SMG Hydraulic Pump with Pressure Accumulator Upgrade (Rebuilt) - E46 M3

SMG pump with new motor and better accumulator rebuilt by SMG experts

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Currently sold out. Please contact us for an ETA to discuss SMG rebuild options.



This part is listed by BMW as BMW part number 21532229715 (21-53-2-229-715) and is described as a rebuilt SMG Hydraulic Pump with a Pressure Accumulator upgrade for E46 M3.

The SMG pump on the SMG (sequential manual gearbox) equipped E46 M3 is a very well known failure point. It's really not a question of IF your SMG pump will suffer a failure, but when. Typically, the SMG pump lasts somewhere in the neighborhood of 100k miles, but they have been known to fail with much less miles.

This is a rebuilt SMG pump with a new electric motor. The assembly has been rebuilt MLR Engineering - experts in SMG and hydraulic pumps with over 30 years of experience and their own tried and proven solutions to SMG problems.

MLR SMG rebuild includes:
+ Pump fully disassembled and cleaned
+ All components are tested
+ New seals are applied
+ New MLR electric motor is installed (improved design)
+ New temperature sensor
+ Upgraded MLR Accumulator with HD internals
+ Bench tested for pressure build, relief capability and ability to hold high pressure to specification
+ New SMG relay
+ New 40A SMG fuse
+ 1 year warranty

Line Color Coding (for reinstall):
A = Blue, Shift Travel Forward
B = Yellow, Clutch Slave Cylinder
C = Green, Selection Angle Sensor
D = Black, Shift Travel Back

This Genuine BMW SMG pump fits all SMG-II (SMG2) equipped E46 M3 coupe and convertibles, including 2001, 2002, 2003, 2004, 2005 and 2006 model M3.

A core charge applies to this purchase. The $450 core charge is included in the price shown. The supply of original parts for rebuilding keeps the final purchase price low. The core must match the part that was supplied in terms of fitment, type, application, accessories, and hardware. Damaged or modified cores will not receive a refund. A core charge can only be refunded once the core has been inspected and approved. Click here for our Core Policy.

This rebuilt pump is compatible with BMW part numbers 21532229715, 21532282257, 21532282364, 31212634120.

BMW Fitments:

3 Series
E46 (01-06) > M3
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