Mercedes-Benz Vehicle Models Mercedes GLB 2019-present
Mercedes-Benz Vehicle Models Mercedes GLB 2019-present Torque Specifications
Complete Mercedes-Benz Vehicle Models Mercedes GLB 2019-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
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Prevention:
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Prevention:
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Prevention:
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Prevention:
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Prevention:
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Range: 2-25 ft-lbs
Small fasteners, delicate components
Torque Wrench (3/8" Drive)
Range: 10-100 ft-lbs
Most common automotive fasteners
Torque Wrench (1/2" Drive)
Range: 30-250 ft-lbs
Large fasteners, wheels
Angle Gauge
Torque-to-yield (TTY) bolts
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
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Torque Calculator
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2.0l I4 Engine
Torque specifications for 2.0L-I4 Engine
2.0l I4 Engine
Torque specifications for 2.0L-I4 Engine
Cylinder Head and Block
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Cylinder Block Plug Bolts
M10 x 1.25
2
Cylinder Block Plug Bolts
M10 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.
Main Bearings 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/Harmonic Balancer Bolt
M16 x 1.5
2
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Connecting Rods and Pistons
1 Connecting Rod Nuts
M12 x 1.25
1
Connecting Rod Nuts
M12 x 1.25
Torque Specification
48 ft-lbs (65 N·m)
2 Piston Ring Compressor Bolts
M8 x 1.25
2
Piston Ring Compressor Bolts
M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value based on industry standards.
Valvetrain and Timing System
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 Timing Belt/Chain Tensioner Bolt
M10 x 1.25
2
Timing Belt/Chain Tensioner Bolt
M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
3 Timing Belt/Chain Guide Rail Bolts
M8 x 1.25
3
Timing Belt/Chain Guide Rail Bolts
M8 x 1.25
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Estimated value based on industry standards.
Engine Mounts and Accessories
1 Engine Mounting Bolts
M12 x 1.5
1
Engine Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on industry standards.
2 Oil Pan Bolts
M10 x 1.25
2
Oil Pan Bolts
M10 x 1.25
Torque Specification
71 in-lbs (8 N·m)
Intake and Exhaust System
1 Intake Manifold Bolts
M10 x 1.25
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
2
Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Ignition and Fuel System
1 Spark Plugs
M14 x 1.25
1
Spark Plugs
M14 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
2 Throttle Body Bolts
M8 x 1.25
2
Throttle Body Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
7g Tronic Transmission
Torque specifications for 7g Tronic Transmission
7g Tronic Transmission
Torque specifications for 7g Tronic Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Transmission Oil Pan
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
71 in-lbs (8 N·m)
Important Notes
Note: The torque value is in inch-pounds (in-lbs) due to the smaller bolt size.
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 (40 N·m)
2 Transmission Fluid Drain/Fill Plug
M14 x 1.5
2
Transmission Fluid Drain/Fill Plug
M14 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Transmission Bellhousing
1 Transmission Bellhousing Bolts
M12 x 1.5
1
Transmission Bellhousing Bolts
M12 x 1.5
Torque Specification
44 ft-lbs (60 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Valve Body
1 Transmission Valve Body Bolts
M10 x 1.25
1
Transmission Valve Body Bolts
M10 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Solenoid Pack
1 Transmission Solenoid Pack Bolts
M6 x 1.0
1
Transmission Solenoid Pack Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on industry standards.
Transmission Filter
1 Transmission Filter Bolts
M6 x 1.0
1
Transmission Filter Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on industry standards.
Body
Torque specifications for Body
Body
Torque specifications for Body
Suspension and Steering
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
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
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
3
Steering Gear/Rack Bolts
M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
4 Ball Joint Nut
M16 x 1.5
4
Ball Joint Nut
M16 x 1.5
Torque Specification
59 ft-lbs (80 N·m)
5 Tie Rod End Nut
M12 x 1.25
5
Tie Rod End Nut
M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
6 Sway Bar Link Nut
M12 x 1.25
6
Sway Bar Link Nut
M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Body and Frame
1 Body Mount Bolts
M12 x 1.25
1
Body Mount Bolts
M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.
