Removing and installing charge air coolers (left and right) — AUDI
Removing and installing charge air coolers (left and right) on Audi: 13 steps, engines ASB, BGB, BMK, BNG.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A4 Cabriolet B6/B7 (8H), Audi A4 B6/B7 (8E)
Don't miss
- The air conditioner refrigerant circuit must not be opened. — Disengage refrigerant line (4) at bracket.
- Hose connections and hoses for charge air system must be free of oil and grease before assembly.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.
📐 20 workshop diagrams for ASB
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Vehicles with auxiliary heater: remove bolts (arrows) securing exhaust pipe for auxiliary/additional heater to noise insulation.
- Release quick-release fasteners (1) and (2) and take off front noise insulation.
- If fitted, open quick-release fasteners (3) and remove rear noise insulation.
- Remove front bumper cover General body repairs, exterior63.
- Remove headlights (left/right) Electrical system94.
- Remove air duct in front of charge air cooler (left/right) (arrows).
- Unplug electrical connector (3) at charge pressure sender G31.
- ⚠ The air conditioner refrigerant circuit must not be opened. — Disengage refrigerant line (4) at bracket.
- Open hose clips (1) and (2) and disconnect air intake hoses.
- Detach charge air cooler by pulling upwards. [Note: Hose connections and hoses for charge air system must be free of oil and grease before assembly.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.]
- Install headlight Electrical system94
- Install front bumper cover General body repairs, exterior63.
- Check headlight adjustment 803.
Ask TorqFix about your Audi ASB — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.
Ask about your Audi ASB — free → or sign up free to see the drawingsOther AUDI procedures
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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.