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

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

M57 only:

Release fuel cooler and place to one side.

All:

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:

Plug connection (2)
Plug connection (1)

Fig 1: Disconnecting Plugs
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M57 only:

Release screw (3) and remove retaining fixture with centering for fuel cooler.

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).

Fig 2: Detaching Hose Clamp From Intake Hose

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

Loosen screws (1).

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

Fig 3: Detaching 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.

Fig 4: Folding Back Plug Connection Holder

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Unclip plug connections (2) and (3) and disconnect.

Pull out pins (2) with aid of appropriate metal screw.

Fig 5: Unclipping Plug Connection Holder

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Unclip plug connection holder (1) in direction of arrow.

Loosen screws (2).

Fig 6: Detaching Cover

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

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

Loosen screws (1).

Fig 7: Pulling Out Exhaust Pipe

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Pull out exhaust pipe (2) downwards.

Installation:

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

Fig 8: Checking Rubber Seal And Heat Insulation

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