17 11 100 Removing and installing/renewing coolant expansion tank (N63)

Necessary preliminary work: 

• Drain COOLANT .
• Remove LEFT TRAILING LINK .
• Remove left intake port.
• Release expansion tank  . See 32 41 250 REMOVING AND INSTALLING/REPLACING FLUID RESERVOIR FOR HYDRAULIC STEERING or 32 41 280 REMOVING AND INSTALLING/REPLACING OIL RESERVOIR for hydraulic steering or dynamic drive and place to one side.

Release screw (1).

Tightening torque 17 10 2AZ .

Release and disconnect coolant hoses (2).

Raise expansion tank (3)

Unlock connector (1) on coolant level switch and disconnect.

Remove expansion tank (2).

Assemble engine.

Top up COOLANT .

Check cooling system for LEAK TIGHTNESS .