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

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T#:639803

Part#: 24341423376

In Stock

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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Elring Automatic Transmission Oil Pan Gasket - E39, E46, Z4

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T#:592101

Part#: 24101423380

In Stock

$ 16.99

This product was last offered at the strikethrough price on
08-26-2026

$ 8.15 USD

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$ 8.15 USD

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Seal up your leaking oil pan.

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...

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T#:22690760

Part#: 24117552349

In Stock

Sale - Save 11% $ 8.99

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

$ 7.99 USD

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Sale - Save 11%

$ 8.99

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$ 7.99 USD

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

Elring Selector Shaft Seal - E36, E39, E46, E36 Z3

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T#:340660

Part#: 23121222677

In Stock

$ 5.14 USD

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$ 5.14 USD

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Rubber seals are often hardened and damaged by excessive heat and constant temperature changes causing them to become brittle and crack or split. If your seal has split, replace it with a new Elring seal for long reliability and to prevent further problems.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW's:
E36, E39, E46, E36 Z3

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Automatic Transmission Seals And O-Rings Kit

Fits 1998-2001 BMW E46 323i / 323Ci Fits 2001-03/2005 BMW E46 325i / 325Ci Fits 1998-2000 BMW E46 328i / 328Ci Fits 2001-2005 BMW E46 330i / 330Ci

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T#:54780519

Part#: 821.570

In Stock

$ 265.99

This product was last offered at the strikethrough price on
09-21-2026

$ 239.99 USD

Limited Qty Sale

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$ 265.99

This product was last offered at the strikethrough price on
09-21-2026

$ 239.99 USD

Limited Qty Sale

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Keep your BMW's drivetrain running at peak efficiency with this Elring Automatic Transmission Gasket Set.

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

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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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Qty

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

Sub-Categories

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

Elring Automatic Transmission Oil Pan Gasket - E39, E46, Z4

M18 Automatic Transmission Fill Plug - BMW

Elring Selector Shaft Seal - E36, E39, E46, E36 Z3

Automatic Transmission Seals And O-Rings Kit

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

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