Removing and installing catalytic converter (left-side) - vehicles with dual clutch gearbox — AUDI

🧭 Before you start

Fits: Audi A6/A7 C7 (4G, 2011–2018); platform code 4X

• Renewed: gaskets

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• Risk of damage to running gear components.The vehicle must NOT be lowered onto its wheels if the engine/gearbox mountings, steering rack or subframe cross brace are not properly installed. — Remove front silencer (left-side) .
• Disregard (item 1).
• Risk of accident.Engine and gearbox jackV.A.G 1383 A must remain in position when work is being carried out and must not be left unattended. — Remove bolts (arrows) for tunnel cross member.
• Renew gaskets and self-locking nuts.

🔧 Engine codes this applies to

📋 Procedure

1. Remove Lambda probe 2 after catalytic converter G131.
2. Remove subframe cross brace Running gear, axles, steering40Subframe; Removing and installing subframe cross brace.
3. ⚠ Risk of damage to running gear components.The vehicle must NOT be lowered onto its wheels if the engine/gearbox mountings, steering rack or subframe cross brace are not properly installed. — Remove front silencer (left-side) .
4. Remove front wheel housing liner (left-side) General body repairs, exterior66Wheel housing liners; Removing and installing front wheel housing liner.
5. Detach intermediate steering shaft from steering rack and move clear by telescoping splines together Running gear, axles, steering48Steering column; Removing and installing intermediate steering shaft.

6. Unscrew bolts (arrows) and remove cover (1) from side of gearbox.
7. Loosen bolted connection (2) and swivel bracket (1) to rear (arrow).
8. Remove nuts (arrows). [Note: Disregard (item 1).]
9. Fit gearbox support T10337 onto engine and gearbox jackV.A.G 1383 A and position underneath gearbox.
10. Raise gearbox slightly using engine and gearbox jack.
11. ⚠ Risk of accident.Engine and gearbox jackV.A.G 1383 A must remain in position when work is being carried out and must not be left unattended. — Remove bolts (arrows) for tunnel cross member.
12. Lower tunnel cross member as far as distance (a) using engine and gearbox jackV.A.G 1383 A.
13. Detach catalytic converter (left-side). [Note: Renew gaskets and self-locking nuts.]
14. Install intermediate steering shaft Running gear, axles, steering48Steering column; Removing and installing intermediate steering shaft.
15. Install Lambda probe 2 after catalytic converter G131.

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