Removing and installing operating and display unit (air conditioning system control unit J301 / heater control unit J65) — AUDI
Removing and installing operating and display unit (air conditioning system control unit J301 / heater control unit J65) on Audi: 13 steps, 1 torque.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi Q3 (8U, 2011–2018); platform code 84
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 1.5 Nm (1.1 lb-ft) | Tighten bolts (arrows) |
ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.
📋 Procedure
- Observe general notes .
- Detach trim (1) for operating unit (air conditioning system control unit J301 / heater control unit J65) (arrows).
- Remove bolts (arrows).
- Unplug electrical connector (4).
- Unplug electrical connectors (2, 6) by sliding locking elements (3, 5) upwards and pressing catch.
- Detach operating unit (1) (air conditioning system control unit J301 / heater control unit J65).
- Tighten bolts (arrows) to 1.5 Nm. — 1.5 Nm (1.1 lb-ft)
- When renewing an operating unit (air conditioning system control unit J301 / heater control unit J65), take care to select the correct version Electronic parts catalogue.
- Perform/check coding.
- Perform basic setting.
- Read out event memory (and eliminate the cause of any entries displayed).
- Check adaption.
- Perform final control diagnosis if applicable.
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 oil supply line, single turbo
- Checking fuel delivery rate of fuel system pressurisation pump G6 - vehicles with supplementary fuel pump V393
- Removing and installing front three-point seat belt, Multivan
- Removing and installing front three-point seat belt, Transporter
- Adjusting cab door · 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.