properly seated before tightening.
Timing System
1 Camshaft Sprocket Bolt
M8 x 1.25
1
Camshaft Sprocket Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the timing marks are aligned before tightening.
2 Timing Belt/Chain Tensioner Bolt
M6 x 1.0
2
Timing Belt/Chain Tensioner Bolt
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure proper tension on the timing belt/chain before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M6 x 1.0
1
Intake Manifold Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even sealing.
2 Exhaust Manifold Bolts
M8 x 1.25
2
Exhaust Manifold Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Accessories
1 Alternator Mounting Bolts
M10 x 1.5
1
Alternator Mounting Bolts
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned with the drive belt before tightening.
2 A/C Compressor Mounting Bolts
M10 x 1.5
2
A/C Compressor Mounting Bolts
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the A/C compressor is properly aligned with the drive belt before tightening.
5.5l Engine
Torque specifications for 5.5L Engine
5.5l Engine
Torque specifications for 5.5L Engine
Cylinder Head and Valvetrain
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2 Valve Cover Bolts
M8 x 1.25
2
Valve Cover Bolts
M8 x 1.25
Torque Specification
84 in-lbs (10 N·m)
3 Rocker Arms/Shafts Bolts
M10 x 1.5
3
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
1
Main Bearing Bolts
M14 x 2.0
Torque Specification
70 ft-lbs (95 N·m)
2 Connecting Rod Nuts
M12 x 1.5
2
Connecting Rod Nuts
M12 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
3 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
3
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Torque Specification
81 ft-lbs (110 N·m)
Timing and Accessory Components
1 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Torque Specification
84 in-lbs (10 N·m)
2 Camshaft Sprocket Bolt
M12 x 1.5
2
Camshaft Sprocket Bolt
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
3 Water Pump Bolts
M10 x 1.5
3
Water Pump Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Engine Mounting and Transmission
1 Engine Mounting Bolts
M14 x 2.0
1
Engine Mounting Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
2 Engine Block to Transmission Bellhousing Bolts
M16 x 2.0
2
Engine Block to Transmission Bellhousing Bolts
M16 x 2.0
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Intake and Exhaust Components
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
7 ft-lbs (9 N·m)
2 Exhaust Manifold/Header Bolts
M12 x 1.5
2
Exhaust Manifold/Header Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
3 Throttle Body Bolts
M8 x 1.25
3
Throttle Body Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
Fuel and Emissions Components
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
2 Fuel Injector Hold-Down Bolts
M6 x 1.0
2
Fuel Injector Hold-Down Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
3 EGR Valve Bolts
M8 x 1.25
3
EGR Valve Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
5.5l V8 Engine
Torque specifications for 5.5L-V8 Engine
5.5l V8 Engine
Torque specifications for 5.5L-V8 Engine
Cylinder Head and Valvetrain
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2 Valve Cover Bolts
M8 x 1.25
2
Valve Cover Bolts
M8 x 1.25
Torque Specification
84 in-lbs (10 N·m)
3 Rocker Arms/Shafts Bolts
M10 x 1.5
3
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
1
Main Bearing Bolts
M14 x 2.0
Torque Specification
70 ft-lbs (95 N·m)
2 Connecting Rod Nuts
M12 x 1.5
2
Connecting Rod Nuts
M12 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
3 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
3
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Torque Specification
81 ft-lbs (110 N·m)
Timing and Accessory Components
1 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Torque Specification
84 in-lbs (10 N·m)
2 Camshaft Sprocket Bolt
M12 x 1.5
2
Camshaft Sprocket Bolt
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
3 Water Pump Bolts
M10 x 1.5
3
Water Pump Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Engine Mounting and Transmission
1 Engine Mounting Bolts
M14 x 2.0
1
Engine Mounting Bolts
M14 x 2.0
Torque Specification
37 ft-lbs (50 N·m)
2 Engine Block to Transmission Bellhousing Bolts
M16 x 2.0
2
Engine Block to Transmission Bellhousing Bolts
M16 x 2.0
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
Intake and Exhaust Components
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
7 ft-lbs (9 N·m)
2 Exhaust Manifold/Header Bolts
M12 x 1.5
2
Exhaust Manifold/Header Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
3 Throttle Body Bolts
M8 x 1.25
3
Throttle Body Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
Fuel and Emissions Components
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
2 Fuel Injector Hold-Down Bolts
M6 x 1.0
2
Fuel Injector Hold-Down Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
3 EGR Valve Bolts
M8 x 1.25
3
EGR Valve Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
5g Tronic Transmission
Torque specifications for 5g Tronic Transmission
5g Tronic Transmission
Torque specifications for 5g Tronic Transmission
Mounting and Adapters
1 Transmission Mounting Bolts
M14 x 1.5
1
Transmission Mounting Bolts
M14 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secure the transmission to the engine block or transmission crossmember.
