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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Transmission Detent Installation Tool Set - ZF S5D 320Z
For vehicles with production date up to 03/2003 or ZF S5D320Z transmission
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Turner Motorsport - Corporate Logo
T#:37487290
Part#: 054834LA01AKT
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The ZF S5D 320Z 5-speed transmission is known for its robust design, exceptional durability, and impressive power-handling capability. Unfortunately, as these transmissions age, shifter-related issues have become increasingly common. Problems such as difficulty selecting gears, a sticky shifter, or a decline in shift quality are often the result of worn detent springs, pins, and bushings. These components are essential for precise gear engagement and proper shifter centering, making their replacement a critical step in maintaining optimal performance.

Replacing detents requires specialized tools known as "drifts," which are notoriously hard to find. Fortunately, we've developed a complete Detent Tool Kit, featuring five precision-engineered drifts designed for exact fitment in the ZF transmission's detent bores. This toolset makes detent replacement straightforward and minimizes the risk of damage to internal transmission components.

Features

Complete Tool Kit: Includes five precision-machined drifts specifically designed for the ZF 5-speed transmission’s detent bores and caps. Hassle-Free Detent Replacement: Simplifies the process of removing and installing detents with professional-grade precision. Protects Your Investment: Reduces the risk of damaging internal transmission components during service. Durable Construction: Made from heavy-duty 1045 steel for exceptional strength and long-lasting reliability.

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Turner Titanium Magnetic Manual Transmission Drain Plug - Priced Each...
Fill and drain plug for vehicles with transmission code GS5X37BZ and production date fr... For vehicles with production date from 03/2003
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For vehicles with manual transmission only
Turner Motorsport - Corporate Logo
T#:638297
Part#: 005976LA01
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This is a must-have for ALL BMWs, and simply installs in place of your existing drain plug. With every fluid change you perform on your BMW, you'll be able to inspect for metal shavings and debris. Many times, if something is going wrong on your BMW's tranmission, the magnetic drain plug can give you an early warning. Replaces genuine BMW transmission drain plug with gasket ring:23117531356
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Turner Motorsport Solid Aluminum Transmission Mount Set - E34 E36 E39...
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Turner Motorsport - Corporate Logo
T#:397210
Part#: 017730TMS03
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If allowed in the rules these solid aluminum transmission mounts offer many advantages over a urethane or Delrin mounts. It's no wonder that these mounts have found their way into the top BMW racers in the country. These are machined from solid aluminum and have zero deflection, engine torque will cause a rubber or urethane mount to flex or deflect allowing more torque to passed through the drive line (instead of being wasted winding up the mount). This puts the shift linkages in better consistent alignment. And unlike rubber or urethane the aluminum has zero wear and is not affected by leaking oil or other fluids so this is likely the last set of transmission mounts you will ever need. We very strongly recommend using the solid transmission and engine mounts together as a complete kit, mixing a rubber mount with a metal mount will cause undue stress on the mounting points and will lead to a failure. We never advise using a solid mount unless a corresponding solid mount is also used.

These are a no-compromise design for all-out racing use, full solid aluminum mounts should not be used on street-driven cars since there is no material to absorb vibration making these quite harsh for regular street use (track cars don't care about noise).

Product features and benefits:

  • Crisper throttle response, positive shifter location, direct power transfer
  • Precision machined billet 6061-T6 aluminum housing
  • Grade 10.9 stud - fear not, big turbo owners
  • Engineered in-house and made in America

This item fits the following BMWs: 
1989-1995  E34 BMW  525i 530i 535i 540i M5 
1992-1998  E36 BMW  318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1997-2003  E39 BMW  525i 528i 530i 540i M5 
1999-2005  E46 BMW  323i 323ci 325i 325ci 328i 328ci 330i 330ci M3 
2008-2012  E82 BMW  128i 135i 1M Coupe 
2006-2011  E90 BMW  325i 328i 330i 335d 335i - Sedan 
2006-2012  E91 BMW  328i - Wagon 
2007-2013  E92 BMW  328i 335i 335is - Coupe 
2007-2013  E93 BMW  328i 335i - Convertible 
1997-2002  Z3 BMW  Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe ​

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CSL SMG Expansion Tank Bracket
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Turner Motorsport - Corporate Logo
T#:19395617
Part#: 049798LA01
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Used when retrofitting an OEM or aftermarket CSL intake on a vehicle with SMG transmission.

Its no secret the CSL intake plenum is the pivotal upgrade for your S54. If you are fortunate enough to have an SMG equipped vehicle you are going to need a bracket to relocate the expansion tank. Our Turner motorsport bracket fits perfectly with the engine bay to facilitate the installation of your genuine or Turner branded CSL intake plenum.

