How to change the front wheel bearing on a Volvo?
Guide to changing the front wheel bearing on a Volvo V70/S60/S80 (1999-2007). The example vehicle here is a 2003 Volvo V70 D5, but the procedure is the same for the S60 and S80 from the same era. This video is intended as a guide only, it is not the official manufacturer repair procedure. Undertake DIY automotive repairs at your own risk.
How does the Volvo front wheel drive system work?
It uses a mechanical pump connected to the input and output shaft of the Haldex clutch assembly. Normal driving with ample traction means the car is nearly entirely front wheel drive. When wheel slip occurs, the difference in rotation speed between the input and output shaft drives the hydraulic pump.
How does the clutch system work on a Volvo?
Operation of the clutch pack is almost entirely mechanical—a mechanically driven pump and a mechanical linear throttle valve were used to determine wheel slip and lock up of the clutch pack, converting the system from 90% / 10% front/rear torque distribution to 50% / 50% torque distribution within 90 degrees of wheel slip.
When did Volvo use a viscous coupling system?
system in 2003, Volvo used a viscous coupling designed by GKN Driveline to transfer torque to the rear axles. A viscous coupling is an assembly of closely spaced plates bathed in a dilatant fluid (essentially just a thickening fluid). This viscous coupling links the front and rear drivetrains.
How do you remove a front wheel bearing?
Your objective is to remove the knuckle assembly from the vehicle so you can place it on the press and remove the wheel bearing. This is how the knuckle assembly will look once you removed it from the vehicle. Step 1.
Where are the wheel bearings on a car?
This is because the front rotors are often behind the front hubs, which means that to change the rotors you have to pull the hubs off the front spindles, at which point the bearings are practically in your hand. So, if you need to do a front brake job, check the wheel bearings.
When is it time to replace front wheel bearings?
If you feel play, the wheel bearing needs to be adjusted. If you can’t adjust out the play, or if when you spin it you hear and feel noise, it’s time to replace the bearings. On many vintage cars, replacing front wheel bearings is synergistic with replacing the front rotors.