1994 BMW 850CSiFACTORY OEM SERVICE PROCEDURE

Automatic Stability Control (ASC)

Wheel spin of the drive wheels is signalled by the wheel sensors to the ABS control unit. As a result, the EML control unit is instructed to reduce the throttle opening. If the wheel spin is still too high, the DME control unit is instructed to shift the ignition timing toward the retard direction. The ASC is integrated in the ABS control unit. It operates in conjunction with DME and EML.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.

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