Volvo Vehicle Models Volvo V40 2012-2019 Torque Specifications
Complete Volvo Vehicle Models Volvo V40 2012-2019 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.
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
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.
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.
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
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.
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.
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Torque Wrench (3/8" Drive)
Torque Wrench (1/2" Drive)
Angle Gauge
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
1.6l I4 Engine
Torque specifications for 1.6L-I4 Engine
1.6l I4 Engine
Torque specifications for 1.6L-I4 Engine
Engine Block
1 Main Bearing Cap Bolts
M10 x 1.5
Main Bearing Cap Bolts
M10 x 1.5 2 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5Turbocharger
1 Turbocharger Mounting Bolts
M8 x 1.25
Turbocharger Mounting Bolts
M8 x 1.25 2 Oil Feed Line Fitting
M10 x 1.25
Oil Feed Line Fitting
M10 x 1.25Exhaust System
1 Exhaust Manifold Bolts
M8 x 1.25
Exhaust Manifold Bolts
M8 x 1.25 2 Turbocharger Downpipe Bolts
M10 x 1.5
Turbocharger Downpipe Bolts
M10 x 1.5 1.6l I4 Turbo Engine
Torque specifications for 1.6L-I4-TURBO Engine
1.6l I4 Turbo Engine
Torque specifications for 1.6L-I4-TURBO Engine
Engine Block
1 Main Bearing Cap Bolts
M10 x 1.5
Main Bearing Cap Bolts
M10 x 1.5 2 Cylinder Head Bolts
M12 x 1.5
Cylinder Head Bolts
M12 x 1.5Turbocharger
1 Turbocharger Mounting Bolts
M8 x 1.25
Turbocharger Mounting Bolts
M8 x 1.25 2 Oil Feed Line Fitting
M10 x 1.25
Oil Feed Line Fitting
M10 x 1.25Exhaust System
1 Exhaust Manifold Bolts
M8 x 1.25
Exhaust Manifold Bolts
M8 x 1.25 2 Turbocharger Downpipe Bolts
M10 x 1.5
Turbocharger Downpipe Bolts
M10 x 1.5 2.0l Engine
Torque specifications for 2.0L Engine
2.0l Engine
Torque specifications for 2.0L Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.25
Cylinder Head Bolts
M10 x 1.25 2 Rocker Arms/Shafts Bolts
M8 x 1.25
Rocker Arms/Shafts Bolts
M8 x 1.25Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.5
Main Bearing Bolts
M12 x 1.5 2 Connecting Rod Nuts
M8 x 1.0
Connecting Rod Nuts
M8 x 1.0Flywheel And Clutch
1 Flywheel Bolts
M10 x 1.25
Flywheel Bolts
M10 x 1.25Oil System
1 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0 2 Oil Drain Plug
M14 x 1.5
Oil Drain Plug
M14 x 1.5Turbocharger System
1 Turbocharger Mounting Bolts
M8 x 1.25
Turbocharger Mounting Bolts
M8 x 1.25 2 Turbocharger Oil Feed Line Bolt
M10 x 1.0
Turbocharger Oil Feed Line Bolt
M10 x 1.0 2.0l I4 Engine
Torque specifications for 2.0L-I4 Engine
2.0l I4 Engine
Torque specifications for 2.0L-I4 Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.25
Cylinder Head Bolts
M10 x 1.25 2 Valve Cover Bolts
M6 x 1.0
Valve Cover Bolts
M6 x 1.0Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.5
Main Bearing Bolts
M12 x 1.5 2 Connecting Rod Nuts
M8 x 1.25
Connecting Rod Nuts
M8 x 1.25Timing System
1 Timing Belt/Chain Tensioner Bolt
M8 x 1.25
Timing Belt/Chain Tensioner Bolt
M8 x 1.25 2 Camshaft Sprocket Bolt
M10 x 1.25
Camshaft Sprocket Bolt
M10 x 1.25Oil System
1 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0 2 Oil Drain Plug Bolt
M12 x 1.5
