Removing and installing rear heater unit — AUDI
Removing and installing rear heater unit 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: platform codes SF, SG
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- Depending on vehicle equipment, it may be necessary to remove heat shield above the rear silencer to reach securing nuts (1).
- Counterhold threaded bolts using suitable tool (arrow). Then loosen securing nuts with spanner (1).
- Mark installation position of coolant hoses.
- The seal must be bonded without gaps around the heat exchanger.When installing heater unit, first tighten securing nuts (1).After installing, replenish coolant 19Cooling system, coolant.
📋 Procedure
- Place workshop crane drip trayVAS 6208 under vehicle.
- Remove right side panel cladding 70. [Note: Depending on vehicle equipment, it may be necessary to remove heat shield above the rear silencer to reach securing nuts (1).]
- Remove securing nuts (1).
- Counterhold threaded bolts using suitable tool (arrow). Then loosen securing nuts with spanner (1).
- Remove air duct (option) (3) from heater unit.
- Disconnect connectors on heater unit.
- Remove bolts (2).
- Clamp off coolant hoses using hose clamps to 40 mm Ø3093(1). [Note: Mark installation position of coolant hoses.]
- Loosen coolant hoses to second heat exchanger.
- Remove heater from vehicle in (direction of arrow). [Note: The seal must be bonded without gaps around the heat exchanger.When installing heater unit, first tighten securing nuts (1).After installing, replenish coolant 19Cooling system, coolant.]
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
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.