Removing and installing catalytic converter - all engine codes except CUKB, CXUA — AUDI

🧭 Before you start

Fits: Audi A3 (8V, 2012–2020); platform code 85

• Renewed: gasket

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• Renew gasket and self-locking nuts.

🔧 Engine codes this applies to

📋 Procedure

1. Remove engine cover panel .
2. Detach electrical connectors (1, 2) from bracket, unplug connectors and move electrical wiring clear.
3. Remove bolts (arrows) and detach bracket with heat shield (2) and bracket (1) for engine cover panel.
4. Unscrew bolt (2) and remove screw-type clip.
5. Remove bolt (1) and nuts (arrows).

6. Remove noise insulation (front) General body repairs, exterior66Noise insulation; Removing and installing noise insulation.
7. Remove tunnel cross-piece General body repairs, exterior66Underbody trim; Exploded view - underbody trim.
8. Remove bolts (arrows).
9. Detach electrical connector from bracket and move clear wiring to Lambda probe.
10. Loosen clamp (arrow) and push towards rear.
11. Detach catalytic converter with front exhaust pipe.
12. Insert screwdriver (2) into groove (arrow) on turbocharger and lever out seal (1). [Note: Renew gasket and self-locking nuts.]
13. Install engine cover panel .
14. Align the exhaust system so it is free of stress .

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