Mercedes-Benz Vehicle Models Mercedes GLS 2016-2019
Mercedes-Benz Vehicle Models Mercedes GLS 2016-2019 Torque Specifications
Complete Mercedes-Benz Vehicle Models Mercedes GLS 2016-2019 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
Search Specifications
Search by component name, bolt size, or description
Type to search through torque specifications. Use arrow keys to navigate results. Press Enter to select a result.
Torque Calculator
Convert between different torque units
3.0l Engine
Torque specifications for 3.0L Engine
3.0l Engine
Torque specifications for 3.0L Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Cylinder Head Studs
M14 x 1.5
2
Cylinder Head Studs
M14 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on industry standards.
Main Bearings and Crankshaft
1 Main Bearing Bolts
M16 x 1.5
1
Main Bearing Bolts
M16 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Connecting Rods and Pistons
1 Connecting Rod Nuts
M12 x 1.5
1
Connecting Rod Nuts
M12 x 1.5
Torque Specification
42 ft-lbs (57 N·m)
Flywheel and Transmission
1 Flywheel Bolts
M14 x 1.5
1
Flywheel Bolts
M14 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Oil Pan and Engine Block
1 Oil Pan Bolts
M10 x 1.5
1
Oil Pan Bolts
M10 x 1.5
Torque Specification
71 ft-lbs (96 N·m)
Valve Train and Cylinder Head
1 Valve Cover Bolts
M8 x 1.25
1
Valve Cover Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2 Rocker Arms/Shafts Bolts
M10 x 1.5
2
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Timing System
1 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Camshaft Sprocket Bolt
M14 x 1.5
2
Camshaft Sprocket Bolt
M14 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
Engine Accessories
1 Throttle Body Bolts
M8 x 1.25
1
Throttle Body Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2 Intake Manifold Bolts
M10 x 1.5
2
Intake Manifold Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
3 Exhaust Manifold/Headers Bolts
M12 x 1.5
3
Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
4 EGR Valve Bolts
M8 x 1.25
4
EGR Valve Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
5 Fuel Rail Bolts
M8 x 1.25
5
Fuel Rail Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
6 Spark Plugs
M14 x 1.25
6
Spark Plugs
M14 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
7 Ignition Coil Bolt
M8 x 1.25
7
Ignition Coil Bolt
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
8 Fuel Injector Bolts
M8 x 1.25
8
Fuel Injector Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
9 Water Pump Bolts
M10 x 1.5
9
Water Pump Bolts
M10 x 1.5
Torque Specification
10 ft-lbs (14 N·m)
10 Oil Filter Housing Bolt
M12 x 1.5
10
Oil Filter Housing Bolt
M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
3.0l V6 Engine
Torque specifications for 3.0L-V6 Engine
3.0l V6 Engine
Torque specifications for 3.0L-V6 Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Cylinder Head Studs
M14 x 1.5
2
Cylinder Head Studs
M14 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on industry standards.
