Mercedes-Benz Vehicle Models Mercedes E-Class 2010-2016 Torque Specifications
Mercedes-Benz Vehicle Models Mercedes E-Class 2010-2016

Mercedes-Benz Vehicle Models Mercedes E-Class 2010-2016 Torque Specifications

Complete Mercedes-Benz Vehicle Models Mercedes E-Class 2010-2016 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

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

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

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

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

Torque Calculator

Convert between different torque units

2.1l I4 Engine

Torque specifications for 2.1L-I4 Engine

Cylinder Head and Engine Block

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
2

Cylinder Head Studs

M10 x 1.25
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.

Main Bearings and Crankshaft

1

Main Bearing Bolts

M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 1.5
Torque Specification
118 ft-lbs (160 N·m)

Valvetrain and Timing System

1

Valve Cover Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2

Timing Belt/Chain Tensioner Bolt

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)

Intake and Exhaust System

1

Intake Manifold Bolts

M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
2

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)

Fuel System

1

Fuel Injector Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2

Fuel Rail Bolts

M10 x 1.25
Torque Specification
7 ft-lbs (10 N·m)

Engine Mounting and Oil Pan

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on similar components and bolt sizes.
2

Oil Pan Bolts

M10 x 1.25
Torque Specification
8 ft-lbs (11 N·m)

3.0l Engine

Torque specifications for 3.0L Engine

Cylinder Head and Valvetrain

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
2

Rocker Arms/Shafts Bolts

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
3

Valve Cover Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)

Engine Block and Bearings

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M18 x 1.5
Torque Specification
118 ft-lbs (160 N·m)

Timing and Accessory Components

1

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2

Camshaft Sprocket Bolt

M14 x 1.5
Torque Specification
30 ft-lbs (40 N·m)

Engine Mounting and Transmission

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.
2

Engine Block to Transmission Bellhousing Bolts

M16 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.

Cooling and Oil Systems

1

Water Pump Bolts

M10 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2

Thermostat Housing Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
3

Oil Filter Housing Bolt

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)

Sensors and Accessories

1

Crankshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on general industry standards.
2

Camshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on general industry standards.
3

Engine Coolant Temperature Sensor Bolt

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on general industry standards.

3.0l V6 Engine

Torque specifications for 3.0L-V6 Engine

Cylinder Head and Valvetrain

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
2

Rocker Arms/Shafts Bolts

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
3

Valve Cover Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)

Engine Block and Bearings

1

Main Bearing Bolts

M16 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
2

Crankshaft Pulley/Harmonic Balancer Bolt

M18 x 1.5
Torque Specification
118 ft-lbs (160 N·m)

Timing and Accessory Components

1

Timing Belt/Chain Tensioner Bolt

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
2

Camshaft Sprocket Bolt

M14 x 1.5
Torque Specification
30 ft-lbs (40 N·m)

Engine Mounting and Transmission

1

Engine Mounting Bolts

M14 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.
2

Engine Block to Transmission Bellhousing Bolts

M16 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.

Cooling and Oil Systems

1

Water Pump Bolts

M10 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
2

Thermostat Housing Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
3

Oil Filter Housing Bolt

M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)

Sensors and Accessories

1

Crankshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on general industry standards.
2

Camshaft Position Sensor Bolt

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on general industry standards.
3

Engine Coolant Temperature Sensor Bolt

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on general industry standards.

4.6l Engine

Torque specifications for 4.6L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 22 ft-lbs (30 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 gasket failure.
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
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for main bearing bolts.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the connecting rod bearings are properly installed before tightening.

Timing System

1

Timing Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the tensioner is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for intake manifold bolts.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for exhaust manifold bolts.

Accessory Drives

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned before tightening.
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 before tightening.

4.6l V8 Engine

Torque specifications for 4.6L-V8 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 22 ft-lbs (30 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 gasket failure.
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
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for main bearing bolts.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the connecting rod bearings are properly installed before tightening.

Timing System

1

Timing Chain Tensioner Bolt

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the tensioner is properly seated before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
30 ft-lbs (40 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before tightening.

Intake And Exhaust

1

Intake Manifold Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for intake manifold bolts.
2

Exhaust Manifold Bolts

M8 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Follow the manufacturer's specified torque sequence for exhaust manifold bolts.

Accessory Drives

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the alternator is properly aligned before tightening.
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 before tightening.

7g Tronic Transmission

Torque specifications for 7g Tronic Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Proper torque ensures proper alignment and prevents damage to the transmission and surrounding components.

Transmission Oil System

1

Transmission Oil Pan Bolts

M10 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Proper torque prevents oil leaks and ensures the transmission is properly lubricated.
2

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Proper torque ensures a leak-free seal and allows for proper transmission fluid servicing.

