17 11 100 Removing and installing/replacing coolant expansion tank (N55 hybrid)
WARNING:
Risk of scalding!
Only carry out repair work on the cooling system after the engine has cooled down!
Only carry out repair work on the cooling system after the engine has cooled down!
WARNING:
High-voltage system - danger to life!
The following points must be strictly observed prior to starting work :
The following points must be strictly observed prior to starting work :
- Observe SAFETY INFORMATION for handling hybrid cars
Necessary preliminary work:
- Disconnect coolant hoses from expansion tank for coolant.
Unlock and detach coolant hose (1) from top of expansion tank.
Release screw (2).
Tightening torque 17 10 4AZ .
Unlock locks (3) in direction of arrow. Pull off expansion tank upwards from carrier support until coolant hose below expansion tank is accessible.
Unlock and disconnect plug on coolant level switch (1).
Unlock and detach coolant hose (2).
Lift out expansion tank.
VENT COOLING SYSTEM and check for leaks.