Oil Drain Plug Bolt
M12 x 1.5Accessories
1 Starter Motor Mounting Bolts
M8 x 1.25
Starter Motor Mounting Bolts
M8 x 1.25 2 Alternator Mounting Bolts
M8 x 1.25
Alternator Mounting Bolts
M8 x 1.25 2.0l I4 Turbo Engine
Torque specifications for 2.0L-I4-TURBO Engine
2.0l I4 Turbo Engine
Torque specifications for 2.0L-I4-TURBO Engine
Cylinder Head
1 Cylinder Head Bolts
M10 x 1.25
Cylinder Head Bolts
M10 x 1.25 2 Rocker Arms/Shafts Bolts
M8 x 1.25
Rocker Arms/Shafts Bolts
M8 x 1.25Crankshaft And Bearings
1 Main Bearing Bolts
M12 x 1.5
Main Bearing Bolts
M12 x 1.5 2 Connecting Rod Nuts
M8 x 1.0
Connecting Rod Nuts
M8 x 1.0Flywheel And Clutch
1 Flywheel Bolts
M10 x 1.25
Flywheel Bolts
M10 x 1.25Oil System
1 Oil Pan Bolts
M6 x 1.0
Oil Pan Bolts
M6 x 1.0 2 Oil Drain Plug
M14 x 1.5
Oil Drain Plug
M14 x 1.5Turbocharger System
1 Turbocharger Mounting Bolts
M8 x 1.25
Turbocharger Mounting Bolts
M8 x 1.25 2 Turbocharger Oil Feed Line Bolt
M10 x 1.0
Turbocharger Oil Feed Line Bolt
M10 x 1.0 Body
Torque specifications for Body
Body
Torque specifications for Body
Fuel System
1 Fuel Tank Strap Bolts
M8 x 1.25
Fuel Tank Strap Bolts
M8 x 1.25 2 Fuel Filler Neck Bolts
M6 x 1.0
Fuel Filler Neck Bolts
M6 x 1.0Electrical System
1 Battery Terminal Nuts
M6 x 1.0
Battery Terminal Nuts
M6 x 1.0Body Panels
1 Body Panel Bolts
M6 x 1.0
Body Panel Bolts
M6 x 1.0Bumpers
1 Bumper Mounting Bolts
M8 x 1.25
Bumper Mounting Bolts
M8 x 1.25Seats
1 Seat Mounting Bolts
M10 x 1.5
Seat Mounting Bolts
M10 x 1.5Doors
1 Door Hinge Bolts
M8 x 1.25
Door Hinge Bolts
M8 x 1.25Roof Rack
1 Roof Rack Mounting Bolts
M8 x 1.25
Roof Rack Mounting Bolts
M8 x 1.25Spoiler
1 Spoiler/Wing Mounting Bolts
M6 x 1.0
Spoiler/Wing Mounting Bolts
M6 x 1.0Interior Trim
1 Interior Trim Panel Bolts
M6 x 1.0
Interior Trim Panel Bolts
M6 x 1.0 Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper System
1 Brake Caliper Bolts
M10 x 1.25
Brake Caliper Bolts
M10 x 1.25 2 Brake Caliper Mounting Bracket Bolts
M12 x 1.5
Brake Caliper Mounting Bracket Bolts
M12 x 1.5Brake Disc Drum System
1 Brake Disc/Drum Retaining Bolts
M8 x 1.25
Brake Disc/Drum Retaining Bolts
M8 x 1.25Wheel Attachment System
1 Wheel Lug Nuts
M12 x 1.5
Wheel Lug Nuts
M12 x 1.5Brake Hydraulic System
1 Brake Hose Banjo Bolt
M10 x 1.0
Brake Hose Banjo Bolt
M10 x 1.0 2 Brake Bleeder Valve
M8 x 1.25
Brake Bleeder Valve
M8 x 1.25 3 Brake Master Cylinder Mounting Bolts
M8 x 1.25
Brake Master Cylinder Mounting Bolts
M8 x 1.25 4 Brake Booster Mounting Bolts
M8 x 1.25
Brake Booster Mounting Bolts
M8 x 1.25 Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine To Transmission
1 Flywheel Bolts
M10 x 1.25
Flywheel Bolts
M10 x 1.25 2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5 3 Transmission Bellhousing Bolts
M8 x 1.25
Transmission Bellhousing Bolts
M8 x 1.25Transmission
1 Transmission Mounting Bolts
M10 x 1.5
Transmission Mounting Bolts
M10 x 1.5 2 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0 3 Transmission Drain and Fill Plugs
M12 x 1.5
Transmission Drain and Fill Plugs
M12 x 1.5Driveshaft And Axles
1 Drive Axle/Half Shaft Bolts
M10 x 1.25
Drive Axle/Half Shaft Bolts
M10 x 1.25 2 CV Joint/Axle Nut
M24 x 1.5
CV Joint/Axle Nut
M24 x 1.5 3 Propeller/Drive Shaft Bolts
M10 x 1.25
Propeller/Drive Shaft Bolts
M10 x 1.25Differential And Transfer Case
