TorqFix

Removing and installing adapter cable for gas discharge lamp control unit — AUDI

Removing and installing adapter cable for gas discharge lamp control unit on Audi: 12 steps. What to remove, in what order, and what to check after.

Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.

12 steps

🧭 Before you start

Fits: Audi A4 B6/B7 (8E)

Don't miss

  • Disregard (item 2).

📋 Procedure

  1. ⚠ High voltage! Danger to life!Ensure that any part of the gas discharge headlights marked with yellow high-voltage warning symbols are de-energised when you are working on them.Switch off ignition and all electrical equipment and remove ignition key.Do not flash the headlights. — Remove headlight .
  2. Remove bolts (1) and (2).
  3. Release retaining clip (3) in direction of (arrow) and detach housing cover from headlight housing.
  4. Unscrew bolts (arrows).
  5. Detach control unit (1) from housing cover for headlight housing.
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Unplug electrical connector (1). [Note: Disregard (item 2).]
  2. Unplug electrical connector (4) at gas discharge lamp.
  3. Remove electrical wires (1) and adapter cable (3) from retainer (2).
  4. Guide adapter cable out of housing cover (5).
  5. Insert adapter cable and electrical wiring in retainer.
  6. Check seal between gas discharge bulb control unit and headlight housing.
  7. Install headlight .

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

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Workshop data on this page last updated 20 Sep 2026.