2012 BMW 528iFACTORY OEM SERVICE PROCEDURE

41 00... Handling Electrical System And Electronics

  1. 1.0 Battery 
    • Explosion hazard in the vicinity of the battery during welding and grinding work. The battery must be REMOVED .
  2. 2.0 Control units 
    • Control units with visible mechanical damages and/or electrical damages caused by accidents must be replaced.
    • The following risks exist when the battery is connected:
      • Damage to control units resulting from welding work on the body or a line short circuit.
      • Accidental activation of airbags during straightening work on the body.

    Because of these risks the ground cable must be DISCONNECTED prior to all repair work.

    • Control units are designed for a temperature of 65 °C. The temperatures in a spray booth do not pose any problems. If a vehicle is in the spray booth at a displayed temperature of 80°C, the actual temperature of the vehicle is ≤ 60 °C (object temperature).
    • Protect control units against the influence of heat >65 °C (e.g. during welding and drying work with infrared beams or hot air blowers).
  3. 3.0 Electrical wires and wiring harnesses 
    • Protect electrical wires and wiring harnesses against damage (e.g. during straightening and grinding work).
    • Protect electrical wiring and wiring harnesses against the influence of heat >65 ° C (e.g. during welding and drying work with infrared beams or hot air blowers).
    • Do not kink electrical wiring.
  4. 4.0 Optical fibres 
Factory Service Tools

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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.

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