1 Differential Mounting Bolts
M10 x 1.25
Differential Mounting Bolts
M10 x 1.25 2 Differential Drain/Fill Plug
M12 x 1.5
Differential Drain/Fill Plug
M12 x 1.5 3 Transfer Case Mounting Bolts
M8 x 1.25
Transfer Case Mounting Bolts
M8 x 1.25 4 Transfer Case Drain/Fill Plug
M12 x 1.5
Transfer Case Drain/Fill Plug
M12 x 1.5Clutch System
1 Clutch Pressure Plate Bolts
M6 x 1.0
Clutch Pressure Plate Bolts
M6 x 1.0Rear Axle
1 Rear Axle Hub Bolts
M10 x 1.25
Rear Axle Hub Bolts
M10 x 1.25 Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Starter Motor
1 Starter Motor Mounting Bolts
M8 x 1.25
Starter Motor Mounting Bolts
M8 x 1.25Alternator
1 Alternator Mounting Bolts
M8 x 1.25
Alternator Mounting Bolts
M8 x 1.25Battery
1 Battery Terminal Nuts
M6 x 1.0
Battery Terminal Nuts
M6 x 1.0Ac System
1 A/C Compressor Mounting Bolts
M8 x 1.25
A/C Compressor Mounting Bolts
M8 x 1.25 2 A/C Line Fittings
M8 x 1.25
A/C Line Fittings
M8 x 1.25Grounding Points
1 Grounding Points Bolts
M6 x 1.0
Grounding Points Bolts
M6 x 1.0Fuse Box
1 Fuse Box Mounting Bolts
M6 x 1.0
Fuse Box Mounting Bolts
M6 x 1.0Ecu
1 ECU/Control Module Mounting Bolts
M6 x 1.0
ECU/Control Module Mounting Bolts
M6 x 1.0Wiring Harness
1 Wiring Harness Bracket Bolts
M6 x 1.0
Wiring Harness Bracket Bolts
M6 x 1.0Sensors
1 Sensor Mounting Bolts
M6 x 1.0
Sensor Mounting Bolts
M6 x 1.0 Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
Exhaust Manifold Headers
1 Exhaust Manifold/Headers Bolts
M8 x 1.25
Exhaust Manifold/Headers Bolts
M8 x 1.25 2 Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25Exhaust Pipe Connections
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25 2 Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25Emission Control Components
1 EGR Valve Bolts
M6 x 1.0
EGR Valve Bolts
M6 x 1.0 2 Oxygen Sensor (O2 Sensor) Mounting Bolt/Nut
M12 x 1.5
Oxygen Sensor (O2 Sensor) Mounting Bolt/Nut
M12 x 1.5 3 NOx Sensor Mounting Bolt/Nut
M12 x 1.5
NOx Sensor Mounting Bolt/Nut
M12 x 1.5 4 DPF (Diesel Particulate Filter) Mounting Bolts
M10 x 1.5
DPF (Diesel Particulate Filter) Mounting Bolts
M10 x 1.5 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
Exhaust Manifold/Headers to Cylinder Head Bolts
M8 x 1.25 2 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M8 x 1.25Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25
Catalytic Converter to Exhaust Pipe Bolts
M8 x 1.25Muffler
1 Muffler to Exhaust Pipe Bolts
M8 x 1.25
Muffler to Exhaust Pipe Bolts
M8 x 1.25Heat Shield
1 Exhaust Heat Shield Bolts
M6 x 1.0
Exhaust Heat Shield Bolts
M6 x 1.0Exhaust Hanger
1 Exhaust Hanger Bolts
M8 x 1.25
Exhaust Hanger Bolts
M8 x 1.25Oxygen Sensor
1 Oxygen Sensor Mounting Bolts
M8 x 1.25
Oxygen Sensor Mounting Bolts
M8 x 1.25Exhaust Flange
1 Exhaust Flange Bolts
M8 x 1.25
Exhaust Flange Bolts
M8 x 1.25 Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Delivery System
1 Fuel Rail Bolts
M6 x 1.0
Fuel Rail Bolts
M6 x 1.0 2 Fuel Injector Bolts
M6 x 1.0
Fuel Injector Bolts
M6 x 1.0 3 High-Pressure Fuel Pump Mounting Bolts
M8 x 1.25
High-Pressure Fuel Pump Mounting Bolts
M8 x 1.25 4 Fuel Pressure Regulator Bolts
M6 x 1.0
Fuel Pressure Regulator Bolts
M6 x 1.0 5 Fuel Line Flange Bolts
M8 x 1.25
Fuel Line Flange Bolts
M8 x 1.25Fuel Storage System
1 Fuel Tank Strap Bolts
