BMW Transmission Filter Kits & Transmission Service Parts for BMW 3 Series G20 (2019+)

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BMW automatic transmissions require a regular filter and fluid change. While BMW has recently implemented 'Lifetime' fluid on most current models, we feel that it is critical to change the transmission filter and flush the fluid at least every 50,000 miles. We carry the BMW transmission filters and special transmission fluids for your BMW.

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Genuine BMW - Corporate Logo
T#:31655805
Part#: 83225A4F016
In Stock
$ 64.76 USD
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BMW's xDrive all-wheel-drive system relies on transfer case fluid to lubricate its internal gears and bearings, much like a differential. This fluid helps reduce friction and prevent premature wear from metal-on-metal contact. To maintain optimal performance and extend the lifespan of your transfer case, we recommend draining and refilling the fluid approximately every 60,000 miles.
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Genuine BMW Rear Differential Service Kit - BMW G20 G22/23/26 G42 w/ ...
For models with an M Sport Limited Slip Differential only - Not for standard open diffe...
Genuine BMW - Corporate Logo
T#:29898456
Part#: 83222447362KT
In Stock
Sale - Save 6% $ 170.99
$ 161.55 USD
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Sale - Save 6% $ 170.99
$ 161.55 USD
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Servicing your rear differential at regular intervals is important to ensure you maintain both performance and a long lifespan. Over time, the differential fluid can break down, lose its lubricating properties, and become contaminated with metal shavings and debris. Regularly replacing the fluid ensures that the gears and limited slip differential clutch packs are adequately lubricated, reducing wear and tear. Regular maintenance also helps identify potential issues before they become major problems.

This kit includes Genuine BMW differential fluid designed specifically for your M Sport differential and a brand new fill plug. The factory plugs include a rubberized seal that compresses over time and may not seal properly when reused.

One unique aspect of performing this service is the removal of the lower differential temperature sensor. Unlike many typical BMW differentials, this differential does not use a traditional drain plug and instead uses the temperature sensor as a drain plug. This sensor is removed to drain the differential fluid and is replaced before refilling. If you'd like to replace this sensor as well (not included in this kit), please see our recommended items or search BMW part number 33107847469.

NOTE: This kit includes 3 500ml bottles of diff fluid. BMW claims that only 1 Liter of fluid is necessary, but we found that 2 500ml bottles were insufficient. The third bottle included also allows for a minor flush of the old differential fluid before refilling.

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Genuine BMW - Corporate Logo
T#:27138562
Part#: 83225A12A00
In Stock
4% off MSRP $ 76.99
$ 73.99 USD
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4% off MSRP $ 76.99
$ 73.99 USD
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Genuine BMW - Corporate Logo
T#:5229454
Part#: 24115A13115
Ships in 1-2 days
6% off MSRP $ 262.99
$ 247.99 USD
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6% off MSRP $ 262.99
$ 247.99 USD
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GA8HP 8 speed automatic transmission. Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles. This item fits the following BMWs: E71,E89 Z4,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36
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Genuine BMW - Corporate Logo
T#:544179
Part#: 83222413511
Ships on Nov 18, 2025
Sale - Save 5% $ 55.99
$ 53.19 USD
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Sale - Save 5% $ 55.99
$ 53.19 USD
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Liqui-Moly Top Tec ATF 1800 Synthetic Automatic Transmission Fluid - ...
10X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:554450
Part#: 20032
In Stock
Sale - Save 5% $ 9.50
$ 9.03 USD
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$ 9.03 USD
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For modern automatic transmissions, hybrid transaxle systems, and electric drive differentials where an ATF fluid meeting current product specifications is required. Fully synthetic leading-edge, high-performance automatic transmission fluid. Developed to meet the severe requirements of modern multi-speed transmissions designed with 6 or more gears. The use of modern additive technology provides ultimate protection, longer fluid life, and stability combined with ideal shift quality under all operating conditions. Properties: excellent viscosity/temperature properties prevents foam formation enables a multifaceted range of applications outstanding friction characteristics high resistance to aging very good low-temperature properties excellent corrosion protection high wear resistance outstanding resistance to oxidation
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1 Liter Fully Synthetic Gear Oil 75w90
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Liqui-Moly - Corporate Logo
T#:597546
Part#: 22090
In Stock
Sale - Save 5% $ 17.99
$ 17.09 USD
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$ 17.09 USD
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Maintain the longevity of your BMW's manual transmission and differential by incorporating this fully synthetic 75w90 weight gear oil into your maintenance routine. Flushing and replacing fluids at specified intervals, as per your owner's manual, is crucial to prevent costly issues in the future. Explore the benefits of this gear oil:

  • Specifically designed for BMW manual transmissions.
  • Fully synthetic hypoid gear oil for high performance.
  • Excellent protection in diverse weather conditions.
  • Maximum wear protection and precise functionality.
  • Enables longer oil change intervals.

Meets Specifications:

  • API GL4, GL5, MT-1
  • MIL-PRF 2105 E
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Liqui Moly Manual Transmission & Differential Fluid 75w90 - 1 Lit...
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Liqui-Moly - Corporate Logo
T#:394667
Part#: 20012
In Stock
Sale - Save 5% $ 13.98
$ 13.28 USD
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$ 13.28 USD
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Liqui Moly is an official sponsor of Turner Motorsport. We work closely with Liqui Moly to ensure your BMW is receiving optimal lubrication! Select your vehicle to make sure you are viewing the best Liqui Moly options for your application.
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Liqui Moly Manual Transmission / Differential Fluid 85w90 - 1 Liter ...
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Liqui-Moly - Corporate Logo
T#:394669
Part#: 20010
In Stock
Sale - Save 11% $ 9.99
$ 8.93 USD
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Sale - Save 11% $ 9.99
$ 8.93 USD
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Interval transmission fluid changes are often recommended for manual transmissions to ensure long-term reliability and maximum wear prevention. Fresh fluid will prevent small amounts of metallic build up from preventing fluid flow and clogging filters and narrow channels.
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High Performance Gear Oil (GL4+) SAE 75W-90 (20L JUG)
10X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:577975
Part#: 20014
In Stock
Sale - Save 10% $ 406.99
$ 365.45 USD
Sale - Save 10% $ 406.99
$ 365.45 USD

Turner Motorsport recommends flushing and replacing your manual transmission and differential fluid regularly to ensure proper component wear and prevent costly issues in the future. Refer to your owner's manual for specific intervals for flushing and refill.

Liqui Moly Gear Oil for your BMW

This fully synthetic 75w90 weight gear oil is designed to maintain smooth shifting in your transmission. Its unique multi-viscosity formula provides excellent protection in all weather conditions. Being fully synthetic, it guarantees smoother shifts across all vehicles.

Note: Verify that your application requires GL4 oil. This product meets API GL-4+ specifications.

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Genuine BMW - Corporate Logo
T#:27138563
Part#: 24115A13115KT
Ships in 1-2 days
$ 759.99 USD
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$ 759.99 USD
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Over the life of a vehicle, the transmission can often be overlooked when performing routine maintenance. If left unserviced, the automatic transmission fluid will break down, causing the valve body and filter to become contaminated with deposits and sludge. This will lead to poor shifting, slipping, and ultimately, transmission failure. Kit Includes: Automatic transmission filter Oil Pan Gasket & Installation Hardware Drain plug with sealing washer Fill plug with sealing washer 7 Liters of Genuine BMW ATF 3+ Fluid NOTE: Depending on the model, an additional liter of fluid may be necessary if you are draining your oil cooler or removing the valve body. As per ZF's recommendations, Turner Motorsport suggests performing a full service on your 8HP automatic transmission every 50,000 miles. If your vehicle is modified and makes more power than stock or if your vehicle is regularly track-driven, we recommend shorter 30,000-mile service intervals. This will ensure your transmission's fluid is free from contamination which will help extend the life of internal transmission components like clutch packs and solenoids.
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