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 MANUALSBMW1999328I 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONRESTRAINTSAIR BAG DEACTIVATION PROCEDURESVOLVOSERVICE PRECAUTIONS
1999 BMW 328i 4D Sedan, Standard
Service Precautions
1999 BMW 328i 4D Sedan, StandardSECTION Service Precautions
Observe these precautions when working with air bag systems:
- Always disable SRS before performing any air bag repairs. See DISABLING & ACTIVATING AIR BAG SYSTEM .
- Always wear safety glasses and gloves when handling a deployed air bag module and/or seat belt tensioners. Air bag module and/or seat belt tensioners may contain sodium hydroxide deposits, which irritate skin.
- Use caution when handling sensors. Never strike or jar sensors. All sensors and mounting bracket bolts must be tightened carefully to ensure proper sensor operation.
- Never apply power to SRS if any SRS crash sensor is not securely mounted to vehicle.
- Never make any measurement directly on air bag module(s) or seat belt tensioners.
- Remove air bag control module if vehicle repair requires exposing vehicle to temperatures over 176°F (80°C). Never expose air bag system components to hot air or flames.
- Wiring repairs should not be performed on any portion of SRS wiring harness.
- Always handle air bag modules with trim cover away from body. Always place air bag module on workbench with trim cover facing up, away from loose objects.
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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.