Main Bearings and Crankshaft
1 Main Bearing Bolts
M16 x 1.5
1
Main Bearing Bolts
M16 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Connecting Rods and Pistons
1 Connecting Rod Nuts
M12 x 1.5
1
Connecting Rod Nuts
M12 x 1.5
Torque Specification
42 ft-lbs (57 N·m)
Flywheel and Transmission
1 Flywheel Bolts
M14 x 1.5
1
Flywheel Bolts
M14 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
Oil Pan and Engine Block
1 Oil Pan Bolts
M10 x 1.5
1
Oil Pan Bolts
M10 x 1.5
Torque Specification
71 ft-lbs (96 N·m)
Valve Train and Cylinder Head
1 Valve Cover Bolts
M8 x 1.25
1
Valve Cover Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2 Rocker Arms/Shafts Bolts
M10 x 1.5
2
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Timing System
1 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Camshaft Sprocket Bolt
M14 x 1.5
2
Camshaft Sprocket Bolt
M14 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
Engine Accessories
1 Throttle Body Bolts
M8 x 1.25
1
Throttle Body Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2 Intake Manifold Bolts
M10 x 1.5
2
Intake Manifold Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
3 Exhaust Manifold/Headers Bolts
M12 x 1.5
3
Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
4 EGR Valve Bolts
M8 x 1.25
4
EGR Valve Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
5 Fuel Rail Bolts
M8 x 1.25
5
Fuel Rail Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
6 Spark Plugs
M14 x 1.25
6
Spark Plugs
M14 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
7 Ignition Coil Bolt
M8 x 1.25
7
Ignition Coil Bolt
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
8 Fuel Injector Bolts
M8 x 1.25
8
Fuel Injector Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
9 Water Pump Bolts
M10 x 1.5
9
Water Pump Bolts
M10 x 1.5
Torque Specification
10 ft-lbs (14 N·m)
10 Oil Filter Housing Bolt
M12 x 1.5
10
Oil Filter Housing Bolt
M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
4.7l Engine
Torque specifications for 4.7L Engine
4.7l Engine
Torque specifications for 4.7L Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.25
1
Cylinder Head Bolts
M10 x 1.25
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 1.5
1
Main Bearing Bolts
M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Follow the 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
42 ft-lbs (57 N·m)
Important Notes
Ensure proper alignment of connecting rods before tightening.
Timing System
1 Camshaft Sprocket Bolt
M10 x 1.25
1
Camshaft Sprocket Bolt
M10 x 1.25
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Ensure the timing marks are aligned before tightening.
2 Timing Belt/Chain Tensioner Bolt
M8 x 1.25
2
Timing Belt/Chain Tensioner Bolt
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper tension on the timing belt/chain before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Follow the specified torque sequence to ensure proper sealing.
2 Exhaust Manifold Bolts
M10 x 1.25
2
Exhaust Manifold Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Lubrication System
1 Oil Pan Bolts
M8 x 1.25
1
Oil Pan Bolts
M8 x 1.25
Torque Specification
71 ft-lbs (96 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
22 ft-lbs (30 N·m)
Important Notes
Replace the crush washer to ensure a proper seal.
4.7l V8 Engine
Torque specifications for 4.7L-V8 Engine
4.7l V8 Engine
Torque specifications for 4.7L-V8 Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.25
1
Cylinder Head Bolts
M10 x 1.25
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 1.5
1
Main Bearing Bolts
M12 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Follow the 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
42 ft-lbs (57 N·m)
Important Notes
Ensure proper alignment of connecting rods before tightening.
Timing System
1 Camshaft Sprocket Bolt
M10 x 1.25
1
Camshaft Sprocket Bolt
M10 x 1.25
Torque Specification
63 ft-lbs (85 N·m)
Important Notes
Ensure the timing marks are aligned before tightening.
2 Timing Belt/Chain Tensioner Bolt
M8 x 1.25
2
Timing Belt/Chain Tensioner Bolt
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper tension on the timing belt/chain before tightening.
Intake And Exhaust
1 Intake Manifold Bolts
M8 x 1.25
1
Intake Manifold Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Follow the specified torque sequence to ensure proper sealing.
2 Exhaust Manifold Bolts
M10 x 1.25
2
Exhaust Manifold Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the exhaust manifold gasket is properly seated before tightening.
Lubrication System
1 Oil Pan Bolts
M8 x 1.25
1
Oil Pan Bolts
M8 x 1.25
Torque Specification
71 ft-lbs (96 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
22 ft-lbs (30 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
45 ft-lbs (61 N·m)
Important Notes
Ensure the transmission is properly aligned before tightening.
2 Transmission Crossmember Bolts
M12 x 1.5
2
Transmission Crossmember Bolts
M12 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure the crossmember is properly aligned with the transmission and chassis.
Transmission Housing
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
71 ft-lbs (96 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2 Transmission Bellhousing Bolts
M12 x 1.5
2
Transmission Bellhousing Bolts
M12 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Ensure proper alignment between the transmission and engine.
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
29 ft-lbs (39 N·m)
Important Notes
Replace the sealing washer or O-ring before installation.
