TorqFix

Removing and installing headlight: Audi A6 C5

Step-by-step removing and installing headlight for the Audi A6 C5: 16 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.

16 steps

🧭 Before you start

Fits: Audi A6 C5 (4B)

  • Also covered elsewhere: Electrical system general information94

Don't miss

  • Use a magnet if necessary for detaching the bolt.
  • Pay attention to the area at the wing opening when aligning the headlight.

📋 Procedure

  1. ⚠ Danger of fatal injury from high voltageFor gas discharge lamp usage and safety instructions, refer to Electrical system general information94. — With ignition switched off, disconnect earth wire at battery:
  2. Remove the front bumper 63.
  3. Screw out bolts (1).
  4. Guide a long spanner (3) through the recess and screw out securing bolt at bottom of headlight housing (2). [Note: Use a magnet if necessary for detaching the bolt.]
  5. Turn outer edge of headlight inwards behind wing (arrow 1) and pull headlight out of pin in centre area of vehicle (arrow 2).
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Unplug connector.
  2. Detach headlight.
  3. Measure and note down dimension (a) between plastic bolt and headlight housing on old headlight.
  4. On new headlight, set plastic bolt with respect to headlight housing in line with dimension (a) noted down.
  5. Insert outer edge of headlight on inner side behind wing (arrow 1).
  6. Insert pivot pin of headlight in guide in centre area of vehicle (arrow 2).
  7. Align headlight with body contours (shut lines). [Note: Pay attention to the area at the wing opening when aligning the headlight.]
  8. Tighten bolts.
  9. Install the front bumper 63.
  10. Connect battery. Action to be taken:
  11. Following installation, adjust headlights 402.

🎬 Video walkthrough

Independent video tutorial by AUTODOC (YouTube) — a helpful visual companion to the steps above.

How to change headlights on AUDI A6 C5 Avant

How to change headlights on AUDI A6 C5 Avant

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.

Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com

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Workshop data on this page last updated 20 Sep 2026.