2 Fender Bolts
M8 x 1.25
2
Fender Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on general industry standards.
3 Hood Hinge Bolts
M8 x 1.25
3
Hood Hinge Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on general industry standards.
4 Door Hinge Bolts
M8 x 1.25
4
Door Hinge Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on general industry standards.
5 Trunk Lid Hinge Bolts
M8 x 1.25
5
Trunk Lid Hinge Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on general industry standards.
6 Bumper Mounting Bolts
M12 x 1.25
6
Bumper Mounting Bolts
M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Estimated value based on general industry standards.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper
1 Brake Caliper Bolts
M12 x 1.5
1
Brake Caliper Bolts
M12 x 1.5
Torque Specification
81 ft-lbs (110 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
136 ft-lbs (185 N·m)
Important Notes
Critical for maintaining structural integrity of the braking system.
Brake Rotor
1 Brake Disc/Drum Retaining Bolts
M12 x 1.5
1
Brake Disc/Drum Retaining Bolts
M12 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Important Notes
Ensure the rotor is seated properly on the hub before tightening.
Brake Hydraulics
1 Brake Hose Banjo Bolt
M10 x 1.0
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 Master Cylinder Mounting Bolts
M8 x 1.25
2
Brake Master Cylinder Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the master cylinder is properly aligned with the brake booster.
Brake Pedal
1 Brake Pedal Assembly Bolts
M8 x 1.25
1
Brake Pedal Assembly Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the pedal operates smoothly after installation.
Abs System
1 ABS Sensor Mounting Bolts
M6 x 1.0
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
1
Wheel Lug Nuts
M12 x 1.5
Torque Specification
96 ft-lbs (130 N·m)
Important Notes
Use a star pattern to ensure even tightening and prevent rotor warping.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine and Transmission Mounting
1 Engine Block to Transmission Bellhousing Bolts
M14 x 1.5
1
Engine Block to Transmission Bellhousing Bolts
M14 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, may vary depending on the specific vehicle and component manufacturer.
2 Transmission Crossmember Bolts
M12 x 1.25
2
Transmission Crossmember Bolts
M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, may vary depending on the specific vehicle and component manufacturer.
3 Transmission Mounting Bolts
M10 x 1.25
3
Transmission Mounting Bolts
M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Flywheel and Crankshaft
1 Flywheel Bolts
M12 x 1.25
1
Flywheel Bolts
M12 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
2 Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5
2
Crankshaft Pulley/Harmonic Balancer Bolt
M14 x 1.5
Torque Specification
81 ft-lbs (110 N·m)
Main Bearings and Connecting Rods
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 Connecting Rod Nuts
M10 x 1.25
2
Connecting Rod Nuts
M10 x 1.25
Torque Specification
48 ft-lbs (65 N·m)
Transmission and Axle
1 Transmission Oil Pan Bolts
M8 x 1.25
1
Transmission Oil Pan Bolts
M8 x 1.25
Torque Specification
5 ft-lbs (8 N·m)
Important Notes
Converted from 71 in-lbs
2 Drive Axle/Half Shaft Bolts
M14 x 1.5
2
Drive Axle/Half Shaft Bolts
M14 x 1.5
Torque Specification
97 ft-lbs (132 N·m)
3 CV Joint/Axle Nut
M18 x 1.5
3
CV Joint/Axle Nut
M18 x 1.5
Torque Specification
177 ft-lbs (240 N·m)
Differential and Propeller Shaft
1 Differential Cover Bolts
M10 x 1.25
1
Differential Cover Bolts
M10 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, may vary depending on the specific vehicle and component manufacturer.