M10 x 1.5
Fuel Tank Strap Bolts
M10 x 1.5 2 Fuel Tank Sender Unit Bolts
M6 x 1.0
Fuel Tank Sender Unit Bolts
M6 x 1.0Fuel Evaporative System
1 Fuel Evaporative Canister Bolts
M6 x 1.0
Fuel Evaporative Canister Bolts
M6 x 1.0Fuel Filling System
1 Fuel Filler Neck Bolts
M6 x 1.0
Fuel Filler Neck Bolts
M6 x 1.0Fuel Filtration System
1 Fuel Filter Bolt/Nut
M8 x 1.25
Fuel Filter Bolt/Nut
M8 x 1.25 Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
A/C Compressor Mounting
1 A/C Compressor Mounting Bolts
M12 x 1.5
A/C Compressor Mounting Bolts
M12 x 1.5A/C Line Fittings
1 A/C Line Fittings
M10 x 1.25
A/C Line Fittings
M10 x 1.25A/C Condenser Mounting
1 A/C Condenser Mounting Bolts
M12 x 1.5
A/C Condenser Mounting Bolts
M12 x 1.5A/C Evaporator Mounting
1 A/C Evaporator Mounting Bolts
M10 x 1.25
A/C Evaporator Mounting Bolts
M10 x 1.25A/C Refrigerant Line Bracket
1 A/C Refrigerant Line Bracket Bolts
M8 x 1.25
A/C Refrigerant Line Bracket Bolts
M8 x 1.25A/C Compressor Clutch
1 A/C Compressor Clutch Bolt
M14 x 1.5
A/C Compressor Clutch Bolt
M14 x 1.5 Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Strut/Shock Absorber Mounting
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Strut/Shock Absorber Mounting Bolts
M14 x 1.5Control Arm Mounting
1 Upper Control Arm Bolts
M12 x 1.25
Upper Control Arm Bolts
M12 x 1.25 2 Lower Control Arm Bolts
M14 x 1.5
Lower Control Arm Bolts
M14 x 1.5Ball Joint and Tie Rod End Mounting
1 Ball Joint Nut
M16 x 1.5
Ball Joint Nut
M16 x 1.5 2 Tie Rod End Nut
M16 x 1.5
Tie Rod End Nut
M16 x 1.5Sway Bar Link Mounting
1 Sway Bar Link Nut
M10 x 1.25
Sway Bar Link Nut
M10 x 1.25Steering Knuckle Mounting
1 Steering Knuckle Bolts
M14 x 1.5
Steering Knuckle Bolts
M14 x 1.5Coil Spring Mounting
1 Coil Spring Mounting Bolts
M10 x 1.25
Coil Spring Mounting Bolts
M10 x 1.25 Tf 80 Transmission
Torque specifications for Tf 80 Transmission
Tf 80 Transmission
Torque specifications for Tf 80 Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M10 x 1.5
Transmission Mounting Bolts
M10 x 1.5 2 Transmission Bellhousing Bolts
M10 x 1.5
Transmission Bellhousing Bolts
M10 x 1.5Transmission Fluid System
1 Transmission Oil Pan Bolts
M6 x 1.0
Transmission Oil Pan Bolts
M6 x 1.0 2 Transmission Drain Plug
M12 x 1.5
Transmission Drain Plug
M12 x 1.5 3 Transmission Fill Plug
M12 x 1.5
Transmission Fill Plug
M12 x 1.5Drivetrain Connection
1 Drive Axle/Half Shaft Bolts
M12 x 1.5
Drive Axle/Half Shaft Bolts
M12 x 1.5 2 CV Joint/Axle Nut
M24 x 1.5
CV Joint/Axle Nut
M24 x 1.5 3 Propeller/Drive Shaft Bolts
M12 x 1.5
Propeller/Drive Shaft Bolts
M12 x 1.5Internal Transmission Components
1 Torque Converter Bolts
M8 x 1.25
Torque Converter Bolts
M8 x 1.25 2 Transmission Valve Body Bolts
M6 x 1.0
Transmission Valve Body Bolts
M6 x 1.0 3 Transmission Shift Linkage Bolts
M8 x 1.25
Transmission Shift Linkage Bolts
M8 x 1.25Transmission Cooling System
1 Transmission Cooler Line Fittings
M10 x 1.5
Transmission Cooler Line Fittings
M10 x 1.5Troubleshooting 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
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
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
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 recommended torque for the wheel nuts on a 2012-2019 Volvo V40?
