17 11 100 Removing and installing/replacing coolant expansion tank (N20, N55, N52T, N47 D20 O 1, N57 D30 O/T 1, B47)

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Necessary preliminary tasks:

FOLLOW instructions for repair work on the cooling system.
Disconnect coolant hoses from expansion tank for coolant.

If fitted:

Release screw (1).

Fig 1: Identifying Coolant Expansion Tank Screw

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Unlock and detach coolant hose (2).

Pull expansion tank (1) upward out of retaining bracket.

Fig 2: Detaching Coolant Hose

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Release and detach coolant hose (1) under expansion tank.

Unlock connector (2) on coolant level switch and disconnect.

Remove expansion tank.

Installation note:

Make sure guide pin (3) is fitted correctly in rubber grommet (4).

Fig 3: Identifying Coolant Hose, Connector And Guide Pin

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Assemble engine.

Top up COOLANT .