Compression Spring BMW E46 M3 SMG II
5,04 €
plus Shipping Costs
A broken compression spring can cause problems with the gear selection or adaption process.
- Compatible vehicles: BMW E46 M3
In stock
Related Products

Transmission Speed Sensor BMW E46 M3 SMG II
This sensor provides the speed signal of the transmission input shaft. The speed signal is required by the SMG control unit to control the transmission system, adjusting properly the shaft speeds before engaging and disengaging the different gears.

Pump Reservoir Seal BMW E46 M3 SMG II
New seal for the hydraulic pump plastic reservoir. The seal meets the requirements for use in the SMG hydraulic system.

Solenoid Valve Seal Kit BMW E46 M3 SMG II
- Seal kit for the solenoid valve of M3 SMG II
- Fits all of the four solenoid valves
- This kit is for one single valve

Pump Relay BMW E46 M3 SMG II
The pump relay is responsible to turn on / off the hydraulic pump of the SMG system. A broken relay causes the pump to fail priming. Without hydraulic pressure, the system cannot engage the clutch or change gears.
Pictures shown are for illustration purpose only. The relay supplied may have a different color.

Aluminium Shift Paddles BMW E46 M3 SMG II
These extended length aluminium shift paddles make gear changing easier and give the interior a more sporty and modern look.

Hydraulic Unit Pump Motor BMW E46 M3 SMG II
The pump supplies the hydraulic pressure for the different consumers (actuators) of the SMG and stores it in the pressure accumulator. The pump consists of a gear pump and the powering electric motor. Due to its location in a high temperature area, the motor suffers often from damage and is a common problem. Especially on hot days the car can drop out of gear or show the gearbox warning light (SMG cog light). Often the following codes appear in the error memory:
- 56 (0x38) Switching-on time of hydraulic unit
- 53 (0x35) low level of pressure reached HE
- 57 (0x39) Misuse of hydraulic unit
- 55 (0x37) Switching-on frequency of hydraulic unit
No worry – here is a solution for these problems!
We provide a new motor for the pump as a solution for various problems with the BMW M3 SMG II. The motor meets highest expectations of quality and enables a sporty style of driving with frequent shifting. Of course, the motor comes with a 12 month warranty.
The old motor can be replaced by the new one “plug&play“. The replacement motor is already equipped with the required pins and can be directly connected to the original wiring harness. For removing the old motor, you may need a release tool.

Control Unit M3 SMG II
The transmission control unit (ECU / TCU) is the main computer responsible for the control of the M3 SMG II.

Repair Kit Valve Plugs BMW E46 M3 SMG II
- New plugs for M3 SMG II solenoid valves
- Including cable and pins
- Ready for assembly
Your wanted part is not listed in the shop? Maybe we can repair it. Have a look at our repairs section!