Removing and installing mechanical exhaust gas recirculation valve — AUDI
Removing and installing mechanical exhaust gas recirculation valve on Audi: 19 steps, engines AFB, AKE, AKN, ASB.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A3 (8P, 2003–2012)
- Renewed: gaskets
Don't miss
- Renew gaskets and seals.Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic parts catalogue.
📐 60 workshop diagrams for AFB
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Pull dipstick (1) out of guide tube.
- Lift engine cover panel at sides (arrows 2) and pull off towards front (arrow 3).
- Re-insert dipstick in guide tube.
- Lift off engine cover panel (outside (1) and inside (2)) by pulling up evenly.
- Remove engine compartment seal from lock carrier and wing panel flanges.
- Pull cover off air duct (release clips on sides) (arrows).
- Unclip air duct at the bottom by releasing clips (arrows).
- Detach air duct (bottom) together with air hose.
- Unplug electrical connector (1) at air mass meter G70.
- Detach vent hose (3) and air hose (2).
- Unscrew bolt (4) and remove air cleaner housing.
- Unscrew retaining lug for connecting pipe (arrow).
- Remove bolts (5).
- Detach electrical connector (6) at intake manifold flap motor V157.
- Disconnect vacuum hose (3) from mechanical exhaust gas recirculation valve.
- Detach front air intake hose from intake manifold flap motor V157 by lifting retaining clip (1) slightly.
- Remove bolts (2) and (4) and detach intake manifold flap motor V157 together with mechanical exhaust gas recirculation valve.
- Unbolt intake manifold flap motor V157 from mechanical exhaust gas recirculation valve. [Note: Renew gaskets and seals. Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic parts catalogue.]
- Adhere to the instructions for installing air pipes and hoses with plug-in connectors (see the separate procedure).
Ask TorqFix about your Audi AFB — 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 AFB — 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 → · How these pages are made →Workshop data on this page last updated 20 Sep 2026.