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.
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HOMESERVICE MANUALSBMW2011750LXI 4.4 CREPAIR AND DIAGNOSISRESTRAINTSRESTRAINTS CONTROL SYSTEMSPASSIVE SAFETY SYSTEMS -- OVERVIEWSYSTEM OVERVIEWACSM3 SYSTEM CIRCUIT DIAGRAM
2011 BMW 750Lxi 4.4 C
ACSM3 System Circuit Diagram
2011 BMW 750Lxi 4.4 CSECTION ACSM3 System Circuit Diagram
INDEX CHART
| Index | Explanation |
|---|---|
| 1 | Central gateway module |
| 2 | Up-Front sensor, left |
| 3 | Instrument cluster |
| 4 | Car Access System |
| 5 | Crash safety module |
| 6 | Up-Front sensor, right |
| 7 | Door pressure sensor, left |
| 8 | Front airbag, driver |
| 9 | Coil spring for airbag |
| 10 | Knee airbag, driver |
| 11 | Passenger Airbag OFF light |
| 12 | Knee airbag, passenger |
| 13 | Front airbag, passenger |
| 14 | Door pressure sensor, right |
| 15 | Head airbag, left |
| 16 | B-pillar sensor, left |
| 17 | Adaptive belt force limiter, driver |
| 18 | Belt contact, driver |
| 19 | Seat belt pretensioner, driver |
| 20 | Side airbag, driver's side |
| 21 | Active head restraint, driver |
| 22 | Central sensor with rollover detection |
| 23 | Belt contact, passenger |
| 24 | Seat belt pretensioner, front passenger |
| 25 | OC3 mat |
| 26 | Active head restraint, passenger |
| 27 | Side airbag, passenger side |
| 28 | Head airbag, right |
| 29 | B-pillar sensor, right |
| 30 | Adaptive belt force limiter, passenger |
| 31 | Telematics Control Unit for emergency call |
| 32 | Safety battery terminal |
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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.