7G Tronic Transmission Pan

1

7G-Tronic Transmission Pan Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque prevents oil leaks and ensures the transmission pan is properly secured. (Estimated value)

7G Tronic Transmission Filter

1

7G-Tronic Transmission Filter Bolts

M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Proper torque prevents oil leaks and ensures proper filter function. (Estimated value)

7G Tronic Transmission Solenoid Pack

1

7G-Tronic Transmission Solenoid Pack Bolts

M6 x 1
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Proper torque prevents electrical issues and ensures proper transmission function. (Estimated value)

7G Tronic Transmission Valve Body

1

7G-Tronic Transmission Valve Body Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque prevents oil leaks and ensures proper transmission function. (Estimated value)

9g Tronic Transmission

Torque specifications for 9g Tronic Transmission

Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)

Transmission Oil Pan

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)

Transmission Fluid System

1

Transmission Fluid Drain Plug

M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
2

Transmission Fluid Fill Plug

M14 x 1.5
Torque Specification
22 ft-lbs (30 N·m)

Bellhousing and Valve Body

1

Bellhousing Bolts

M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Estimated value based on industry standards.
2

Valve Body Bolts

M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on industry standards.

Solenoid Pack and Filter

1

Solenoid Pack Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.
2

Filter Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.

Body

Torque specifications for Body

Suspension and Steering

1

Strut/Shock Absorber Mounting Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
2

Control Arm Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
3

Steering Gear/Rack Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)

Brake System

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
79 ft-lbs (108 N·m)
2

Brake Caliper Mounting Bracket Bolts

M16 x 1.5
Torque Specification
148 ft-lbs (200 N·m)

Wheels and Hubs

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
96 ft-lbs (130 N·m)

Body Panels and Bumpers

1

Body Panel Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (25 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
2

Bumper Mounting Bolts

M12 x 1.5
Torque Specification
35 ft-lbs (45 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
3

Fender Mounting Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (30 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
4

Door Hinge Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (30 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.
5

Trunk Lid Hinge Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (30 N·m)
Important Notes
Estimated value. Consult the vehicle's service manual or manufacturer's recommendations for accurate torque values.

Brakes

Torque specifications for Brakes

Brake Caliper

1

Brake Caliper Bolts

M12 x 1.5
Torque Specification
79 ft-lbs (108 N·m)
Important Notes
Ensure the caliper is properly aligned before tightening.
2

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Critical for structural integrity. Do not exceed the specified torque.

Brake Disc Drum

1

Brake Disc/Drum Retaining Bolts

M8 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Ensure the disc/drum is seated properly on the hub before tightening.

Brake Hydraulics

1

Brake Hose Banjo Bolt

M10 x 1.0
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the sealing washers are in good condition and properly seated.
2

Brake Bleeder Screw

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Over-tightening can damage the screw or caliper. Use a flare nut wrench for better grip.
3

Brake Master Cylinder Mounting Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the master cylinder is properly aligned with the brake booster.

Brake Pedal Assembly

1

Brake Pedal Assembly Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the pedal operates smoothly after tightening.

Abs System

1

ABS Sensor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the sensor is properly seated and aligned with the tone ring.

Wheel Assembly

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Always use a torque wrench to ensure proper tightening. Over-tightening can damage the wheel studs.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Interface

1

Engine Block to Transmission Bellhousing Bolts

M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value, may vary depending on vehicle configuration.
2

Flywheel Bolts

M12 x 1.5
Torque Specification
67 ft-lbs (90 N·m)

Transmission Mounting and Oil Pan

1

Transmission Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2

Transmission Oil Pan Bolts

M10 x 1.5
Torque Specification
8 ft-lbs (11 N·m)

Drive Axle and Half Shaft

1

Drive Axle/Half Shaft Bolts

M14 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
2

CV Joint/Axle Nut

M18 x 1.5
Torque Specification
148 ft-lbs (200 N·m)

Differential and Transfer Case

1

Differential Drain/Fill Plug

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2

Transfer Case Drain/Fill Plug

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
3

Differential Cover Bolts

M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, may vary depending on vehicle configuration.
4

Transfer Case Mounting Bolts

M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value, may vary depending on vehicle configuration.

Propeller/Drive Shaft

1

Propeller/Drive Shaft Bolts

M14 x 1.5
Torque Specification
118 ft-lbs (160 N·m)

Axle Shaft to Hub

1

Axle Shaft to Hub Bolts

M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value, may vary depending on vehicle configuration.

Electrical

Torque specifications for Electrical

Alternator and Starter Motor

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
Torque Specification
37 ft-lbs (50 N·m)

Battery and Electrical Connectors

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Do not over-torque, as this can damage the terminals.
2

Fuel Pump Electrical Connector Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, may vary depending on manufacturer.
3

A/C Compressor Electrical Connector Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, may vary depending on manufacturer.

Ignition System

1

Ignition Coil Mounting Bolts

M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value, may vary depending on manufacturer.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold and Headers

1

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure proper torque to prevent leaks and ensure optimal performance.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure proper torque to prevent leaks and ensure optimal performance.

EGR Valve

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure proper torque to prevent leaks and ensure optimal performance.

Oxygen Sensors

1

Oxygen Sensor Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Consult the vehicle's repair manual or manufacturer's instructions for specific torque values.
2

Lambda Sensor Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Consult the vehicle's repair manual or manufacturer's instructions for specific torque values.
3

NOx Sensor Bolts

M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Consult the vehicle's repair manual or manufacturer's instructions for specific torque values.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold Headers

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure and prevent warping.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated before tightening bolts.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated before tightening bolts.

