Removing and installing exhaust gas temperature sender G497/G649 - vehicles up to model year 2013 — AUDI

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

Don't miss

• Disregard (item 3).
• Disregard (item 1).

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ When working on all parts of the exhaust system:Observe safety precautions when working on the exhaust system . — Remove engine cover panel .
2. Detach electrical connectors (1, 2, 3) from bracket, unplug connectors and move electrical wiring clear.
3. Unplug electrical connector (2).
4. Remove bolt (1) and move pressure differential sender 2G524 clear. [Note: Disregard (item 3).]
5. Move clear vacuum hose (2).

6. Remove bolts (arrows) and place bracket (1) on engine.
7. Unscrew temperature sender: [Note: Disregard (item 1).]
8. Align exhaust gas temperature sender 3 for bank 2G497 with as much clearance from surrounding components as possible.
9. Align exhaust gas temperature sender 4 for bank 2G649 parallel to centre line (arrow).
10. Install engine cover panel .

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