11 53 000 Removing and installing/replacing coolant thermostat (N51)

WARNING: Danger 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:

Release hose clamp (1) and detach coolant hose.

Release hose clamp (2) and detach coolant hose.

Unlock and detach coolant hose (3).

Unlock and detach coolant hose (4).

Disconnect plug connection (5).

Release screws (6).

For tightening torque refer to 11 53 1AZ in 11 53 COOLANT THERMOSTAT WITH CONNECTIONS .

Remove coolant thermostat (7).

NOTE: Illustration shows coolant thermostat removed.

Fig 1: Hose Clips, Hoses, Screws, Coolant Thermostat And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Venting Instructions must be observed without fail.