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.
1993 BMW 740iFACTORY OEM SERVICE PROCEDURE
Control Units/Modules
CONTROL UNITS/MODULES LOCATION
| Component | Location |
|---|---|
| Adaptive Transmission Control Module | Behind right kick panel. |
| Anti-Theft Module (Alpine) | Below left side of dash. |
| Automatic Air Recirculation Control Module | Behind left footwell speaker grille. |
| Automatic Heating & A/C Control Unit | Ahead of heater plenum. |
| Check Control Module | In front power distribution box. See Figure . |
| Chime Module | Under left side of dash, on hush panel. |
| Crash Control Module | In front power distribution box. See Figure . |
| Cruise Control Module | Behind left front speaker. |
| Electronic Shock Absorber Control Module (EDC) | At right side of luggage compartment. |
| Electronic Throttle Control Module (ADS II) | In right kick panel. |
| Electronic Throttle Control Module (EML) | Behind right front shock tower, in E-Box. |
| Engine Control Module (Cylinder 1-6) | Behind right front shock tower, in E-Box. |
| Engine Control Module (Cylinder 7-12) | Behind right front shock tower, in E-Box. |
| Engine Control Module (DME) | Behind right front shock tower, in E-Box. |
| Hazard Flasher Module | In front power distribution box. See Figure . |
| General Module | In rear power distribution box. See Figure . |
| Headlight/Foglight Cleaning System Module | On left side of engine compartment, in auxiliary fuse/relay box. See Figure . |
| Headrest Control Module (Rear) | In rear power distribution box. See Figure . |
| Light Control Module | In front power distribution box. See Figure . |
| Lock Sensor Control Unit | Above left kick panel. |
| On-Board Computer | Right of radio. |
| Relay Module | In rear power distribution box. See Figure . |
| Seat/Mirror/Steering Column Memory Control Module | Under driver seat. |
| Servotronic Control Module | Above left kick panel. |
| Slip Control Module (ABS) | Behind right front shock tower, in E-Box. |
| Slip Control Module (ABS/ASC+T) | Behind right front shock tower, in E-Box. |
| Soft Close Trunk Lid Control Module | At right side of luggage compartment. |
| Sun Blind Control Module | At back of rear window shelf. |
| Supplemental Restraints System Control Module | Behind left side of dash, left of steering column. |
| Transmission Control Module | Behind right kick panel. |
| Wheel Camber Control Unit | Under car, above axle. |
Factory Service Tools
Use the Manual With the Right Hardware
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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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