1987 Audi 5000 CS, AutomaticFACTORY OEM SERVICE PROCEDURE

Speed Sensor

A speed sensor is located next to hub on each axle. A speed sensor rotor is attached to each hub and rotates past the speed sensors. The rotary motion of the wheels is picked up by each sensor and an electrical signal is sent to the ABS control unit.

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.