audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Hydraulic unit, brake servo/brake master cylinder - assembly overview - 3 litre > < Removing and installing brake pressure sender from brake master cylinder.
Brake System
Component overview, ABS/ESP Mark 20
Adjusting brake light switch

Removing and installing

Remove brake light switch to adjust.

  • ‒ Unplug connector from brake light switch.
  • ‒ Remove brake light switch by turning through 90°-clockwise.
  • ‒ Pull brake light switch plunger fully out.
  • ‒ Press brake pedal down as far as possible by hand.
  • ‒ Guide brake light switch through assembly opening and re-install by turning 90°-anti-clockwise.
  • ‒ Release brake pedal.
  • ‒ Plug in connector for brake light switch.
  • ‒ Operate brake pedal.

=>Brake lights light up.

  • ‒ Take foot off brake pedal.

=>Brake lights must not light up.

Hydraulic unit, brake servo/brake master cylinder - assembly overview - 3 litre > < Removing and installing brake pressure sender from brake master cylinder.