Disabling System (SC300 & SC400)

1999 BMW 328i 2D Convertible, AutomaticSECTION Disabling System (SC300 & SC400)
  1. Obtain radio anti-theft protection code from vehicle owner and record preset radio frequencies before disconnecting battery.
  2. Place front wheels in straight-ahead position. Turn ignition switch to LOCK position. Disconnect and shield negative battery cable. Wait at least 90 SECONDS before working on vehicle.
  3. Disconnect driver-side air bag module connector located under steering column, near combination switch. Air bag connector terminals are automatically shorted together. See Figure and Figure .
  4. Open glove box. Remove passenger-side air bag connector cover from inside glove box. Disconnect passenger-side air bag connector. Air bag connector terminals are automatically shorted together. See Figure and Figure .
RENDER: 1.0x

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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.