What IS the recommended torque for the wheel nuts on a 2012-2019 Volvo V40?
Tighten the wheel nuts to 120 Nm (89 lb-ft) using a torque wrench.
Q2 What IS the torque setting for the spark plugs on my 2016 Volvo V40?
What IS the torque setting for the spark plugs on my 2016 Volvo V40?
Apply anti-seize compound to the threads of the spark plugs and tighten them to 25 Nm (18 lb-ft) using a torque wrench.
Q3 IS it safe to use an impact wrench to tighten bolts on my Volvo V40?
IS it safe to use an impact wrench to tighten bolts on my Volvo V40?
No, using an impact wrench IS not recommended as it can overtighten bolts and cause damage. Always use a torque wrench to ensure proper torque IS applied.
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 accurate torque measurements during maintenance and repairs. A digital wrench provides precise readings, ensuring components are tightened to the correct specifications.
- Precise torque readings on a digital display
- Audible and visual alerts for accurate tightening
- Versatile with a range suitable for various V40 applications
- Ergonomic design for ease of use
Service Procedures
Tightening Engine Cylinder Head Bolts
Step-by-step guide for properly tightening the cylinder head bolts to ensure a secure and leak-free connection.
- Clean the bolt threads and mating surfaces.
- Apply a small amount of engine oil to the threads.
- Tighten the bolts to 20 Nm in the correct sequence.
- Loosen the bolts half a turn.
- Re-tighten the bolts to 45 Nm plus an additional 90 degrees.
- Double-check the torque with a torque wrench.
Replacing Wheel Lug Nuts
Detailed instructions on how to safely remove and replace wheel lug nuts, ensuring proper torque for secure wheel mounting.
- Park the vehicle on a level surface and engage the parking brake.
- Loosen the lug nuts slightly using a lug wrench.
- Lift the vehicle using a jack and secure it with jack stands.
- Completely remove the lug nuts and take off the wheel.
- Clean the lug nuts and wheel mounting surfaces.
- Apply a small amount of anti-seize compound to the lug nut threads.
- Hand-tighten the lug nuts onto the wheel.
- Use a torque wrench to tighten the lug nuts to 120 Nm.
- Lower the vehicle and fully tighten the lug nuts using a star pattern.
Technical Service Bulletins
TSB: Incorrect Engine Cylinder Head Bolt Torque
2014-03-15This bulletin addresses an issue with incorrect engine cylinder head bolt torque specifications provided in previous documentation.
Resolution: The correct torque specification for the engine cylinder head bolts IS 45 Nm plus an additional 90 degrees. Refer to the updated service procedure for detailed instructions.
TSB: Wheel Lug Nut Torque Adjustment
2018-07-24This bulletin provides updated torque specifications for wheel lug nuts to ensure proper wheel mounting and prevent safety concerns.
Resolution: The updated torque specification for wheel lug nuts IS 130 Nm. Refer to the latest service manual for proper tightening procedures.
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
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
About the Author
Expert automotive knowledge and experience
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.