Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Volvo V70FACTORY OEM SERVICE PROCEDURE
Power Transmission
- Bevel gear: Transmits torque from transmission to propeller shaft. Always rotates at the same rate as the front wheel pair.
- Propeller shaft: Transmits torque from front axle (bevel gear) to rear axle. Always rotates at the same rate as the front wheel pair.
- Active On demand Coupling (AOC): At four-wheel drive, the AOC transmits torque from the propeller shaft to the rear wheel pair. Rotates at four-wheel drive.
- Differential gear: Transmits the force to the rear wheel pairs. Rotates at the same rate as the front wheels at four-wheel drive.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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