Pressure Sensor BMW E46 M3 SMG II
incl. 19% VAT plus Shipping Costs
The pressure sensor is located on the hydraulic unit of the M3 SMG II and measures the pressure of the hydraulic fluid.
- Compatible vehicles: BMW E46 M3
- Condition: New
- Reference numbers: BMW 21532229715, 21532282257
Wiring Harness for Relocation Kit BMW E46 M3 SMG II
Time to solve your SMG problems once and for all! With the Relocation Kit you can relocate the SMG hydraulic unit – away from the engine to the passenger side's 'drug bin'.
This offer includes a 170cm long wiring harness extension, equipped with the original plugs, automotive cables and conduit. The additional hydraulic hoses are available here.
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.
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.
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