17 13 020 Removing and installing/replacing intercooler expansion tank (N63)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Risk of scalding!
Only perform this repair work after engine has cooled down.

Necessary preliminary work

Remove acoustic cover . See 11 00 REMOVING AND INSTALLING/REPLACING THE ACOUSTIC COVER (N63 B44 O 0/1) or 11 00 REMOVING AND INSTALLING/REPLACING ACOUSTIC COVER (N63) .
Drain coolant for charge air cooler.

Release screws (1).

Tightening torque 17 10 7AZ.

Release coolant hoses (2) from expansion tank (3) and detach.

Installation note:

Replace faulty clamps.

Remove expansion tank (3).

Fig 1: Identifying Intercooler Expansion Tank With Coolant Hoses And Mounting Screws

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Assemble engine.

After completing the repair work, fill charge air cooler with coolant.

Vent COOLING SYSTEM for intercooler.

Check cooling system for charge air cooler for leaks.