11 53 000 Removing and installing/replacing coolant thermostat (N52T)

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

Recycling:

Catch and dispose of drained coolant in a suitable collecting vessel.

Observe country-specific waste disposal regulations.

Necessary preliminary work:

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).

Tightening torque: 11 53 1AZ .

Remove coolant thermostat (7).

NOTE: Illustration shows coolant thermostat removed.

Fig 1: Identifying Coolant Thermostat And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Fig 2: Identifying Snap Fastener On Coolant Hose And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.