Bavarian Autosport BMW Transmission Parts for BMW 3 Series E46 (1999-2005)

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Looking for parts for your BMW automatic transmission or manual transmission? You'll find many of the parts available to service your BMW's transmission here. While internal transmission servicing and rebuilding should be done by professionals, there are a lot of things on the outside of the transmission that you can service or replace yourself. These include gearbox seals, o-rings, gaskets, automatic transmission filters, backup light switches, mounting bolts, flanges, collar nuts, screw plugs, Mechatronics, and more.

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Bav Auto Automatic Transmission Filter Kit - E39 E46 Z4 (A5S325Z Tran...

For sedan models with A5S325Z transmission and production date up to 03/2002. For touri... For vehicles with A5S325Z transmission only, up to 03/2003 production date For vehicles with A5S325Z transmission only, from 03/2000 production date

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639803

Part#: 24341423376

Ships on Aug 24, 2026

Sale - Save 20% $ 29.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD

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Sale - Save 20%

$ 29.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD

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Remember to service your transmission at the recommended intervals to increase your transmission's life span and reliability! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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M18 Automatic Transmission Fill Plug - BMW

For vehicles with production date up to 03/2003 For sedan models with production date up to 03/2002. For touring models with production...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:22690760

Part#: 24117552349

In Stock

Sale - Save 20% $ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 7.19 USD

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$ 7.19 USD

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Fits various BMW Transmissions. Includes rubber sealing washer/o-ring.

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639833

Part#: 13621433076

In Stock

Sale - Save 20% $ 14.99

This product was last offered at the strikethrough price on
05-03-2026

$ 11.99 USD

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Sale - Save 20%

$ 14.99

This product was last offered at the strikethrough price on
05-03-2026

$ 11.99 USD

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This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bavarian Autosport BMW Transmission Parts for BMW 3 Series E46 (1999-2005)

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Bav Auto Automatic Transmission Filter Kit - E39 E46 Z4 (A5S325Z Tran...

M18 Automatic Transmission Fill Plug - BMW

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

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