2 Differential Drain/Fill Plug
M12 x 1.25
2
Differential Drain/Fill Plug
M12 x 1.25
Torque Specification
44 ft-lbs (60 N·m)
3 Propeller/Drive Shaft Bolts
M12 x 1.25
3
Propeller/Drive Shaft Bolts
M12 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Alternator
1 Alternator Mounting Bolts
M12 x 1.5
1
Alternator Mounting Bolts
M12 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Starter Motor
1 Starter Motor Mounting Bolts
M14 x 1.5
1
Starter Motor Mounting Bolts
M14 x 1.5
Torque Specification
32 ft-lbs (43 N·m)
Battery
1 Battery Terminal Nuts
M8 x 1.25
1
Battery Terminal Nuts
M8 x 1.25
Torque Specification
53 in-lbs (6 N·m)
Ignition Coil
1 Ignition Coil Bracket Bolts
M10 x 1.5
1
Ignition Coil Bracket Bolts
M10 x 1.5
Torque Specification
11 ft-lbs (15 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for specific torque values.
Fuel Pump
1 Fuel Pump Electrical Connector Bolts
M6 x 1.0
1
Fuel Pump Electrical Connector Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for specific torque values.
A/C Compressor
1 A/C Compressor Electrical Connector Bolts
M6 x 1.0
1
A/C Compressor Electrical Connector Bolts
M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for specific torque values.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Exhaust Manifold Headers
1 Exhaust Manifold/Headers Bolts
M10 x 1.25
1
Exhaust Manifold/Headers Bolts
M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to avoid warping the manifold.
Egr Valve
1 EGR Valve Bolts
M8 x 1.25
1
EGR Valve Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure the valve is properly seated before tightening.
Exhaust Pipe Connections
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.25
1
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure the gasket is properly seated before tightening.
2 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25
2
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure the gasket is properly seated before tightening.
Emissions Sensors
1 Oxygen Sensor Mounting Bolts
M8 x 1.25
1
Oxygen Sensor Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Estimated value based on typical oxygen sensor mounting bolts.
2 Exhaust Temperature Sensor Bolts
M6 x 1.0
2
Exhaust Temperature Sensor Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical temperature sensor mounting bolts.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold Headers
1 Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
1
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Ensure bolts are tightened in a crisscross pattern to evenly distribute pressure.
2 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5
2
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
1
Catalytic Converter to Exhaust Pipe Bolts
M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Muffler
1 Muffler to Exhaust Pipe Bolts
M10 x 1.5
1
Muffler to Exhaust Pipe Bolts
M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated before tightening.
Exhaust Hangers
1 Exhaust Hanger Bolts
M8 x 1.25
1
Exhaust Hanger Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure hangers are properly aligned before tightening.
Oxygen Sensor
1 Oxygen Sensor Bolts
M12 x 1.5
1
Oxygen Sensor Bolts
M12 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the sensor is properly seated before tightening.
Heat Shield
1 Exhaust Heat Shield Bolts
M6 x 1.0
1
Exhaust Heat Shield Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Avoid over-tightening to prevent damage to the heat shield.
Exhaust Flange
1 Exhaust Flange Bolts
M10 x 1.5
1
Exhaust Flange Bolts
M10 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Ensure gasket is properly seated 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)
Important Notes
Proper torque is essential to prevent fuel leaks and maintain engine performance.
2 Fuel Injector Bolts
M8 x 1.25
2
Fuel Injector Bolts
M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Proper torque is necessary to prevent fuel leaks and maintain engine performance.
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)
Important Notes
Proper torque is essential to prevent fuel leaks and maintain engine performance.
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
89 in-lbs (10 N·m)
Important Notes
Proper torque is necessary to prevent fuel leaks and maintain engine performance.
2 Fuel Tank Strap Bolts
M12 x 1.75
2
Fuel Tank Strap Bolts
M12 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque is essential to prevent fuel tank damage and maintain safety.
3 Fuel Filler Neck Bolts
M12 x 1.75
3
Fuel Filler Neck Bolts
M12 x 1.75
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Proper torque is necessary to maintain engine performance and safety.
