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

🧭 Before you start

Fits: Audi A5 (8T, 2007–2016), Audi A5 Cabriolet (8F), Audi A4 B8 (8K, 2007–2015)

• Renewed: gaskets

Don't miss

• Illustration shows the installation position on a vehicle with dynamic steering.
• Disregard (item 1).
• For illustration purposes, the installation position is shown with the engine removed.

🔧 Engine codes this applies to

📐 38 workshop diagrams for CALA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Remove front silencer (left-side) .
2. Remove Lambda probe 2 after catalytic converter G131(item 2).
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 nut (1) for power steering hydraulic line.
4. Remove bolts (arrows) and detach subframe cross brace. [Note: Illustration shows the installation position on a vehicle with dynamic steering.]
5. Remove bolt (2) on both sides. [Note: Disregard (item 1).]

6. Remove bolt (2) for power steering hydraulic line.
7. Remove bolts (1) and (arrows) and detach subframe cross brace.
8. If fitted, remove bolts (arrows) and detach heat shield (1) (left-side).
9. Remove nuts (arrows) and bolt (1) and detach catalytic converter (left-side). [Note: For illustration purposes, the installation position is shown with the engine removed.] [Note: Renew gaskets and self-locking nuts.]
10. Install subframe cross brace Running gear, axles, steering40Subframe; Exploded view - subframe.
11. Install Lambda probe 2 after catalytic converter G131.
12. Install front silencer (left-side) .

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