Muffler

1

Muffler to Exhaust Pipe Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated before tightening bolts.

Heat Shield

1

Exhaust Heat Shield Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical heat shield bolt sizes. Avoid over-tightening to prevent damage.

Exhaust Hanger

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on typical exhaust hanger bolt sizes. Ensure hangers are properly aligned before tightening.

Oxygen Sensor

1

Oxygen Sensor (O2 Sensor) Mounting Bolts

M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure sensor is properly seated before tightening bolts.

Exhaust Flange

1

Exhaust Flange Bolts

M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated before tightening bolts.

Fuel

Torque specifications for Fuel

Fuel Delivery System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure injectors are properly seated before tightening.
3

High-Pressure Fuel Line Fittings

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on similar high-pressure fittings. Ensure fittings are clean and free of debris.
4

Low-Pressure Fuel Line Fittings

M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar low-pressure fittings. Ensure fittings are clean and free of debris.
5

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the regulator is properly seated before tightening.

Fuel Storage System

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the fuel pump is properly aligned with the tank before tightening.
2

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the fuel tank is properly positioned before tightening.
3

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the filler neck is properly aligned with the tank and body.
4

Fuel Tank Sender Unit Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the sender unit is properly seated before tightening.

Fuel Filtration System

1

Fuel Filter Bolt/Nut

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the filter housing is properly aligned before tightening.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M10 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Ensure the compressor is properly aligned before tightening. Use a crisscross pattern for even torque distribution.

Ac Lines

1

A/C Line Fittings

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Use a torque wrench to avoid overtightening, which can damage the fittings.

Evaporator

1

Evaporator Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt applications. Ensure the housing is properly sealed to prevent air leaks.

Blower Motor

1

Blower Motor Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt applications. Ensure the motor is securely mounted to prevent vibrations.

Heater Core

1

Heater Core Inlet/Outlet Fittings

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the fittings are properly aligned to avoid cross-threading.

Condenser

1

Condenser Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the condenser is properly aligned with the radiator and refrigerant lines.

Expansion Valve

1

Expansion Valve Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical M6 bolt applications. Ensure the valve is securely mounted to prevent leaks.

Suspension

Torque specifications for Suspension

Strut And Shock Absorber

1

Strut/Shock Absorber Mounting Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Proper torque is crucial to maintain the suspension's performance and prevent damage.

Control Arms

1

Control Arm Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Proper torque is necessary to maintain the suspension's geometry and prevent wear on the control arms.
2

Upper Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards. Proper torque is necessary to maintain the suspension's performance and prevent wear on the bushings.
3

Lower Control Arm Bushing Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards. Proper torque is necessary to maintain the suspension's performance and prevent wear on the bushings.

Steering System

1

Steering Gear/Rack Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Proper torque is necessary to maintain the steering system's performance and prevent damage.
2

Ball Joint Nut

M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Proper torque is essential to prevent the ball joint from coming loose, which can cause uneven tire wear and affect the vehicle's handling.
3

Tie Rod End Nut

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Proper torque is necessary to maintain the steering system's alignment and prevent wear on the tie rod ends.

Sway Bar

1

Sway Bar Link Nut

M12 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Proper torque is essential to maintain the sway bar's performance and prevent wear on the links.
2

Stabilizer Bar Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards. Proper torque is essential to maintain the stabilizer bar's performance and prevent wear on the mounts.

Coil Spring

1

Coil Spring Mounting Bolts

M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards. Proper torque is necessary to maintain the suspension's performance and prevent damage to the coil spring.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

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

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

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 recommended torque specification for spark plugs in a 2010-2016 Mercedes e-class?

Refer to the Mercedes-Benz Technical Data Management (TDM) system for the most up-to-date torque specifications. Typically, the recommended torque range for spark plugs in this vehicle IS 22-28 Nm (16-21 ft-lb).

Q2

What type of torque wrench IS required for accurate torque application on suspension components in the e-class?

For critical suspension components such as control arms and ball joints, a properly calibrated torque wrench with an accuracy of ±4% or better IS recommended to ensure proper tightening.

Q3

IS it acceptable to use a torque multiplier to achieve extremely high torque values for jobs like axle nut tightening?

The use of torque multipliers IS generally not recommended as they can introduce additional variables and potential inaccuracies. It IS safer and more precise to utilize a torque wrench with the appropriate capacity for the required torque value.

Q4

What are the torque specifications for the cylinder head bolts on an e-class engine?

Cylinder head bolt torque specifications vary depending on engine size and model year. Consult the vehicle's specific service manual or the Mercedes-Benz TDM system for accurate information.

Q5

IS it necessary to lubricate bolts before applying torque?

Lubricating bolts IS generally not recommended for torque-critical applications as it can affect the accuracy of the torque reading. However, for some specific components, such as wheel bolts, a light application of anti-seize lubricant may be necessary to prevent corrosion.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

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

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

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. This range IS suitable for many applications on the e-class.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures
Technical Service Bulletins

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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.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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