The purpose of the wheel bearings on your VW Jetta is to ensure the wheels on the vehicle rotate smoothly and evenly. Dirt in the bearing seals, wear over time and driving at high speeds all can contribute to damage to the wheel bearings. If you hear a grinding noise coming from your wheels that gets louder as you accelerate, it is an indication that your wheel bearings are damaged and need to be replaced.
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Things you need
- Car jack
- Jack stand
- Lug wrench
- Socket wrench
- Replacement wheel bearings
Drive your Jetta with the windows down and determine which wheel is responsible for the grinding noise so you can identify which wheel bearings to replace. If you are unable to troubleshoot the noise on your own, have a helper stand outside the vehicle and listen as you drive slowly forward. When you've identified the wheel, park the car on a level surface and turn off the engine.
Slide the car jack under the Jetta and raise the vehicle off the ground. Place a jack stand under the jack point on the VW frame for added support.
Remove the lug nuts from the wheel with a lug wrench. Pull the wheel off the vehicle and put it off to the side.
Use the socket wrench to remove the bolts holding the brake caliper in place. Lift the brake caliper out of its bracket. Slide a coat hanger wire through the coil spring to suspend the brake caliper or secure it with a bungee cord. This will prevent the brake line from dangling loose and being damaged.
Use the wrench to remove the retaining nut in the centre of the wheel hub holding it in place. Pull the hub away from the spindle. If it is difficult to remove, use a wooden mallet to knock it loose. Slide the inner and outer bearing seals from the wheel hub.
Open up the seals and take out the old bearings. Clean all of the grease away from the seals with a clean rag. Discard the old bearings. Place a thin layer of grease on the new bearings and insert the bearings into the seals. Reattach the seals to the wheel hub. Reattach the wheel hub and the rest of the wheel assembly to the Jetta by following the removal steps in reverse.
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