Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2009 BMW Z4 30i, StandardFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Accelerator Pedal Module (A234a) | On accelerator pedal bracket. See Figure. |
| Active Steering (A467) | Behind left front wheelwell. See Figure. |
| Basic Deployment Control Module (A482) | Right rear of luggage compartment. See Figure. |
| Car Access System (A149a) | Under left side of dash. See Figure. |
| Comfort Access Control Module (A215) | Right rear of luggage compartment. See Figure. |
| Convertible Top Module (A96a) | Right rear of luggage compartment. See Figure. |
| Crash Safety Module (A12a) | Rear of center console. See Figure. |
| DME Control Module (A6000) | Right rear of engine compartment. See Figure. |
| Driver's Seat Heating Module (A187a) | Under driver's seat. See Figure. |
| Driver's Seat Module (A187) | Under driver's seat. See Figure. |
| Dynamic Stability Control (DSC) (A65) | Left side of engine compartment. See Figure. |
| EDC Electronic Damper Control (A80a) | Left rear of engine compartment. See Figure. |
| Electronic Power Steering (EPS) (A60233) | On steering rack assembly. See Figure. |
| Footwell Module (A4011) | Under left side of dash. See Figure. |
| Fuel Pump Control (EKPS) (A13663) | Right side of luggage compartment. See Figure. |
| Independent/Auxiliary Heating Control Module (A14) | Left front of engine compartment. See Figure. |
| Multiple Restraint System Control Module (A12) | Front of center console. See Figure. |
| Navigation System (A112a) | Right rear of luggage compartment. See Figure. |
| Park Distance Control (PDC) (A81a) | Right rear of luggage compartment. See Figure. |
| Parking Brake Control Module (A164a) | Right rear of luggage compartment. See Figure. |
| Passenger's Seat Heating Module (A186a) | Under passenger's seat. See Figure. |
| Tire Pressure Control (RDC) (A85a) | Right rear luggage compartment. See Figure. |
| Tone Sequence Control Module (A409) | Left rear of luggage compartment. See Figure. |
| Transmission Control (A7000a) | On transmission assembly. See Figure. |
| Transmission Control DKG (A70020) | On transmission assembly. See Figure. |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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