2 Transmission Bellhousing Bolts
M12 x 1.25
2
Transmission Bellhousing Bolts
M12 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Estimated value. Secures the bellhousing to the transmission, ensuring proper alignment and preventing movement that could cause damage to the transmission or surrounding components.
Oil Pan and Fluid Management
1 Transmission Oil Pan Bolts
M10 x 1
1
Transmission Oil Pan Bolts
M10 x 1
Torque Specification
71 inch-lbs (8 N·m)
Important Notes
Secure the oil pan to the transmission, preventing oil leaks and ensuring the transmission is properly lubricated.
2 Transmission Drain and Fill Plugs
M14 x 1.5
2
Transmission Drain and Fill Plugs
M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Allow for the transmission fluid to be drained and filled, and proper torque ensures they are securely sealed to prevent leaks.
3 Transmission Filter Bolts
M8 x 1
3
Transmission Filter Bolts
M8 x 1
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value. Secure the transmission filter to the transmission, ensuring proper filtration and preventing contamination of the transmission fluid.
Drive Shaft and Propeller
1 Propeller/Drive Shaft Bolts
M16 x 1.5
1
Propeller/Drive Shaft Bolts
M16 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Connect the driveshaft to the transmission, ensuring proper power transfer and preventing damage to the driveshaft or transmission.
Valve Body and Solenoid Pack
1 Transmission Valve Body Bolts
M12 x 1.25
1
Transmission Valve Body Bolts
M12 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value. Secures the valve body to the transmission, ensuring proper hydraulic pressure and preventing leaks.
2 Transmission Solenoid Pack Bolts
M8 x 1
2
Transmission Solenoid Pack Bolts
M8 x 1
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value. Secure the solenoid pack to the transmission, ensuring proper electrical connections and preventing damage to the solenoids.
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
37 ft-lbs (50 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
5.25 ft-lbs (8 N·m)
Important Notes
Estimated bolt size based on similar components.
2 Transmission Drain and Fill Plugs
M14 x 1.5
2
Transmission Drain and Fill Plugs
M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Torque Converter
1 Torque Converter Bolts
M14 x 1.5
1
Torque Converter Bolts
M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Estimated torque value based on similar components.
Planetary Gear Set
1 Planetary Gear Set Bolts
M16 x 1.5
1
Planetary Gear Set Bolts
M16 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Estimated torque value based on similar components.
Clutch Pack
1 Clutch Pack Bolts
M12 x 1.5
1
Clutch Pack Bolts
M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Estimated torque value based on similar components.
Valve Body Cover
1 Valve Body Cover Bolts
M8 x 1.25
1
Valve Body Cover Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated torque value based on similar components.
Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Secure the strut/shock absorbers to the vehicle's body.
2 Control Arm Bolts
M12 x 1.25
2
Control Arm Bolts
M12 x 1.25
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
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
60 ft-lbs (81 N·m)
Important Notes
Secure the ball joint to the control arm.
