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.
2003 BMW M5FACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| ABS/ASC Control Module (A52) | Right side of engine compartment. See Figure. |
| ABS/DSC Control Module (A65) | Right side of engine compartment. See Figure. |
| AGS Transmission Control Module | Right rear of engine compartment. |
| Air Suspension Control Unit (A118) | Right side of spare tire. See Figure. |
| Chime Module (H10) | Driver's footwell. See Figure. |
| Electronic Shock Absorber Control Module (EDC) (A80) | Right rear of luggage compartment. See Figure. |
| Engine Control Module (DME) | Left rear of engine compartment. |
| General Module (A1) | Behind glove box. See Figure. |
| Heating And A/C Control Module (A11) | Center console. See Figure. |
| Light Module (A3) | Left kick panel. See Figure. |
| Navigation Control Module (A112) (Sedan) | Left rear of luggage compartment. See Figure. |
| Navigation Control Module (A112) (Wagon) | Left side of luggage compartment. See Figure. |
| RDC Control Module (A85) | Behind glove box. See Figure. |
| Rear Intermittent Wipe/Wash Control Unit (A36) (Wagon) | Liftgate. See Figure. |
| Sunroof Module (A33) | Front of roof. See Figure. |
| Supplemental Restraint System Control Module (A12) | Rear center console. 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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