Design:

Direct fit, perfect OEM replacement
304SS sheet metal design, engineered to be simpler and cheaper than its formed OE counterpart
Reverse engineered with FARO laser scanning and Solidworks CAD technology

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Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench ...
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Bav Auto Tools - Corporate Logo
T#:580353
Part#: B8800025
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The proper size for removing BMW drain plugs.
M24x1.5mm Magnetic Drain/Fill Plug - Each M44 M52 M54 S54 Engine ...
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ECS - Corporate Logo
T#:583896
Part#: 000920ECS01
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$ 32.24 USD
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Ensure the longevity of your BMW's drivetrain with ECS Tuning's Magnetic Plugs. These plugs are meticulously engineered in-house to provide a perfect fit and feature a permanent magnet attached to the plug body. The magnet effectively attracts and captures tiny abrasive and ferrous metal particles, preventing their circulation through lubrication systems. Metal particles can accumulate due to various conditions such as normal wear, machining operations, casting flaws, and stress usage, leading to excessive wear of vital components. ECS Tuning's Magnetic Plugs help alleviate this concern by trapping these particles, thus safeguarding the internal components of your drivetrain. With a convenient 17mm hex head design, these plugs eliminate the need for special tools required for OEM plugs.

Key Benefits:

  • Removes abrasive metal particles from drivetrain fluid
  • Prevents excessive wear to internal components
  • Meticulously engineered for a perfect fit
  • Features a permanent magnet for efficient particle capture
  • Convenient 17mm hex head design for easy installation
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034 Density Line Performance Transmission Mount Set
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034Motorsport - Corporate Logo
T#:389755
Part#: 034-509-4050-SD
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Upgrade Your BMW's Performance and Comfort with 034Motorsport's Density Line Mounts

Experience enhanced performance and comfort with 034Motorsport's Density Line Mounts, exclusively available at ECS Tuning for purchase and shipment within the United States. Crafted from high-durometer rubber, these mounts offer increased durability and performance without compromising on comfort. Engineered as an optimal solution compared to harsh polyurethane mounts, they provide improved drivetrain responsiveness and crisper shifting without significant noise or vibration in the cabin.

Key Benefits:

  • Manufactured from high-durometer 60 Durometer Rubber
  • Reduces drivetrain slop for enhanced performance
  • Provides crisper shifting and more direct power transfer
  • Minimal increase in noise, vibration, or harshness (NVH)
  • Complete drop-in replacement for factory transmission mounts
  • Ideal for use alongside upgraded engine mounts
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ZF 5-Speed Detent Repair Kit With Installation Tools - S5D320Z Transm...
For vehicles with production date up to 03/2003 or ZF S5D320Z transmission
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Packaged by Turner - Corporate Logo
T#:37453570
Part#: 054834LA01KT
In Stock
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The ZF 320z S5D is a common swap choice among BMW enthusiasts due to its reliable and robust nature. Unfortunately, it does have a weakness. The detent pins and springs that live inside of the transmission are known to wear down over time, often causing the shift lever to lean towards the 5th gear position when in neutral.

This full-service kit consists of everything you need to replace the failing detents in your ZF transmission. The kit contains only Genuine ZF components, all of which are sure to provide you with smooth shifting and operation for years to come.

This kit includes the following items:

3 Shift Pin Kits - 23117525048
2 Slide Bushings - 23117533395
2 Gearbox sealing lids - 23311224825
1 Shifter detent pin - 23311224849
1 Shifter detent pin - 23317502165
2 Lock Rings - 23317531374
3 Spring Retention Plates - 23317637524
5 Detent Drift/Punch Tools - 054834LA01AKT
Remedying the ZF's detent issue is a must for any enthusiast planning to get the most out of their transmission. Proper centering is essential for quick and smooth shifting, both being desirable features in any application. This kit is easy to install with several DIY guides existing online. A set of "drift" tools are included for proper installation.

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Genuine BMW Gear Identification Switch - E39 M5, E46 M3, Z8
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Genuine BMW - Corporate Logo
T#:13248
Part#: 23142229113
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 113.69 USD
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Genuine BMW Gear Identification Switch
This item fits the following BMW Chassis:
E39 M5,E46 M3,E39,E46


ECS Urethane Transmission Mounts
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ECS - Corporate Logo
T#:388091
Part#: 002705ECS
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A sloppy shifter is one of the common complaints of older BMWs. In addition to the shifter linkage the transmission mounts contribute to rough and clunky shifting. BMW transmission mounts are rubber and get softer over time. This allows the transmission to dance around which changes the geometry of the shift linkage and could make it harder to shift. These urethane transmission bushings are stiffer than the stock rubber mounts and won't let the transmission shift around as much. The round design also has more surface area than the stock mounts which helps spread the load. Because the urethane is stiffer, expect more vibration to make its way into the shift lever area. Engine motor mounts should also be considered as a cause for driveline vibration, transmission movement, and poor shifting. Consider replacing your motor mounts at the same time as your tranny mounts.