Driveline Components
1 Propeller/Drive Shaft Bolts
M10 x 1.25
1
Propeller/Drive Shaft Bolts
M10 x 1.25
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Ensure the drive shaft is properly aligned with the transmission output shaft.
Starter System
1 Starter Motor Mounting Bolts
M8 x 1.25
1
Starter Motor Mounting Bolts
M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the starter motor is properly aligned with the flywheel.
Torque Converter System
1 Torque Converter Bolts
M8 x 1.25
1
Torque Converter Bolts
M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the torque converter is properly seated in the transmission.
Valve Body System
1 Transmission Valve Body Bolts
M6 x 1.0
1
Transmission Valve Body Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve body is properly seated and aligned with the transmission case.
2 Transmission Solenoid Pack Bolts
M6 x 1.0
2
Transmission Solenoid Pack Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the solenoid pack is properly seated and aligned with the transmission case.
Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension System
1 Strut/Shock Absorber Mounting Bolts
M12 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
2 Control Arm Bolts
M14 x 1.5
2
Control Arm Bolts
M14 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
3 Ball Joint Nut
M16 x 1.5
3
Ball Joint Nut
M16 x 1.5
Torque Specification
66 ft-lbs (90 N·m)
4 Tie Rod End Nut
M14 x 1.5
4
Tie Rod End Nut
M14 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
5 Sway Bar Link Nut
M12 x 1.5
5
Sway Bar Link Nut
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Steering System
1 Steering Gear/Rack Bolts
M14 x 1.5
1
Steering Gear/Rack Bolts
M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Body System
1 Body Mount Bolts
M12 x 1.5
1
Body Mount Bolts
M12 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on general industry standards.
Door And Hood System
1 Door Hinge Bolts
M10 x 1.5
1
Door Hinge Bolts
M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on general industry standards.
2 Hood Hinge Bolts
M10 x 1.5
2
Hood Hinge Bolts
M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on general industry standards.
3 Trunk Lid Hinge Bolts
M10 x 1.5
3
Trunk Lid Hinge Bolts
M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on general industry standards.
Bumper System
1 Bumper Mounting Bolts
M12 x 1.5
1
Bumper Mounting Bolts
M12 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on general industry standards.
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
79 ft-lbs (107 N·m)
Important Notes
Ensure proper alignment of the caliper during installation.
2 Brake Caliper Mounting Bracket Bolts
M14 x 1.5
2
Brake Caliper Mounting Bracket Bolts
M14 x 1.5
Torque Specification
140 ft-lbs (190 N·m)
Important Notes
Critical for structural integrity. Do not over-torque.
3 Brake Hose Banjo Bolt
M10 x 1.0
3
Brake Hose Banjo Bolt
M10 x 1.0
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the sealing washers are properly seated. Estimated value based on similar components.
Brake Rotor System
1 Brake Disc/Drum Retaining Bolts
M8 x 1.25
1
Brake Disc/Drum Retaining Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the rotor or drum is seated properly before torquing.
Brake Hydraulic System
1 Brake Master Cylinder Mounting Bolts
M6 x 1.0
1
Brake Master Cylinder Mounting Bolts
M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure proper alignment with the brake booster. Estimated value based on similar components.
2 Brake Booster Mounting Bolts
M8 x 1.25
2
Brake Booster Mounting Bolts
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the booster is properly seated against the firewall. Estimated value based on similar components.
Brake Pedal System
1 Brake Pedal Pivot Bolt
M8 x 1.25
1
Brake Pedal Pivot Bolt
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the pedal moves freely after installation. Estimated value based on similar components.
Wheel System
1 Wheel Lug Nuts
M14 x 1.5
1
Wheel Lug Nuts
M14 x 1.5
Torque Specification
110 ft-lbs (150 N·m)
Important Notes
Use a star pattern for torquing lug nuts to ensure even pressure.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 1.5
1
Main Bearing Bolts
M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
2 Crankshaft Pulley Bolt
M16 x 1.5
2
Crankshaft Pulley Bolt
M16 x 1.5
Torque Specification
1. 70 ft-lbs (95 N·m)
2. 80 ft-lbs (108 N·m)
Important Notes
Estimated torque range. Consult manufacturer's specifications for exact value.
