Passat Sedan 4Motion V6-2.8L (ATQ) (2003)
Catalytic Converter: Service and Repair
Front Exhaust Pipe With Catalytic Converter, Removing and Installing
Front Exhaust Pipe With Catalytic Converter, Removing And Installing
Special tools, testers and auxiliary items required
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Hex ball socket 3247
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Ring spanner 7-piece set for oxygen sensor 3337
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Torque wrench V.A.G 1331
Removing
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Exhaust system must not be hotter than lukewarm.
CAUTION:
When doing any repair work, especially in the engine compartment, pay attention to the following due to clearance issues:
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Route all the various lines (e.g. for fuel, hydraulics, EVAP system, coolant, refrigerant, brake fluid and vacuum lines and hoses) and electrical
wiring so that the original positions are restored.
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Ensure sufficient clearance to all moving or hot components.
NOTE: All cable ties which are opened or cut open when removing, must be replaced in the same position when installing.
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Check whether a coded radio is installed. If necessary, obtain radio anti-theft coding.
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Switch off ignition and all electrical consumers.
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Disconnect battery Ground (GND) strap.
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Remove intake manifold cover.
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Unbolt coolant expansion tank and move it toward front with hoses connected.
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Disconnect hose between intake air scoop and Mass Air Flow (MAF) sensor at MAF sensor.