How to properly remove and reinstall the rear wheel bearing in the trailing arm on BMW Z4?

To begin, remove the rear hub and then take out the hub bearing retaining snap-ring from the trailing arm. Use a hammer and a suitable punch to tap the hub bearing out from the trailing arm. Clean the trailing arm bore thoroughly, eliminating all dirt and grease, and polish away any burrs or raised edges that could obstruct reassembly; replace the snap-ring if its condition is questionable. During reassembly, apply a light film of clean engine oil to the bearing outer race to facilitate installation. Align the bearing in the trailing arm and tap it fully into position, ensuring it enters squarely with the aid of a suitable tubular spacer that only contacts the bearing's outer race. Secure the bearing in place with the snap-ring, ensuring it is fully seated in the trailing arm groove, and finally, install the rear hub.

Genuine BMW Z4 Wheel Bearing

Hub Bearing

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BMW Z4 Wheel Hub With Bearing
Part Number: 33406899175
$298.89 MSRP: $426.50
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- Replaces: 31-20-2-408-656, 31-20-8-838-134, 31-20-6-871-193, 31-20-6-866-316
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
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- Replaced by: 33406899175
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
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- Other Name: Front Hub & Bearing, Hub Assembly
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
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- Other Name: Wheel hub with bearing, front; Front Hub & Bearing, Hub & Bearing, Hub Assembly
- Position: Front
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
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BMW Z4 Angular Contact Ball Bearing,Radial
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- Other Name: Bearing, Rear Wheel Bearing, Wheel Bearing
- Replaces: 33-41-7-749-628
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2016 BMW Z4 | 2.5i(E85), 3.0i(E85), Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85), sDrive28i(E89), sDrive30i(E89), sDrive35i(E89), sDrive35is(E89)
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Part Number: 31206866315
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BMW Z4 Wheel Bearing

The BMW Z4 Wheel Bearing allows each wheel to spin with minimal friction, providing the crisp steering feel and stable ride of the roadster. Inside the hub is the Wheel Bearing, whose job is to have polished steel balls or tapered rollers rolling on a hardened race that reduces energy loss while maintaining precise alignment of the tire and brake assembly. Early Z4 generations had a serviceable design on non-driven rear axles where paired opposed tapered roller Wheel Bearing sets were paired with a separate hub, and individual parts could be pressed out and renewed, but already in the front corners a sealed unit style became the norm. Modern BMW sports cars, including the recent Z4, use almost exclusively an integral hub and Wheel Bearing assembly that arrives pre-packed, sealed against water and dirt, and often also with the ABS sensor for ease of installation. Routine inspection keeps BMW bearings quiet while BMW drivers can detect early rumble during spirited Z4 runs. Across all years, healthy Wheel Bearing components guard against wobble, noise, uneven tire wear, and unsafe handling.

If you are looking for OEM BMW Z4 Wheel Bearing, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW Z4 Wheel Bearing that come backed by the manufacturer's warranty.

BMW Z4 Wheel Bearing Parts Questions & Experts Answers

Angular Contact Ball Bearing,Radial
33416762317
Q:
How to properly remove and reinstall the rear wheel bearing in the trailing arm on BMW Z4?
Posted by Vadim F.
A:
To begin, remove the rear hub and then take out the hub bearing retaining snap-ring from the Trailing Arm. Use a hammer and a suitable punch to tap the hub bearing out from the trailing arm. Clean the trailing arm bore thoroughly, eliminating all dirt and grease, and polish away any burrs or raised edges that could obstruct reassembly; replace the snap-ring if its condition is questionable. During reassembly, apply a light film of clean engine oil to the bearing outer race to facilitate installation. Align the bearing in the trailing arm and tap it fully into position, ensuring it enters squarely with the aid of a suitable tubular spacer that only contacts the bearing's outer race. Secure the bearing in place with the snap-ring, ensuring it is fully seated in the trailing arm groove, and finally, install the rear hub.
Answered by BMW Parts Specialist Tony / Mar 07, 2025