Fuel Filter and Pressure Regulator System
1 Fuel Filter Bolt/Nut
M10 x 1.5
1
Fuel Filter Bolt/Nut
M10 x 1.5
Torque Specification
14 ft-lbs (19 N·m)
Important Notes
Proper torque is essential to maintain engine performance and prevent fuel system damage.
2 Fuel Pressure Regulator Mounting Bolts
M8 x 1.25
2
Fuel Pressure Regulator Mounting Bolts
M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 15 ft-lbs (20 N·m)
Important Notes
Estimated torque values based on general industry standards. Consult the vehicle's service manual or manufacturer's recommendations for specific torque values.
Fuel Line and Fitting System
1 Fuel Line Fittings
M8 x 1.25
1
Fuel Line Fittings
M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 15 ft-lbs (20 N·m)
Important Notes
Estimated torque values based on general industry standards. Consult the vehicle's service manual or manufacturer's recommendations for specific torque values.
Fuel Tank Vent Valve System
1 Fuel Tank Vent Valve Bolts
M8 x 1.25
1
Fuel Tank Vent Valve Bolts
M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 15 ft-lbs (20 N·m)
Important Notes
Estimated torque values based on general industry standards. Consult the vehicle's service manual or manufacturer's recommendations for specific torque values.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
Ac Compressor
1 A/C Compressor Mounting Bolts
M10 x 1.5
1
A/C Compressor Mounting Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the compressor is properly aligned before tightening. Torque values are critical to prevent vibrations and refrigerant leaks.
Ac Lines
1 A/C Line Fittings
M10 x 1.5
1
A/C Line Fittings
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Use a torque wrench to ensure precise tightening. Over-tightening can damage the fittings, while under-tightening can cause leaks.
Evaporator
1 Evaporator Housing Bolts
M6 x 1.0
1
Evaporator Housing Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems. Ensure the housing is sealed tightly to prevent air leaks.
Blower Motor
1 Blower Motor Mounting Bolts
M6 x 1.0
1
Blower Motor Mounting Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems. Proper torque prevents vibrations and noise.
Heater Core
1 Heater Core Inlet/Outlet Fittings
M8 x 1.25
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 before tightening. Over-tightening can damage the heater core.
Condenser
1 Condenser Mounting Bolts
M10 x 1.5
1
Condenser Mounting Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (25 N·m)
Important Notes
Ensure the condenser is properly aligned before tightening. Torque values are critical to prevent damage to the refrigerant lines.
Control Valve
1 HVAC Control Valve Bolts
M6 x 1.0
1
HVAC Control Valve Bolts
M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar M6 bolts in HVAC systems. Proper torque ensures the valve operates correctly.
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
74 ft-lbs (100 N·m)
2 Control Arm Bolts
M14 x 1.5
2
Control Arm Bolts
M14 x 1.5
Torque Specification
74 ft-lbs (100 N·m)
3 Upper Control Arm Bushing Bolts
M10 x 1.25
3
Upper Control Arm Bushing Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Consult manufacturer's specifications for accurate information.
4 Lower Control Arm Bushing Bolts
M10 x 1.25
4
Lower Control Arm Bushing Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value. Consult manufacturer's specifications for accurate information.
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)
2 Tie Rod End Nut
M12 x 1.25
2
Tie Rod End Nut
M12 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Stabilizer Bar
1 Stabilizer Bar Mounting Bolts
M12 x 1.25
1
Stabilizer Bar Mounting Bolts
M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Consult manufacturer's specifications for accurate information.
2 Sway Bar Link Nut
M10 x 1.25
2
Sway Bar Link Nut
M10 x 1.25
Torque Specification
37 ft-lbs (50 N·m)
Coil Spring
1 Coil Spring Mounting Bolts
M12 x 1.25
1
Coil Spring Mounting Bolts
M12 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Consult manufacturer's specifications for accurate information.
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 lug bolts on a 2019-Present Mercedes GLB?
Q1
What IS the correct torque specification for the lug bolts on a 2019-Present Mercedes GLB?
118 ft-lb (160 Nm) ± 10%
Q2 What type of torque wrench IS recommended for tightening critical fasteners on the Mercedes GLB?