Cylinder Head and Valvetrain
1 Camshaft Sprocket Bolt
M12 x 1.5
1
Camshaft Sprocket Bolt
M12 x 1.5
Torque Specification
1. 70 ft-lbs (95 N·m)
2. 80 ft-lbs (108 N·m)
Important Notes
Estimated torque range. Consult manufacturer's specifications for exact value.
2 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
2
Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Torque Specification
1. 30 ft-lbs (41 N·m)
2. 40 ft-lbs (54 N·m)
Important Notes
Estimated torque range. Consult manufacturer's specifications for exact value.
Transmission and Drivetrain
1 Transmission Mounting Bolts
M14 x 1.5
1
Transmission Mounting Bolts
M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
2 Transmission Oil Pan Bolts
M12 x 1.5
2
Transmission Oil Pan Bolts
M12 x 1.5
Torque Specification
71 ft-lbs (96 N·m)
3 Drive Axle/Half Shaft Bolts
M16 x 1.5
3
Drive Axle/Half Shaft Bolts
M16 x 1.5
Torque Specification
77 ft-lbs (105 N·m)
4 CV Joint/Axle Nut
M20 x 1.5
4
CV Joint/Axle Nut
M20 x 1.5
Torque Specification
221 ft-lbs (300 N·m)
5 Propeller/Drive Shaft Bolts
M14 x 1.5
5
Propeller/Drive Shaft Bolts
M14 x 1.5
Torque Specification
48 ft-lbs (65 N·m)
Differential and Transfer Case
1 Differential Drain/Fill Plug
M12 x 1.5
1
Differential Drain/Fill Plug
M12 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
2 Transfer Case Drain/Fill Plug
M10 x 1.5
2
Transfer Case Drain/Fill Plug
M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
3 Differential Cover Bolts
M12 x 1.5
3
Differential Cover Bolts
M12 x 1.5
Torque Specification
1. 30 ft-lbs (41 N·m)
2. 40 ft-lbs (54 N·m)
Important Notes
Estimated torque range. Consult manufacturer's specifications for exact value.
4 Transfer Case Mounting Bolts
M14 x 1.5
4
Transfer Case Mounting Bolts
M14 x 1.5
Torque Specification
1. 40 ft-lbs (54 N·m)
2. 50 ft-lbs (68 N·m)
Important Notes
Estimated torque range. Consult manufacturer's specifications for exact value.
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Alternator And Starter Motor
1 Alternator Mounting Bolts
M12 x 1.5
1
Alternator Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2 Starter Motor Mounting Bolts
M12 x 1.5
2
Starter Motor Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Battery Terminals
1 Battery Terminal Nuts
M8 x 1.25
1
Battery Terminal Nuts
M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
Ignition Coil
1 Ignition Coil Mounting Bolts
M10 x 1.5
1
Ignition Coil Mounting Bolts
M10 x 1.5
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 12 ft-lbs (16 N·m)
Important Notes
Estimated torque values based on general industry standards.
Electrical Connectors
1 Fuel Pump Electrical Connector Bolts
M6 x 1.0
1
Fuel Pump Electrical Connector Bolts
M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m)
2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry standards.
2 A/C Compressor Electrical Connector Bolts
M6 x 1.0
2
A/C Compressor Electrical Connector Bolts
M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m)
2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry standards.
3 Power Steering Pump Electrical Connector Bolts
M6 x 1.0
3
Power Steering Pump Electrical Connector Bolts
M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m)
2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry standards.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
EGR System
1 EGR Valve Bolts
M10 x 1.5
1
EGR Valve Bolts
M10 x 1.5
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Proper torque ensures a leak-free connection and optimal performance.
Exhaust Manifold And Headers
1 Exhaust Manifold/Headers Bolts
M14 x 1.25
1
Exhaust Manifold/Headers Bolts
M14 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Proper torque ensures a secure connection and accurate sensor readings.
