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 MANUALSBMW1992535I AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONRESTRAINTSAIR BAG DEACTIVATION PROCEDURESNISSANSERVICE PRECAUTIONS
1992 BMW 535i Automatic
Service Precautions
1992 BMW 535i AutomaticSECTION Service Precautions
Observe these precautions when working with air bag systems:
- Disable air bag system before servicing any air bag system or steering column component. See DISABLING & ACTIVATING AIR BAG SYSTEMΒ .
- Wait about 10 minutes after disabling air bag system before servicing. Air bag system voltage is maintained for about 10 minutes after system is disabled. Servicing system before 10-minute period may cause accidental air bag deployment and possible personal injury.
- Air bag will operate only when ignition switch is in ON or START position. Ignition switch should ALWAYS be in LOCK position when working under hood or inside vehicle.
- When servicing vehicle, air bag system and related parts should be pointed away from technician.
- DO NOT use a circuit tester to check air bag harness connectors. The air bag system wiring harness and connectors have Yellow insulation for easy identification.
- DO NOT repair, splice or modify the air bag system wiring harness. If harness is damaged, it MUST be replaced.
- Impact sensors must ALWAYS be installed with arrow marks facing front of vehicle. Also, check sensors for cracks, defects or rust before installation. Replace impact sensor(s) if required.
- Air bag system spiral cable MUST be aligned in the neutral position, since its rotation ability is limited. DO NOT turn steering wheel or column after removal of steering gear.
- Handle air bag module carefully. ALWAYS place air bag module with steering wheel pad facing upward. DO NOT disassemble air bag module.
- After removing air bag components, replace old bolts with new ones. Perform SYSTEM OPERATION CHECKΒ to check air bag system for proper operation.
- DO NOT expose air bag module to temperatures exceeding 212Β°F (100Β°C). DO NOT allow oil, grease or water to contact module.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.