Steering
1 Tie Rod End Nut
M12 x 1.25
1
Tie Rod End Nut
M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Attach the tie rod end to the steering gear.
2 Sway Bar Link Nut
M10 x 1.25
2
Sway Bar Link Nut
M10 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secure the sway bar link to the sway bar.
3 Steering Gear/Rack Bolts
M12 x 1.25
3
Steering Gear/Rack Bolts
M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Attach the steering gear/rack to the vehicle's body.
Body and Frame
1 Body Mount Bolts
M14 x 1.5
1
Body Mount Bolts
M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Secure the vehicle's body to the frame.
2 Fender Bolts
M8 x 1.25
2
Fender Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Attach the fenders to the vehicle's body.
3 Hood Hinge Bolts
M8 x 1.25
3
Hood Hinge Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Attach the hood hinges to the vehicle's body.
4 Door Hinge Bolts
M8 x 1.25
4
Door Hinge Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Attach the door hinges to the vehicle's body.
5 Trunk Lid Hinge Bolts
M8 x 1.25
5
Trunk Lid Hinge Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Attach the trunk lid hinges to the vehicle's body.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper System
1 Brake Caliper Bolts
M12 x 1.5
1
Brake Caliper Bolts
M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Ensure the caliper is properly aligned before torquing.
2 Brake Caliper Mounting Bracket Bolts
M14 x 1.5
2
Brake Caliper Mounting Bracket Bolts
M14 x 1.5
Torque Specification
130 ft-lbs (176 N·m)
Important Notes
Ensure the bracket is properly seated on the steering knuckle or axle.
Brake Disc Drum System
1 Brake Disc/Drum Retaining Bolts
M10 x 1.25
1
Brake Disc/Drum Retaining Bolts
M10 x 1.25
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Ensure the disc/drum is properly seated on the hub before torquing.
Wheel Attachment System
1 Wheel Lug Nuts
M12 x 1.5
1
Wheel Lug Nuts
M12 x 1.5
Torque Specification
95 ft-lbs (129 N·m)
Important Notes
Always use a torque wrench to avoid over-tightening.
Brake Hydraulic System
1 Brake Hose Banjo Bolt
M10 x 1.0
1
Brake Hose Banjo Bolt
M10 x 1.0
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the sealing washers are properly seated before torquing.
2 Brake Master Cylinder Mounting Bolts
M8 x 1.25
2
Brake Master Cylinder Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the master cylinder is properly aligned before torquing.
Brake Pedal System
1 Brake Pedal Assembly Bolts
M8 x 1.25
1
Brake Pedal Assembly Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the pedal assembly is properly aligned before torquing.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Mounting
1 Engine Block to Transmission Bellhousing Bolts
M12 x 1.5
1
Engine Block to Transmission Bellhousing Bolts
M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated value based on general industry standards.
2 Transmission Mounting Bolts
M10 x 1.25
2
Transmission Mounting Bolts
M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Transmission and Driveshaft
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
71 in-lbs (8 N·m)
2 Transmission Drain and Fill Plugs
M12 x 1.5
2
Transmission Drain and Fill Plugs
M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
3 Driveshaft Center Bearing Bolts
M10 x 1.25
3
Driveshaft Center Bearing Bolts
M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.
Differential and Axles
1 Differential Drain/Fill Plug
M12 x 1.5
1
Differential Drain/Fill Plug
M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
2 Axle Shaft Retaining Bolts
M12 x 1.5
2
Axle Shaft Retaining Bolts
M12 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Estimated value based on general industry standards.
3 CV Joint/Axle Nut
M20 x 1.5
3
CV Joint/Axle Nut
M20 x 1.5
Torque Specification
180 ft-lbs (244 N·m)
Engine Internals
1 Flywheel Bolts
M12 x 1.5
1
Flywheel Bolts
M12 x 1.5
Torque Specification
52 ft-lbs (70 N·m)
2 Main Bearing Bolts
M14 x 1.5
2
Main Bearing Bolts
M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
3 Connecting Rod Nuts
M10 x 1.25
3
Connecting Rod Nuts
M10 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Alternator
1 Alternator Mounting Bolts
M12 x 1.5
1
Alternator Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Secures the alternator to the engine block, ensuring proper alignment and preventing damage to the electrical system.