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 (24 N·m)
Important Notes
Proper torque ensures a secure connection and accurate sensor readings.
Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5
1
Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures a secure connection and optimal performance.
Emissions Sensors
1 Oxygen Sensor Bolts
M10 x 1.5
1
Oxygen Sensor Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards and manufacturer recommendations.
2 NOx Sensor Bolts
M10 x 1.5
2
NOx Sensor Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on industry standards and manufacturer recommendations.
Fuel Injectors
1 Fuel Injector Bolts (specific to emissions-related fuel injectors)
M8 x 1.25
1
Fuel Injector Bolts (specific to emissions-related fuel injectors)
M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards and manufacturer recommendations.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold Headers
1 Exhaust Manifold/Headers to Engine Block Bolts
M10 x 1.5
1
Exhaust Manifold/Headers to Engine Block Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment of the manifold/headers before tightening. Torque sequence is critical to prevent warping.
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
Ensure proper alignment of the manifold/headers before tightening. Torque sequence is critical to prevent warping.
Exhaust Pipe Connections
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5
1
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment of the exhaust pipe before tightening.
2 Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
2
Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the catalytic converter before tightening.
3 Muffler to Exhaust Pipe Bolts
M8 x 1.25
3
Muffler to Exhaust Pipe Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the muffler before tightening.
Exhaust Support Components
1 Exhaust Hanger Bolts
M8 x 1.25
1
Exhaust Hanger Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure proper alignment of the exhaust system before tightening.
2 Exhaust Flange Gasket Bolts
M10 x 1.5
2
Exhaust Flange Gasket Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure proper alignment of the flange and gasket before tightening.
3 O2 Sensor Mounting Bolts
M6 x 1.0
3
O2 Sensor Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure proper alignment of the O2 sensor before tightening.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Rail and Injector System
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 Rail Bolts
M8 x 1.25
3
Fuel Injector Rail Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Fuel Pump and Tank System
1 Fuel Pump Mounting Bolts
M10 x 1.5
1
Fuel Pump Mounting Bolts
M10 x 1.5
Torque Specification
7 ft-lbs (10 N·m)
2 Fuel Tank Strap Bolts
M12 x 1.75
2
Fuel Tank Strap Bolts
M12 x 1.75
Torque Specification
22 ft-lbs (30 N·m)
3 Fuel Tank Drain Plug
M14 x 2.0
3
Fuel Tank Drain Plug
M14 x 2.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Actual torque may vary depending on the specific application and manufacturer's recommendations.
Fuel Filter and Filler System
1 Fuel Filter Bolt/Nut
M12 x 1.75
1
Fuel Filter Bolt/Nut
M12 x 1.75
Torque Specification
22 ft-lbs (30 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 System
1 Fuel Pressure Regulator Mounting Bolts
M10 x 1.5
1
Fuel Pressure Regulator Mounting Bolts
M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Actual torque may vary depending on the specific application and manufacturer's recommendations.
Fuel Line System
1 Fuel Line Fittings
M10 x 1.5
1
Fuel Line Fittings
M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Actual torque may vary depending on the specific application and manufacturer's recommendations.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
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)
Important Notes
Proper torque ensures the compressor is securely fastened, preventing damage or vibration that could affect system performance.
Condenser Mounting
1 A/C Condenser Mounting Bolts
M10 x 1.25
1
A/C Condenser Mounting Bolts
M10 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated torque value based on general industry standards. Proper torque ensures the condenser is securely fastened, preventing damage or vibration that could affect system performance.
Evaporator Mounting
1 A/C Evaporator Mounting Bolts
M8 x 1.25
1
A/C Evaporator Mounting Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on general industry standards. Proper torque ensures the evaporator is securely fastened, preventing damage or vibration that could affect system performance.
Refrigerant Line Brackets
1 A/C Refrigerant Line Bracket Bolts
M8 x 1.25
1
A/C Refrigerant Line Bracket Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on general industry standards. Proper torque ensures the lines are securely fastened, preventing damage or vibration that could affect system performance.
