Service Precautions

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 1991 BMW M5, 1991 BMW 535i, 1991 BMW 525i, 1991 BMW 325iX, and 1991 BMW 325i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Observe these precautions when working on air bag systems:

When working around steering column and before any repairs are performed, disable SRS. See DISABLING & ACTIVATING AIR BAG SYSTEM.
Before performing any body damage straightening procedures or electrical arc-welding, disable the SRS. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM . Disconnect the front sensors.
Wait about 5 minutes after disabling SRS. System maintains SRS voltage for about 5 minutes after system is disabled. Servicing SRS before 5-minute period may cause accidental air bag deployment and possible personal injury.
Always wear safety glasses and gloves when handling a deployed air bag module. Air bag module may contain sodium hydroxide deposits, which are irritating to the skin.
Always use caution when handling any sensors. Never strike or jar sensors. All sensors and mounting bracket bolts must be torqued to specification to ensure proper sensor operation. See the TORQUE SPECIFICATIONS .
Never use any SRS component that has been dropped from 3 feet or higher.
To avoid air bag deployment when trouble shooting SRS, DO NOT use self-powered electrical test equipment, such as battery- powered or AC-powered voltmeter, ohmmeter, etc. No repairs should be performed on any portion of SRS wiring circuit.
Always handle air bag module with trim cover away from your body. Always place air bag module on workbench with trim cover up, away from loose objects.
Never expose SRS components to temperatures in excess of 212°F (100°C).
Never expose any SRS system components to cleaning agents such as solvents, gasoline, lye, etc.