2 Alternator Belt Tensioner Bolt
M10 x 1.25
2
Alternator Belt Tensioner Bolt
M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Secures the alternator belt tensioner, ensuring proper belt tension and preventing damage to the electrical system.
Starter Motor
1 Starter Motor Mounting Bolts
M12 x 1.5
1
Starter Motor Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Holds the starter motor in place, allowing for proper engagement with the flywheel and preventing damage to the electrical system.
Battery and Ignition
1 Battery Terminal Nuts
M8 x 1.25
1
Battery Terminal Nuts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Secures the battery terminals, ensuring a tight connection and preventing electrical system malfunctions.
2 Ignition Coil Bolt
M6 x 1.0
2
Ignition Coil Bolt
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Holds the ignition coil in place, allowing for proper spark generation and preventing damage to the electrical system.
Spark Plug and Fuel Injector
1 Spark Plug Wire Retainer Bolts
M6 x 1.0
1
Spark Plug Wire Retainer Bolts
M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Secures the spark plug wires to the spark plugs and ignition coil, ensuring proper electrical connection and preventing misfires.
2 Fuel Injector Electrical Connector Bolts
M5 x 0.8
2
Fuel Injector Electrical Connector Bolts
M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Secures the electrical connectors to the fuel injectors, ensuring proper fuel injection and preventing electrical system malfunctions.
Power Steering Pump
1 Power Steering Pump Electrical Connector Bolts
M5 x 0.8
1
Power Steering Pump Electrical Connector Bolts
M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value. Secures the electrical connectors to the power steering pump, ensuring proper power steering function and preventing electrical system malfunctions.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Exhaust System
1 Exhaust Manifold/Headers Bolts
M12 x 1.5
1
Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure connection to the cylinder head and prevents leaks.
2 Exhaust Manifold/Headers to Cylinder Head Bolts
M12 x 1.5
2
Exhaust Manifold/Headers to Cylinder Head Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure connection to the cylinder head and prevents leaks.
3 Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5
3
Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Secure connection to the exhaust pipe.
Emissions Sensors
1 Oxygen Sensor Bolts
M10 x 1.25
1
Oxygen Sensor Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure connection to the exhaust system.
2 Lambda Sensor Bolts
M10 x 1.25
2
Lambda Sensor Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure connection to the exhaust system.
3 NOx Sensor Bolts
M10 x 1.25
3
NOx Sensor Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure connection to the exhaust system.
4 Exhaust Gas Temperature Sensor Bolts
M10 x 1.25
4
Exhaust Gas Temperature Sensor Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Secure connection to the exhaust system.
EGR System
1 EGR Valve Bolts
M8 x 1.25
1
EGR Valve Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Secure connection to the intake manifold.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold Headers
1 Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
1
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25
2
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
1
Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Muffler
1 Muffler to Exhaust Pipe Bolts
M8 x 1.25
1
Muffler to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Exhaust Hangers
1 Exhaust Hanger Bolts
M6 x 1.0
1
Exhaust Hanger Bolts
M6 x 1.0
Torque Specification
10 ft-lbs (13 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.
Exhaust Flanges
1 Exhaust Flange Gasket Bolts
M10 x 1.5
1
Exhaust Flange Gasket Bolts
M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Exhaust Sensors
1 Exhaust Sensor Mounting Bolts
M6 x 1.0
1
Exhaust Sensor Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value based on typical M6 bolt torque specifications.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Delivery System
1 Fuel Rail Bolts
M6 x 1.0
1
Fuel Rail Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2 Fuel Injector Bolts
M6 x 1.0
2
Fuel Injector Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Proper torque ensures a secure seal and prevents fuel leaks.