Heater Core Mounting
1 Heater Core Mounting Bolts
M8 x 1.25
1
Heater Core Mounting Bolts
M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated torque value based on general industry standards. Proper torque ensures the heater core is securely fastened, preventing damage or vibration that could affect system performance.
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 tighten only. Over-tightening can damage the lines or fittings.
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
22 ft-lbs (30 N·m)
2 Control Arm Bolts
M16 x 1.5
2
Control Arm Bolts
M16 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
3 Ball Joint Nut
M18 x 1.5
3
Ball Joint Nut
M18 x 1.5
Torque Specification
66 ft-lbs (90 N·m)
4 Tie Rod End Nut
M16 x 1.5
4
Tie Rod End Nut
M16 x 1.5
Torque Specification
63 ft-lbs (85 N·m)
5 Upper Control Arm Bushing Bolts
M12 x 1.25
5
Upper Control Arm Bushing Bolts
M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on general industry standards.
6 Lower Control Arm Bushing Bolts
M14 x 1.5
6
Lower Control Arm Bushing Bolts
M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on general industry standards.
7 Steering Knuckle Bolts
M18 x 1.5
7
Steering Knuckle Bolts
M18 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Estimated value based on general industry standards.
Rear Suspension
1 Coil Spring Mounting Bolts
M14 x 1.5
1
Coil Spring Mounting Bolts
M14 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value based on general industry standards.
2 Stabilizer Bar Mounting Bolts
M12 x 1.25
2
Stabilizer Bar Mounting Bolts
M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on general industry standards.
3 Sway Bar Link Nut
M16 x 1.5
3
Sway Bar Link Nut
M16 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
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 IS the correct torque specification for the cylinder head bolts on a 2018 Mercedes gls?
Q1
What IS the correct torque specification for the cylinder head bolts on a 2018 Mercedes gls?
The cylinder head bolts on a 2018 Mercedes gls should be torqued to 80 ft-lbs (108 Nm) in three stages: 30 ft-lbs, then 50 ft-lbs, and finally 80 ft-lbs.
Q2 What type of torque wrench IS recommended for use on a 2019 Mercedes gls?
Q2
What type of torque wrench IS recommended for use on a 2019 Mercedes gls?
A high-quality click-type torque wrench IS recommended for use on a 2019 Mercedes gls. This type of torque wrench will provide accurate and consistent torque readings.
Q3 What are the torque specifications for the lug nuts on a 2016 Mercedes gls?
Q3
What are the torque specifications for the lug nuts on a 2016 Mercedes gls?
The lug nuts on a 2016 Mercedes gls should be torqued to 140 ft-lbs (190 Nm). Always refer to the vehicle's owner's manual for specific torque specifications.
Q4 What are the consequences of over-tightening a bolt?
Q4
What are the consequences of over-tightening a bolt?
Over-tightening a bolt can cause the bolt to stretch or break, which can lead to serious safety hazards. It can also damage the threads in the bolt hole, making it difficult to remove the bolt in the future.
Q5 What IS the recommended torque specification for replacing the spark plugs on a 2017 Mercedes gls?
Q5
What IS the recommended torque specification for replacing the spark plugs on a 2017 Mercedes gls?
The spark plugs on a 2017 Mercedes gls should be torqued to 22 ft-lbs (30 Nm). Refer to the vehicle's service manual for specific torque specifications for your particular engine type.
Q6 IS it necessary to use a torque wrench when tightening bolts on a 2019 Mercedes gls?
Q6
IS it necessary to use a torque wrench when tightening bolts on a 2019 Mercedes gls?
Yes, it IS always best to use a torque wrench when tightening bolts on any vehicle, including a 2019 Mercedes gls. A torque wrench ensures that the bolts are tightened to the correct specification, which IS essential for safety and performance.
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
Digital Torque Wrench (10-100 Nm)
Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Technical Service Bulletins
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
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.
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
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.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
ASE
15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.