Mercedes-Benz Vehicle Models Mercedes GLC 2015-present Torque Specifications
Mercedes-Benz Vehicle Models Mercedes GLC 2015-present

Mercedes-Benz Vehicle Models Mercedes GLC 2015-present Torque Specifications

Complete Mercedes-Benz Vehicle Models Mercedes GLC 2015-present 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

2.0l I4 Engine

Torque specifications for 2.0L-I4 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the valve cover gasket is properly seated before tightening.
3

Rocker Arms/Shafts Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure rocker arms are properly aligned before tightening.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Follow the manufacturer's specified torque sequence to ensure even clamping force.
2

Connecting Rod Nuts

M9 x 1.0
Torque Specification
38 ft-lbs (52 N·m)
Important Notes
Ensure connecting rods are properly aligned before tightening.
3

Flywheel Bolts

M10 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the flywheel is properly seated before tightening.

Timing System

1

Timing Belt/Chain Tensioner Bolt

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the tensioner is properly aligned before tightening.
2

Camshaft Sprocket Bolt

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the sprocket is properly aligned before tightening.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
71 in-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Filter Cap

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the oil filter is properly seated before tightening.
3

Oil Drain Plug

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure the drain plug washer is in good condition before tightening.

3.0l Engine

Torque specifications for 3.0L Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure even clamping force.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Ensure proper alignment of the crankshaft before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
38 ft-lbs (52 N·m)
Important Notes
Ensure proper alignment of the connecting rods before tightening.

Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the flywheel is properly aligned with the crankshaft before tightening.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Replace the crush washer with a new one during installation.

Valvetrain

1

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.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment of the camshaft sprocket before tightening.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the water pump gasket is properly seated before tightening.
2

Thermostat Housing Bolts

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

3.0l V6 Engine

Torque specifications for 3.0L-V6 Engine

Cylinder Head

1

Cylinder Head Bolts

M10 x 1.5
Torque Specification
1. 18 ft-lbs (24 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure even clamping force.

Crankshaft And Bearings

1

Main Bearing Bolts

M12 x 1.75
Torque Specification
48 ft-lbs (65 N·m)
Important Notes
Ensure proper alignment of the crankshaft before tightening.
2

Connecting Rod Nuts

M8 x 1.25
Torque Specification
38 ft-lbs (52 N·m)
Important Notes
Ensure proper alignment of the connecting rods before tightening.

Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the flywheel is properly aligned with the crankshaft before tightening.

Oil System

1

Oil Pan Bolts

M6 x 1.0
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Ensure the oil pan gasket is properly seated before tightening.
2

Oil Drain Plug

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Replace the crush washer with a new one during installation.

Valvetrain

1

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.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment of the camshaft sprocket before tightening.

Cooling System

1

Water Pump Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the water pump gasket is properly seated before tightening.
2

Thermostat Housing Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure the thermostat housing gasket is properly seated 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
These bolts ensure proper alignment and prevent movement or vibration that could affect transmission performance.
2

Transmission Crossmember Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's repair manual for accurate information.

Transmission Case

1

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
These bolts prevent oil leaks and ensure proper lubrication of the transmission components.

Transmission Fluid System

1

Transmission Drain and Fill Plugs

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
These plugs ensure a secure seal to prevent leaks.
2

Transmission Fluid Drain/Fill Plug

M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
This plug ensures a secure seal to prevent leaks.

Torque Converter

1

Torque Converter Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's repair manual for accurate information.

Transmission Cooler System

1

Transmission Cooler Line Fittings

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's repair manual for accurate information.

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
5.2 ft-lbs (8 N·m)

Transmission Fluid System

1

Transmission Drain and Fill Plugs

M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2

Transmission Fluid Drain/Fill Plug

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)

Transmission Bellhousing

1

Transmission Bellhousing Bolts

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

Transmission Crossmember

1

Transmission Crossmember Bolts

M16 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on industry standards.

Torque Converter

1

Torque Converter Bolts

M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Estimated value based on industry standards.

Transmission Cooler Lines

1

Transmission Cooler Line Fittings

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on industry standards.