3 High-Pressure Fuel Line Fittings
M8 x 1.25
3
High-Pressure Fuel Line Fittings
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on similar high-pressure fittings. Ensure fittings are clean and free of debris before installation.
4 Fuel Pressure Regulator Bolts
M6 x 1.0
4
Fuel Pressure Regulator Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Proper torque ensures consistent fuel pressure and prevents leaks.
Fuel Storage System
1 Fuel Pump Mounting Bolts
M6 x 1.0
1
Fuel Pump Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure the pump is properly seated before tightening.
2 Fuel Tank Strap Bolts
M10 x 1.5
2
Fuel Tank Strap Bolts
M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Ensure the tank is properly aligned before tightening.
3 Fuel Tank Sender Unit Bolts
M6 x 1.0
3
Fuel Tank Sender Unit Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Proper torque ensures a secure seal and accurate fuel level readings.
Fuel Filling System
1 Fuel Filler Neck Bolts
M6 x 1.0
1
Fuel Filler Neck Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure the filler neck is properly aligned before tightening.
2 Fuel Line Clamp Bolts
M6 x 1.0
2
Fuel Line Clamp Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Ensure the fuel line is properly secured to prevent movement or damage.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
A/C Compressor Mounting
1 A/C Compressor Mounting Bolts
M12 x 1.5
1
A/C Compressor Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
A/C Line Fittings
1 A/C Line Fittings
N/A
1
A/C Line Fittings
N/A
Torque Specification
N/A
Important Notes
Hand tight only. Do not overtighten.
A/C Condenser Mounting
1 A/C Condenser Mounting Bolts
M10 x 1.25
1
A/C Condenser Mounting Bolts
M10 x 1.25
Torque Specification
1. 18 ft-lbs (25 N·m)
2. 22 ft-lbs (30 N·m)
Important Notes
Estimated values based on general industry standards.
A/C Evaporator Mounting
1 A/C Evaporator Mounting Bolts
M8 x 1.25
1
A/C Evaporator Mounting Bolts
M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 14 ft-lbs (19 N·m)
Important Notes
Estimated values based on general industry standards.
A/C Compressor Clutch
1 A/C Compressor Clutch Bolt
M10 x 1.25
1
A/C Compressor Clutch Bolt
M10 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 14 ft-lbs (19 N·m)
Important Notes
Estimated values based on general industry standards.
A/C Refrigerant Line Bracket
1 A/C Refrigerant Line Bracket Bolts
M8 x 1.25
1
A/C Refrigerant Line Bracket Bolts
M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 14 ft-lbs (19 N·m)
Important Notes
Estimated values based on general industry standards.
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
80 ft-lbs (108 N·m)
Important Notes
Secure the strut/shock absorber to the vehicle's frame.
2 Control Arm Bolts
M12 x 1.25
2
Control Arm Bolts
M12 x 1.25
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Attach the control arms to the vehicle's frame.
3 Upper Control Arm Bushing Bolts
M10 x 1.25
3
Upper Control Arm Bushing Bolts
M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Secure the upper control arm bushings to the control arm.
4 Lower Control Arm Bushing Bolts
M10 x 1.25
4
Lower Control Arm Bushing Bolts
M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Secure the lower control arm bushings to the control arm.
Steering System
1 Steering Gear Mounting Bolts
M14 x 1.5
1
Steering Gear Mounting Bolts
M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value. Secure the steering gear to the vehicle's frame.
2 Tie Rod End Nut
M12 x 1.25
2
Tie Rod End Nut
M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secure the tie rod end to the steering gear.
Sway Bar System
1 Sway Bar Link Nut
M12 x 1.25
1
Sway Bar Link Nut
M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Secure the sway bar link to the sway bar.
2 Sway Bar Mounting Bolts
M14 x 1.5
2
Sway Bar Mounting Bolts
M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value. Secure the sway bar to the vehicle's frame.
