How to replace the differential seal and driveshaft oil seals on the BMW Z4?

In order to replace the driveshaft flange oil seal you will need to; drain the differential- remove differential unit, secure in a vise. Take off the retaining plate and scribe alignment marks on the drive flange nut, the drive flange, and the pinion so that they can easily be replaced when reassembling, get rid of the old retaining plate. Having firmly fixed the drive flange with one hand putting on a metal bar, with the other hand, unscrew the nut and count the turns. Employ a puller to pull out the drive flange of the pinion and if it is worn out, change with a new one, for the dust cover. Remove the old oil seal and scrape the seat, subsequently lubricate the lips of the new oil seal with oil and insert the oil seal until it has reached the flushing position. Slide on the dust cover, position the drive flange at those marks and screw on the flange nut as tight as the last time without overdoing it. Replace the original retaining plate with the new one and fit the differential, and refill the latter with oil. For driveaxle flange oil seal for example, drain the differential oil, remove the bolt securing the constant velocity joint of the driveshaft and then secure the driveshaft to avoid movement. With caution, detach the driveshaft flange on the differential bearing, without damaging the dust seal; remove the flange and the dust seal and, if the latter is worn out, fit a new one. Remove the old oil seal, degrease the seat and fit a new circlip in the splined shaft. Lubricate the outside of the new oil seal at the country of the sealing lip, and then insert it into casing, it is possible if need to use a socket. This you have to install the dust cover and drive flange, now the circlip retain it in its place. Slide the driveshaft to the flange, and fit new attaching bolts and covers before refilling the differential assembly with oil.

Genuine BMW Z4 Differential Seal

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9 Differential Seals found

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BMW Z4 Shaft Seal
Part Number: 31507609535
$14.45 MSRP: $18.20
You Save: $3.75 (21%)
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Product Specifications
- Replaces: 33-10-1-214-099, 33-12-1-203-811, 33-12-1-212-461
- 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)
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BMW Z4 Shaft Seal With Lock Ring
Part Number: 33107505604
$14.45 MSRP: $18.20
You Save: $3.75 (21%)
Ships in 1-3 Business Days
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Product Specifications
- Replaces: 33-13-1-214-322
- 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)
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BMW Z4 Shaft Seal
Part Number: 33107609536
$14.45 MSRP: $18.20
You Save: $3.75 (21%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaces: 33-10-1-213-412, 33-12-1-214-443
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, M40i(G29), sDrive30i(G29)
- 2009-2016 BMW Z4 | sDrive35i(E89), sDrive35is(E89)
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BMW Z4 SEALING KIT REAR AXLE DIFFER
Part Number: 33108860348
$77.64 MSRP: $96.58
You Save: $18.94 (20%)
Ships in 1-2 Business Days
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Product Specifications
- Position: Rear
- Replaces: 33-10-7-568-368
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, M40i(G29), sDrive30i(G29)
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BMW Z4 Gasket Set Differential
Part Number: 33107564416
$77.64 MSRP: $96.58
You Save: $18.94 (20%)
Ships in 1-3 Business Days
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Product Specifications
- Replaced by: 33108860346
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2011 BMW Z4 | sDrive30i(E89)
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BMW Z4 Shaft Seal With Lock Ring
Part Number: 33107505605
$17.98 MSRP: $23.06
You Save: $5.08 (23%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive35i(E89), sDrive35is(E89)
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BMW Z4 Gasket Set Differential
Part Number: 33107568368
$77.64 MSRP: $96.58
You Save: $18.94 (20%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 33108860348
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2020 BMW Z4 | M40i(G29), sDrive30i(G29)
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BMW Z4 DUST GUARD RING, PLASTIC
Part Number: 33205A318F8
$14.61 MSRP: $17.85
You Save: $3.24 (19%)
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Product Specifications
- Replaces: 33-21-9-884-746, 33-21-8-740-848, 33-21-7-616-459
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, M40i(G29), sDrive30i(G29)
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BMW Z4 DUST GUARD RING, PLASTIC
Part Number: 33205A31900
$14.61 MSRP: $17.85
You Save: $3.24 (19%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 33-21-7-616-458, 33-21-8-740-847
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, 6 Cyl 3.0 L GAS, sDrive30i(G29)

BMW Z4 Differential Seal

The BMW Z4 Differential Seal is a stern guardian, preventing the gear oil from leaking out from the rear differential and preventing dirt and moisture from getting inside. This ensures that the gears can provide smooth torque split in every corner. For BMW models, located where the driveshaft meets the differential housing, the Differential Seal contains a synthetic gear lubricant that cushions the open or limited slip gears and prevents leaks that could cause clanking or overheating. Over the course of the Z4 production run, two primary differential designs emerge: the open design with the torque evenly distributed and the limited slip unit with clutch packs and springs to send more power to the wheel with better grip. Both utilize the same basic Differential Seal concept, but the seal for the limited slip design carries slightly elevated internal pressures with its clutch action and thus incorporates tougher synthetic rubber for longevity. When the Differential Seal wears out, owners may notice oil spots, rattles when shifting into drive, or slippage when turning, indicating that it is time for timely replacement to keep the BMW driveline safe and maintain the Z4 feeling agile. Timely Differential Seal care also prevents costly gear repairs.

If you are looking for OEM BMW Z4 Differential Seal, 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 Differential Seal that come backed by the manufacturer's warranty.

BMW Z4 Differential Seal Parts Questions & Experts Answers

Shaft Seal
31507609535
Q:
How to replace the differential seal and driveshaft oil seals on the BMW Z4?
Posted by Mackinley C.
A:
In order to replace the driveshaft flange oil seal you will need to; drain the Differential- remove differential unit, secure in a vise. Take off the retaining plate and scribe alignment marks on the drive flange nut, the drive flange, and the pinion so that they can easily be replaced when reassembling, get rid of the old retaining plate. Having firmly fixed the drive flange with one hand putting on a metal bar, with the other hand, unscrew the nut and count the turns. Employ a puller to pull out the drive flange of the pinion and if it is worn out, change with a new one, for the dust cover. Remove the old oil seal and scrape the seat, subsequently lubricate the lips of the new oil seal with oil and insert the oil seal until it has reached the flushing position. Slide on the dust cover, position the drive flange at those marks and screw on the flange nut as tight as the last time without overdoing it. Replace the original retaining plate with the new one and fit the differential, and refill the latter with oil. For driveaxle flange oil seal for example, drain the differential oil, remove the bolt securing the constant velocity joint of the driveshaft and then secure the driveshaft to avoid movement. With caution, detach the driveshaft flange on the differential bearing, without damaging the dust seal; remove the flange and the dust seal and, if the latter is worn out, fit a new one. Remove the old oil seal, degrease the seat and fit a new circlip in the splined shaft. Lubricate the outside of the new oil seal at the country of the sealing lip, and then insert it into casing, it is possible if need to use a socket. This you have to install the dust cover and drive flange, now the circlip retain it in its place. Slide the driveshaft to the flange, and fit new attaching bolts and covers before refilling the differential assembly with oil.
Answered by BMW Parts Specialist Armando / Apr 12, 2024

Genuine BMW Z4 Differential Seal

9 Differential Seals found

BMW Z4 Differential Seal

BMW Z4 Differential Seal Parts Questions & Experts Answers

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