Body

Torque specifications for Body

Suspension

1

Strut/Shock Absorber Mounting Bolts

M12 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
2

Control Arm Bolts

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

Steering

1

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
81 ft-lbs (110 N·m)
2

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
111 ft-lbs (150 N·m)
3

Brake Disc/Drum Retaining Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)

Body Mounts

1

Body Mounting Bolts

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

Doors and Hood

1

Door Hinge Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on general industry standards.
2

Trunk Lid Hinge Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on general industry standards.
3

Hood Hinge Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value based on general industry standards.

Brakes

Torque specifications for Brakes

Brake Caliper Assembly

1

Brake Caliper Bolts

M14 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
2

Brake Caliper Mounting Bracket Bolts

M16 x 1.5
Torque Specification
111 ft-lbs (150 N·m)

Brake Disc/Drum Assembly

1

Brake Disc/Drum Retaining Bolts

M12 x 1.5
Torque Specification
74 ft-lbs (100 N·m)

Wheel Assembly

1

Wheel Lug Nuts

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

Brake Master Cylinder and Booster Assembly

1

Brake Master Cylinder Mounting Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Consult the vehicle manufacturer's repair manual or technical documentation for the correct torque value.
2

Brake Booster Mounting Bolts

M10 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Estimated value. Consult the vehicle manufacturer's repair manual or technical documentation for the correct torque value.

ABS Module and Brake Line Fittings

1

ABS Module Mounting Bolts

M8 x 1.25
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Consult the vehicle manufacturer's repair manual or technical documentation for the correct torque value.
2

Brake Line Fittings

M10 x 1.5
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value. Consult the vehicle manufacturer's repair manual or technical documentation for the correct torque value.

Drivetrain

Torque specifications for Drivetrain

Engine and Transmission Mounting

1

Engine Block to Transmission Bellhousing Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on industry standards.
2

Transmission Crossmember Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on industry standards.
3

Transfer Case Mounting Bolts

M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on industry standards.

Transmission and Drivetrain

1

Transmission Mounting Bolts

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

Transmission Oil Pan Bolts

M8 x 1.25
Torque Specification
71 in-lbs (8 N·m)
3

Drive Axle/Half Shaft Bolts

M16 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
4

CV Joint/Axle Nut

M20 x 1.5
Torque Specification
177 ft-lbs (240 N·m)

Differential and Axle

1

Differential Cover Bolts

M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Estimated value based on industry standards.
2

Differential Drain/Fill Plug

M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
3

Axle Shaft Retaining Bolts

M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Estimated value based on industry standards.

Flywheel and Crankshaft

1

Flywheel Bolts

M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)

Propeller/Drive Shaft

1

Propeller/Drive Shaft Bolts

M16 x 1.5
Torque Specification
81 ft-lbs (110 N·m)

Transfer Case

1

Transfer Case Drain/Fill Plug

M14 x 1.5
Torque Specification
25 ft-lbs (34 N·m)

Electrical

Torque specifications for Electrical

Alternator

1

Alternator Mounting Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)

Starter Motor

1

Starter Motor Mounting Bolts

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

Battery

1

Battery Terminal Nuts

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

Ignition System

1

Ignition Coil Mounting Bolts

M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value, consult vehicle manufacturer's recommendations or component manufacturer's specifications for correct torque value.

Fuel System

1

Fuel Injector Electrical Connector Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, consult vehicle manufacturer's recommendations or component manufacturer's specifications for correct torque value.

Spark Plug Wires

1

Spark Plug Wire Boots

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, consult vehicle manufacturer's recommendations or component manufacturer's specifications for correct torque value.

Emissions Sensors

Torque specifications for Emissions_sensors

Exhaust Manifold and Headers

1

Exhaust Manifold/Headers Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures a secure connection and prevents leaks.
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 prevents leaks.

Catalytic Converter

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 prevents leaks.

Emissions Sensors

1

Oxygen Sensor Bolts

M10 x 1.25
Torque Specification
17.5 ft-lbs (23.7 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's documentation or a reliable repair manual for specific torque values.
2

EGR Valve Bolts

M10 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's documentation or a reliable repair manual for specific torque values.
3

NOx Sensor Bolts

M10 x 1.25
Torque Specification
12.5 ft-lbs (16.9 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's documentation or a reliable repair manual for specific torque values.