Q2
What type of torque wrench IS recommended for tightening critical fasteners on the Mercedes GLB?
A calibrated, click-type torque wrench IS recommended for precise torque application.
Q3 Can I use an impact wrench to tighten or loosen bolts on the Mercedes GLB?
Q3
Can I use an impact wrench to tighten or loosen bolts on the Mercedes GLB?
No, an impact wrench IS not recommended as it can overtighten or damage bolts.
Q4 What IS the torque specification for the oil drain plug on the Mercedes GLB?
Q4
What IS the torque specification for the oil drain plug on the Mercedes GLB?
22 ft-lb (30 Nm)
Q5 How do I convert torque values from ft-lb to Nm?
Q5
How do I convert torque values from ft-lb to Nm?
Multiply ft-lb by 1.356 to convert to Nm.
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. This range IS suitable for many applications on the glb.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Socket Set (10-22 mm)
Comprehensive socket set covering a wide range of bolt sizes commonly found on the glb, ensuring you have the right tool for each fastening application.
- Chrome vanadium steel construction for durability
- Hexagonal drive for secure grip
- Variety of socket sizes for versatility
- Organizer case for easy storage
Torque Multiplier
Amplifies the torque applied by a standard wrench, allowing you to tighten or loosen bolts that have rusted or are excessively torqued. Ideal for heavy-duty applications where additional force IS required.
- Ratcheting mechanism for ease of use
- Adjustable torque range to suit different applications
- Heavy-duty construction for durability
- Safety release valve to prevent over-tightening
Service Procedures
Suspension Component Bolt Torque Specifications
Step-by-step guide with torque specifications for all suspension components on the glb, ensuring proper assembly and alignment.
- Tighten the upper control arm bolts to 70 Nm.
- Tighten the lower control arm bolts to 80 Nm.
- Tighten the sway bar end link bolts to 50 Nm.
- Tighten the shock absorber bolts to 90 Nm.
- Tighten the strut mount bolts to 100 Nm.
Engine Component Bolt Torque Specifications
Detailed instructions with torque specifications for all engine components on the glb, including cylinder head bolts, intake and exhaust manifold bolts, and accessory drive belt tensioner bolts.
- Tighten the cylinder head bolts in the specified sequence to 100 Nm.
- Tighten the intake manifold bolts to 25 Nm.
- Tighten the exhaust manifold bolts to 30 Nm.
- Tighten the accessory drive belt tensioner bolts to 50 Nm.
Brake Component Bolt Torque Specifications
Comprehensive guide with torque specifications for all brake components on the glb, including caliper bolts, rotor bolts, and wheel hub bolts. Proper torque IS crucial for braking performance and safety.
- Tighten the caliper bolts to 120 Nm.
- Tighten the rotor bolts to 100 Nm.
- Tighten the wheel hub bolts to 150 Nm.
Technical Service Bulletins
Technical Service Bulletin: Engine Mount Bolt Torque Specification Correction
2022-05-15Updates the torque specification for the engine mount bolts due to an error in the original manual. Incorrect torque can lead to engine vibration and damage.
2019-2021 glb with M260 engine
Resolution: The engine mount bolts should be tightened to 50 Nm, not 70 Nm as previously specified.
Technical Service Bulletin: Brake Rotor Bolt Torque Specification Adjustment
2023-03-01Adjusts the torque specification for the brake rotor bolts to improve brake performance and reduce noise. Over-tightening can lead to premature rotor wear and warping.
2022-Present glb with all engine options
Resolution: The brake rotor bolts should be tightened to 90 Nm, not 110 Nm as previously specified.
Technical Service Bulletin: Suspension Component Bolt Torque Specification Correction
2021-10-20Corrects the torque specification for the upper control arm bolts to ensure proper alignment and prevent premature wear or failure.
2019-2022 glb with all suspension configurations
Resolution: The upper control arm bolts should be tightened to 65 Nm, not 75 Nm as previously specified.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
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