64 12 579 Removing and installing/replacing exhaust pipe (top)

WARNING: This page is about a different variant/trim than selected.

Disconnect plugs (1) and (2).

CAUTION: To avoid damage during installation, it is absolutely essential to adhere to the following contacting sequence for the plug connections:

Fig 1: Disconnecting Auxiliary Heater Plug Connections

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Installation:

Make sure retaining fixture with centering for fuel cooler is correctly seated.

M54, M62 only:

Release screw (3).

All:

Detach hose clamp (2) from intake hose (3).

Detach intake hose (3) from heater (4) and place to one side.

Loosen screws (1).

Fig 2: Removing Auxiliary Heater Intake Hose

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Raise heater (1) and detach exhaust pipe (4) from flange (2).

Fig 3: Removing Exhaust Pipe

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Installation:

Ensure gasket (3) is correctly seated.

Remove front left wheel.

Remove wheel arch cover at front left.

Fold back plug connection holder (1) in direction of arrow. Unclip plug connections (2) and (3) and disconnect.

Fig 4: Disconnecting Plug Connection Holder

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Pull out pins (2) with aid of appropriate metal screw. Unclip plug connection holder (1) in direction of arrow.

Fig 5: Removing Plug Connection Holder

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Loosen screws (2).

Detach cover (1) at front in direction of arrow a little and push upwards.

Fig 6: Detaching Cover

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NOTE: For purposes of clarity, illustration shows exhaust pipe (bottom) removed.

Loosen screws (1).

Pull out exhaust pipe (2) downwards.

Fig 7: Removing Top Exhaust Pipe

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Installation:

Make sure rubber seal (1) and heat insulation (2) are correctly seated.

Fig 8: Installing Rubber Seal And Heat Insulation

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