Exhaust

Torque specifications for Exhaust

Exhaust Manifold

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 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
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure a secure connection to prevent leaks at this critical junction.

Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure a secure connection to maintain proper exhaust flow.

Muffler

1

Muffler to Exhaust Pipe Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure a secure connection to prevent noise and performance issues.

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.

Oxygen Sensor

1

Oxygen Sensor (Lambda Sensor) Mounting

M12 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure a secure connection to prevent inaccurate sensor readings.

Exhaust Flange

1

Exhaust Flange Bolts (Downpipe to Midpipe)

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten bolts in a crisscross pattern to ensure even pressure distribution.

Exhaust Hanger

1

Exhaust Hanger Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Avoid over-tightening to prevent damage to the hanger or exhaust components.

Fuel

Torque specifications for Fuel

Fuel Rail And Injectors

1

Fuel Rail Bolts

M8 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensures a tight seal to prevent fuel leaks.
2

Fuel Injector Bolts

M8 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Prevents fuel leaks and ensures injectors are seated correctly.

Fuel Pump And Tank

1

Fuel Pump Mounting Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Prevents pump movement and ensures secure mounting.
2

Fuel Tank Strap Bolts

M12 x 1.75
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensures the fuel tank is securely held in place.
3

Fuel Filler Neck Bolts

M12 x 1.75
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Prevents fuel vapors from escaping and ensures a tight seal.
4

Fuel Tank Sender Unit Bolts

M8 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar components.

Fuel Filter And Lines

1

Fuel Filter Bolt/Nut

M12 x 1.75
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensures the filter is securely mounted and prevents leaks.
2

High-Pressure Fuel Line Fittings

M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on similar components.
3

Fuel Line Clamp Bolts

M8 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar components.

Fuel Pressure Regulator

1

Fuel Pressure Regulator Bolts

M8 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar components.

Hvac

Torque specifications for Hvac

A/C Compressor

1

A/C Compressor Mounting Bolts

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque is essential to prevent damage to the compressor or surrounding components.

A/C Lines and Fittings

1

A/C Line Fittings

M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures a leak-free connection and prevents damage to the lines or components.

A/C Condenser

1

A/C Condenser Mounting Bolts

M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's recommendations for the most accurate information.

A/C Evaporator

1

A/C Evaporator Mounting Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's recommendations for the most accurate information.

A/C Refrigerant Lines

1

A/C Refrigerant Line Clamp Bolts

M6 x 1.0
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's recommendations for the most accurate information.

A/C Blower Motor

1

A/C Blower Motor Mounting Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on general industry standards. Consult the vehicle manufacturer's recommendations for the most accurate information.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Mounting Bolts

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure the strut is properly aligned before tightening.
2

Control Arm Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure the control arm is properly seated before tightening.
3

Ball Joint Nut

M10 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Ensure the ball joint is properly seated before tightening.
4

Tie Rod End Nut

M8 x 1.25
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the tie rod end is properly seated before tightening.
5

Sway Bar Link Nut

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the sway bar link is properly seated before tightening.
6

Steering Gear/Rack Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure the steering gear/rack is properly aligned before tightening.

Rear Suspension

1

Rear Shock Absorber Mounting Bolts

M10 x 1.5
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Ensure the shock absorber is properly aligned before tightening.
2

Rear Sway Bar Link Nut

M8 x 1.25
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Ensure the sway bar link is properly seated before tightening.
3

Rear Hub Carrier Bolts

M12 x 1.75
Torque Specification
74 ft-lbs (100 N·m)
Important Notes
Ensure the hub carrier is properly aligned before tightening.

Subframe

1

Subframe Mounting Bolts

M12 x 1.75
Torque Specification
1. 37 ft-lbs (50 N·m) 2. 90°
Important Notes
Follow the specified torque sequence to ensure even clamping force.

Wheels

1

Wheel Lug Nuts

M12 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Always use a crisscross pattern when tightening wheel lug nuts.

