11 53 090 Removing and Installing/Replacing the Auxiliary Waterpump For the Exhaust Turbocharger

11 53 090 Removing And Installing / Replacing The Auxiliary Waterpump For The Exhaust Turbocharger (N63 Hybrid)







WARNING:
Risk of scalding.
Only perform this work after engine has cooled down.







Recycling:
Catch and dispose of drained coolant in a suitable container.
Observe country-specific waste disposal regulations.







Necessary preliminary tasks:
- Remove charge air cooler expansion tank







Unclip the coolant hose (1) from the holder in the direction of the arrow.
Unfasten screws (2).
Tightening torque 11 51 4AZ.

GraphicsE71







IMPORTANT:
Risk of damage.
Coolant emerges when the coolant hoses are detached from the auxiliary water pump.
Cover surrounding components and plug connections with suitable apparatus

Release hose clamps (1 and 2) with a suitable tool.
Disconnect plug connection (not shown).

Installation note:
Plug connection must snap audibly into place.
Lift out auxiliary water pump.







Assemble engine.
Top up coolant.
Bleeding instructions must be observed without fail.