Removing and installing humidity sender G355 - vehicles with main beam assist — AUDI
Removing and installing humidity sender G355 - vehicles with main beam assist on Audi: 10 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 A5 (8T, 2007–2016), Audi Q5 (8R, 2008–2017), Audi A5 Cabriolet (8F), Audi A4 B8 (8K, 2007–2015); platform code 83
📋 Procedure
- ⚠ Safety hazard: the engine can start unexpectedly.Before carrying out general work on a vehicle with high-voltage electrical system, switch off the ignition and remove the ignition key from the vehicle. — Remove interior mirror General body repairs, interior68Interior mirror; Removing and installing interior mirror.
- Release retaining tabs (1) and (2) with a screwdriver (3).
- Disengage cover (4) at rear.
- Release retaining tabs (arrows) and carefully fold cover (2) upwards slightly at top.
- Disengage retaining tab (1) on cover (3) at front.
- Detach cover at top.
- Disengage retaining hooks in direction of (arrows) and pull cover (2) downwards at front out of guide elements at interior mirror base (1).
- Release retaining clips (2)(arrows) and detach humidity sender G355(item 4) from interior mirror base (1).
- Unplug electrical connector (3).
- Install interior mirror General body repairs, interior68Interior mirror; Removing and installing interior mirror.
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
- Renewing valve stem oil seals with cylinder head installed
- Installing windscreen – Audi A8 D4
- Connecting the adapter wiring harness at TV tuner R78 · 1 torque figures
- Removing and installing suction-jet pump – Audi Q3
- Removing and installing ABS control unit J104/ABS hydraulic unit N55 · 1 torque figures
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.