Removing and installing exhaust manifold: VW Passat B6 (AXW, AXZ, BGU, BJN, …)

🧭 Before you start

Fits: VW Passat B6 (3C, 2005–2010); platform code 1F7

• Opens: brake fluid

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• On vehicles with engine codes BLX and BVX the exhaust system bracket is removed together with the wiring guide for Lambda probe after catalytic converter.
• The flexible joint in front exhaust pipe must not be bent more than 10° - danger of damage.
• On engines with engine code BVY only one connector is fitted.
• Exhaust gas recirculation valve N18 coolant hoses remain connected.

🔧 Engine codes this applies to

📋 Procedure

1. ⚠ When doing any repair work, especially in the engine compartment, pay attention to the following due to the cramped conditions:Route all the various lines (e.g. for fuel, hydraulics, activated charcoal filter system, coolant and refrigerant, brake fluid and vacuum) and electrical wiring in their original positions.To avoid damage to lines, ensure sufficient clearance to all moving or hot components. — Remove noise insulation General body repairs, exterior50Body - front; Noise insulation.
2. Unbolt bracket for exhaust system (arrows). [Note: On vehicles with engine codes BLX and BVX the exhaust system bracket is removed together with the wiring guide for Lambda probe after catalytic converter.]
3. Remove securing nuts (arrows) for front exhaust pipe to exhaust manifold. [Note: The flexible joint in front exhaust pipe must not be bent more than 10° - danger of damage.]
4. Unscrew bolts (1 … 3) for exhaust manifold supports.
5. Remove engine cover panel, if fitted.

6. Remove connectors (1 and 2) for Lambda probes from retainer and disconnect them. [Note: On engines with engine code BVY only one connector is fitted.]
7. Unclip coolant hose (1) and pull off connector (2).
8. Remove cable guide .
9. Loosen bolts (1…3) and remove connecting pipe.
10. Unscrew securing bolts (1 and 2).
11. Loosen bolts on intake manifold and remove connecting pipe.
12. Lay Lambda probe wiring harness (1) to one side (arrows).
13. Remove Lambda probe(1). [Note: Exhaust gas recirculation valve N18 coolant hoses remain connected.]
14. Remove exhaust gas recirculation valve N18(arrows) and place to one side.
15. Remove heat shield above exhaust manifold by removing bolts (1) and pulling off heat shield (arrows)
16. Remove exhaust manifold (arrow) and remove it upwards.

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