Removing and installing gas discharge bulb control unit J343/J344 - from model year 2013 onwards — AUDI
Removing and installing gas discharge bulb control unit J343/J344 - from model year 2013 onwards on Audi: 10 steps.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi Q5 (8R, 2008–2017); platform code 83
Don't miss
- Do not flash the headlights.
📋 Procedure
- ⚠ 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. — Turn light switch to position "“0”".
- Switch off ignition and all electrical equipment and remove ignition key.
- Do not flash the headlights.
- Right-side: Remove air cleaner housing 23Air cleaner; Removing and installing air cleaner housing or 24Air cleaner; Removing and installing air cleaner housing.
- Remove bolts (arrows).
- Detach control unit (4) from headlight housing.
- Disconnect adapter cable (2) and electrical connector (3).
- Detach control unit.
- Check seal (1) between control unit and headlight housing for damage.
- Right-side: Install air cleaner housing 23Air cleaner; Removing and installing air cleaner housing or 24Air cleaner; Removing and installing air cleaner housing.
Other AUDI procedures
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
- Removing and installing coolant pipe (rear) - engine code letters BDG, BDH
- Removing and installing control unit for gas discharge lamp - vehicles from approx. 09.2001
- Removing and installing adapter cable for gas discharge lamp control unit
- Removing air cleaner housing - vehicles with 4.2 ltr. FSI engine, Audi RS 4
- 5-speed manual gearbox 01A, four-wheel drive — Removing and installing gearbox mounting
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.