SMG Components for BMW E46 M3 S54 (1999-2005)

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The sequential manual transmission is an excellent gearbox that provides lightning-fast shifts and manual control. Due to the cutting edge design and awsome performance it allows, certain components may need to be serviced from time to time.
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CSL SMG Expansion Tank Bracket
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:19395617
Part#: 049798LA01
In Stock
Sale - Save 71% $ 33.99

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

$ 10.00 USD
Free Shipping on orders $49 and up
Sale - Save 71%
$ 33.99

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

$ 10.00 USD
Free Shipping on orders $49 and up

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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Genuine BMW CSL SMG Expansion Tank - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine European BMW - Corporate Logo
T#:383934
Part#: 21532282549
Ships on Oct 9, 2026
$ 224.99 USD
Free Shipping
$ 224.99 USD
Free Shipping
This is required when installing a CSL airbox on an M3 with an SMG transmission. The expansion tank holds the hydraulic fluid for the SMG clutch cylinder.
Genuine BMW SMG Shifter Detent Kit - E46 M3 W/ SMG Transmission ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:637266
Part#: S6S420G-SMGKT
Ships in 1-2 days
$ 344.99 USD
Free Shipping
$ 344.99 USD
Free Shipping
Have you noticed your BMW having trouble getting into gear? Refresh your BMW's entire shifter detent system with this all-in-one kit! Over time shifter springs can wear out, the locking pin and 8mm ball can become damaged, and excess play allows for the transmission to potentially come out of gear. By replacing the springs, locking pin, and plugs, this excess play is effectively eliminated, helping to keep your BMW in the proper gear!
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SMG Hydraulic Pump with Pressure Accumulator - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:5388
Part#: 21532229715
Ships in 8 Business Days
9% off MSRP $ 8,430.68

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 7,672.93 USD
Free Shipping
9% off MSRP
$ 8,430.68

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 7,672.93 USD
Free Shipping
This hydraulic unit includes the pump and pressure accumulator for the SMG transmission on E46 M3. It helps to maintain pressure in the system for proper shifting. A faulty unit can cause delays in shifting or a failure to engage any gears.

This item fits the following BMWs:
2001-2006 E46 BMW M3, M3 Convertible
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Genuine BMW CSL SMG Expansion Tank Bracket - 41147896136 - E46 M3 CSL...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine European BMW - Corporate Logo
T#:361538
Part#: 41147896136
In Stock
Sale - Save 39% $ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 18.29 USD
Free Shipping on orders $49 and up
Sale - Save 39%
$ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 18.29 USD
Free Shipping on orders $49 and up
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.