Renewing gas discharge lamp: Audi A4 B5
Step-by-step renewing gas discharge lamp for the Audi A4 B5: 14 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.
🧭 Before you start
Fits: Audi A4 B5 (8D)
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- Always disconnect the battery earth strap before working on parts of the gas discharge headlights marked with yellow high-voltage warning symbols. — With ignition switched off, disconnect earth cable at battery .
- Note correct installation position: lug at top of bulb holder must engage in recess of gas discharge lamp.
📋 Procedure
- ⚠ Always disconnect the battery earth strap before working on parts of the gas discharge headlights marked with yellow high-voltage warning symbols. — With ignition switched off, disconnect earth cable at battery .
- Remove cover (arrow) from power steering reservoir.
- Detach cover (right-side) (arrow) in engine compartment.
- Unscrew bolts (arrows).
- Remove air ducts (1) and (2).
- Release retaining clip (2) and detach housing cover (1) from headlight housing.
- Remove connector (1) for gas-discharge lamp by turning anti-clockwise (arrow).
- Disengage retaining clip (2) and (3).
- Pull gas-discharge lamp (1) out of headlight housing.
- Insert new gas discharge lamp in headlight housing; do not touch glass part of bulb with bare hands. [Note: Note correct installation position: lug at top of bulb holder must engage in recess of gas discharge lamp.]
- Secure gas discharge lamp with retaining clip.
- Re-attach connector.
- Close housing cover and secure with retaining clip.
- Connect battery. Additional steps required .
Other AUDI procedures
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- Removing and installing brake pads (PR 1LT) – Audi A6 C6 · 1 torque figures
- Renewing flange shaft oil seals on Audi A8
- Removing and installing selector lever cable (vehicles from 11.2005 onwards)
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- Checking ATF level - vehicles with 12-cylinder engine – Audi
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
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.