Coil Spring System
1 Coil Spring Mounting Bolts
M10 x 1.25
1
Coil Spring Mounting Bolts
M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Secure the coil spring to the strut/shock absorber.
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 a 2004-2010 Mercedes cls?
Q1
What are the torque specifications for the lug nuts on a 2004-2010 Mercedes cls?
Tighten the lug nuts to 120 Nm (89 ft-lb).
Q2 What IS the recommended torque for the oil drain plug on a 2004-2010 Mercedes cls?
Q2
What IS the recommended torque for the oil drain plug on a 2004-2010 Mercedes cls?
Tighten the oil drain plug to 25 Nm (18 ft-lb).
Q3 What tools are required to measure and apply torque accurately?
Q3
What tools are required to measure and apply torque accurately?
Use a torque wrench with a range that covers the specified torque values and ensure it IS properly calibrated.
Q4 How can I ensure the accuracy of my torque wrench?
Q4
How can I ensure the accuracy of my torque wrench?
Periodically have the torque wrench calibrated by a certified technician to ensure its accuracy.
Q5 What are the consequences of over-tightening or under-tightening bolts?
Q5
What are the consequences of over-tightening or under-tightening bolts?
Over-tightening can damage the bolts, strip the threads, or cause the parts to crack. Under-tightening can lead to loose connections, leaks, or even component failure.
Q6 Where can I find additional torque specifications for my 2004-2010 Mercedes cls?
Q6
Where can I find additional torque specifications for my 2004-2010 Mercedes cls?
Refer to the Mercedes-Benz Workshop Information System (WIS) or consult the Mercedes-Benz dealership for specific torque values.
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
Mercedes-Benz Approved Torque Wrench
Specifically designed for Mercedes-Benz vehicles and engineered to provide precise torque measurements for all fasteners.
- Digital display with high resolution
- Accuracy within ±3% of indicated value
- Selectable torque units (Nm, ft-lb)
- Memory function to store frequently used torque values
Service Procedures
Engine Bolt Tightening Procedures for 2004-2010 Mercedes-Benz CLS
Comprehensive guide to the technical specifications and procedures for tightening engine bolts on Mercedes-Benz CLS models. Includes detailed instructions, safety precautions, and torque specifications.
- Identify the specific engine component and bolt.
- Refer to the Mercedes-Benz workshop manual for the recommended torque value.
- Use the Mercedes-Benz approved torque wrench to tighten the bolt to the specified torque.
- Follow any additional instructions provided in the workshop manual for specific components.
Suspension Bolt Tightening Procedures for 2004-2010 Mercedes-Benz CLS
Detailed guidance on the technical specifications and procedures for tightening suspension bolts on Mercedes-Benz CLS models. Includes specific torque values, safety precautions, and instructions.
- Locate the suspension component and bolt you need to tighten.
- Consult the Mercedes-Benz workshop manual for the specified torque value.
- Use the Mercedes-Benz approved torque wrench to apply the correct torque to the bolt.
- Follow any additional instructions provided in the service manual for specific components.
Technical Service Bulletins
Technical Service Bulletin: Updated Torque Specifications for 2004-2007 Mercedes-Benz CLS
2007-05-15Correction and update of previously published torque specifications for certain components on 2004-2007 Mercedes-Benz CLS models. Includes revised torque values and instructions.
2004-2007 CLS-Class
Resolution: Refer to the updated technical bulletin for the revised torque specifications and tightening instructions.
Technical Service Bulletin: Revised Engine Bolt Torque Specifications for 2008-2010 Mercedes-Benz CLS
2009-02-01Important update on engine bolt torque specifications for 2008-2010 Mercedes-Benz CLS models. Includes new torque values and specific instructions for affected components.
2008-2010 CLS-Class
Resolution: Follow the revised torque specifications outlined in the technical bulletin to ensure proper engine assembly.
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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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