Price is for the pair of transmission mounts with hardware.

This item fits the following BMWs: 
1989-1995  E34 BMW  525i 530i 535i 540i M5 
1992-1998  E36 BMW  318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1997-2003  E39 BMW  525i 528i 530i 540i M5 
1999-2005  E46 BMW  323i 323ci 325i 325ci 328i 328ci 330i 330ci M3 
2008-2012  E82 BMW  128i 135i 1M Coupe 
2006-2011  E90 BMW  325i 328i 330i 335d 335i - Sedan 
2006-2012  E91 BMW  328i - Wagon 
2007-2013  E92 BMW  328i 335i 335is - Coupe 
2007-2013  E93 BMW  328i 335i - Convertible 
1997-2002  Z3 BMW  Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe 

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ECS Aluminum Magnetic Manual Transmission Drain Plug - Priced Each (M...
Fill and drain plug for vehicles with transmission code GS5X37BZ and production date fr... For vehicles with production date from 03/2003
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission only
ECS - Corporate Logo
T#:638794
Part#: 005960LA01
In Stock
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This product was last offered at the strikethrough price on
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$ 39.99 USD
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This is a must-have for ALL BMWs, and simply installs in place of your existing drain plug. With every fluid change you perform on your BMW, you'll be able to inspect for metal shavings and debris. Many times, if something is going wrong on your BMW's transmission, the magnetic drain plug can give you an early warning. Replaces genuine BMW transmission drain plug with gasket ring:23117531356
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Genuine BMW Gear Position Sensor - E46, E63, E85
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Genuine BMW - Corporate Logo
T#:50832
Part#: 23427507168
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 457.99 USD
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Used on the SMG transmissions, on the hydraulic unit used for gear selection. A common sign of gear position sensor failure is 2nd to 3rd gear shifts become delayed. If the sensor has failed completely it as been known to skip gears, ex.- 2nd - 5th.

Genuine BMW Selection Sensor -
This item fits the following BMW Chassis:
E46,E63,E85

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Genuine BMW Transmission Cooling Hose
For vehicles with transmission A5S325Z only, and production date from 03/2000 For vehicles with transmission A5S325Z only, and production date up to 03/2003 For sedan models with transmission A5S325Z and production date up to 03/2002. For touri...
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Genuine BMW - Corporate Logo
T#:46936
Part#: 17227577672
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$ 118.36 USD
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Genuine BMW Oil Cooling Pipe Outlet - A5S 325Z
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52,M54,M56

Genuine BMW Automatic Transmission Fluid - ATF 1
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Genuine BMW - Corporate Logo
T#:192077
Part#: 83222305395
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Genuine BMW Atf 1 - 1L
This item fits the following BMW Chassis:
E36,E39,E46

Genuine BMW Output Shaft Seal
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Genuine BMW - Corporate Logo
T#:360771
Part#: 23121222769
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 112.92 USD
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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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Bavarian Autosport - Corporate Logo
T#:639803
Part#: 24341423376
Ships on Aug 24, 2026
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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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Plug-In Connection Bracket
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Genuine BMW - Corporate Logo
T#:30058
Part#: 07149157161
Ships in 3 Business Days
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$ 3.32 USD
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Genuine BMW Plug-In Connection Bracket
This item fits the following BMW Chassis:
E36 M3,E60 M5,E63 M6,E46 M3,E85 Z4M,E53 48IS,E36,E39,E46,E53 X5 X5,E63,E83 X3,E85 Z4,E86 Z4,E90,E92,E93

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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...
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Bavarian Autosport - Corporate Logo
T#:22690760
Part#: 24117552349
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Fits various BMW Transmissions. Includes rubber sealing washer/o-ring.

Genuine BMW Screw Plug M14X1,5 - 24117507555 - E39,E46,E85
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Genuine BMW - Corporate Logo
T#:51370
Part#: 24117507555
Ships in 3 Business Days
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Genuine BMW Screw Plug - M14X1,5
This item fits the following BMW Chassis:
E39,E46,E85

Genuine BMW CSL SMG Expansion Tank Bracket - 41147896136 - E46 M3 CSL...
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Genuine European BMW - Corporate Logo
T#:361538
Part#: 41147896136
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When you upgrade to the CSL intake, you have to replace and relocate the SMG reservoir. This bracket mount the new reservoir after the CSL conversion exactly as designed by BMW.

Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission ...
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Bav Auto Tools - Corporate Logo
T#:580447
Part#: B8800142
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Makes changing your transmission fluid an easy task. 1/2 " drive, for use in BMWs with 17mm female allen transmission drain plugs.

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02
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Bavarian Autosport - Corporate Logo
T#:639833
Part#: 13621433076
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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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