Removing and installing coolant pipe leading to alternator — AUDI
Removing and installing coolant pipe leading to alternator on Audi: 14 steps, engines ASN, BBJ. 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 A8 D3 (4E, 2002–2010)
- Opens: coolant
Don't miss
- Secure brake disc with wheel bolts.
- Shown from rear with engine removed for illustration purposes.
📋 Procedure
- Activate jacking mode Running gear, front-wheel drive and four-wheel drive43Operating the air suspension.
- ⚠ Hot steam or hot coolant can escape when expansion tank is opened; cover filler cap with cloth and open carefully. — Open filler cap on coolant expansion tank.
- Remove front right wheel. [Note: Secure brake disc with wheel bolts.]
- Vehicles with auxiliary heater: remove bolts (arrows) securing exhaust pipe for auxiliary/additional heater to noise insulation.
- Loosen quick release fasteners (1) and (2) and remove noise insulation parts.
- Unbolt bracket for noise insulation (arrows).
- Drain off coolant .
- Remove combination valve for secondary air (right-side) .
- Unscrew bolts (1) and (2).
- Disconnect hoses (arrows).
- Detach coolant pipe. [Note: Shown from rear with engine removed for illustration purposes.] [Note: Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.]
- Install combination valve for secondary air (right-side) .
- Deactivate jacking mode Running gear, front-wheel drive and four-wheel drive43Operating the air suspension.
- Fill cooling system .
Other AUDI procedures
- Removing and installing fuel gauge sender 4 G393 (tubular sender, right-side)
- Checking activation – Audi A4 B5
- Removing and installing flywheel - vehicles with multitronic gearbox 01J
- Removing and installing fuel delivery unit until approx. 11.98
- Checking fuel system pressurisation pump G6 (left-side) - electrical test
- 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.