18 00 020 Removing And Installing Complete Exhaust System (Z3 / S54)

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Support exhaust system with lifter; note that the two rear mufflers make the exhaust system heavier at the rear that at the front.

Disconnect plug connections on both monitor sensors. Release screw connection for temperature sensor.

Release screw connections (1) between exhaust manifold and catalytic converter.

Installation:

Check gaskets, replace if necessary.

Replace self-locking nuts.

Coat threads with -CRC- copper paste .

Fig 1: Locating Screws Between Exhaust Manifold And Catalytic Converter

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Release hexagon screw (1) for mounting on rear muffler on rear axle carrier on left and right.

Fig 2: Locating Hexagon Screw

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Release hexagon nuts (1) for supporting rear mufflers at inside rear on body on left and right.

Fig 3: Removing Hexagon Nuts Supporting Rear Mufflers At Inside Rear

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Release hexagon nuts (1) for supporting rear mufflers at outside front on body on left and right.

Fig 4: Removing Hexagon Nuts Supporting Rear Mufflers At Outside Front

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Remove exhaust system towards bottom.