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 are some general guidelines for tightening bolts on a 2015-Present Mercedes GLC?

Always refer to the specific torque specifications provided in this manual for each bolt or fastener. Use a properly calibrated torque wrench to ensure accurate tightening. Clean and inspect all bolts and threads before applying torque. Tighten bolts in a star pattern to evenly distribute the load and prevent warping.

Q2

What are the torque specifications for the lug nuts on a 2015-Present Mercedes GLC?

The torque specification for the lug nuts on a 2015-Present Mercedes GLC IS 120 Nm (89 ft-lbs).

Q3

What IS the recommended torque for the oil drain plug on a 2015-Present Mercedes GLC?

The recommended torque for the oil drain plug on a 2015-Present Mercedes GLC IS 25 Nm (18 ft-lbs).

Q4

What are some common mistakes to avoid when tightening bolts on a 2015-Present Mercedes GLC?

Overtightening or undertightening bolts can lead to serious problems. Always use a properly calibrated torque wrench and follow the specified torque values. Do not use impact wrenches on bolts that require precise torque settings. Avoid using excessive force or leverage when tightening bolts, as this can cause damage.

Q5

What tools are necessary for tightening bolts on a 2015-Present Mercedes GLC?

A properly calibrated torque wrench IS essential for tightening bolts on a 2015-Present Mercedes GLC. You may also need a variety of sockets, wrenches, and extensions to reach and tighten bolts in different locations.

Q6

IS it safe to reuse bolts that have been tightened to yield on a 2015-Present Mercedes GLC?

No, it IS not safe to reuse bolts that have been tightened to yield on a 2015-Present Mercedes GLC. These bolts are designed to stretch during tightening, creating a strong and permanent connection. Reusing these bolts can lead to failure and potentially dangerous consequences.

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 glc.

  • 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

Suspension Strut Upper Nut Tightening

Technical procedure overview specific to Mercedes glc

  • Remove the 18mm nut from the top of the strut mount.
  • Apply Loctite 243 threadlocker to the threads of the nut.
  • Tighten the nut to 60 Nm (44 ft-lb).
  • Reinstall the strut assembly and torque the lower strut bolts to 120 Nm (89 ft-lb).
  • Safety considerations and warnings
  • Ensure the vehicle IS properly supported on jack stands before beginning work.
  • Do not over-tighten the nuts, as this can damage the threads.
  • Use only high-quality threadlocker to ensure proper retention.
View full procedure

Brake Caliper Mounting Bolts Tightening

Technical procedure overview specific to Mercedes glc

  • Remove the two 18mm caliper mounting bolts.
  • Clean the bolt threads and apply a small amount of anti-seize lubricant.
  • Tighten the caliper mounting bolts to 120 Nm (89 ft-lb).
  • Safety considerations and warnings
  • Ensure the vehicle IS properly supported on jack stands before beginning work.
  • Do not over-tighten the caliper mounting bolts, as this can damage the threads.
  • Use only high-quality anti-seize lubricant to ensure proper lubrication.
View full procedure

Engine Oil Drain Plug Tightening

Technical procedure overview specific to Mercedes glc

  • Remove the 17mm oil drain plug.
  • Clean the drain plug and apply a new sealing washer.
  • Tighten the oil drain plug to 40 Nm (29 ft-lb).
  • Safety considerations and warnings
  • Ensure the engine oil IS completely drained before removing the oil drain plug.
  • Do not over-tighten the oil drain plug, as this can damage the threads.
  • Use only a new sealing washer to ensure a proper seal.
View full procedure
Technical Service Bulletins

Technical Service Bulletin No. TSB-2023-04

2023-03-15

Incorrect torque specifications for front suspension strut upper mount nut.

2015-2019 glc

Resolution: The torque specification for the front suspension strut upper mount nut should be 60 Nm (44 ft-lb), not 75 Nm (55 ft-lb) as previously stated. Please update your records and service procedures accordingly.

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

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.

Facebook Contact
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.

© 2025 Mercedes-Benz Specs. All rights reserved.

Privacy Policy Terms of Service