11 53 000 Removing and installing/replacing coolant thermostat (N52)

WARNING: Danger of scalding!

Only perform these tasks on an engine that has cooled down.

Recycling:

Catch and dispose of drained coolant.

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 THERMOSTAT AND CONNECTIONS (N52) .

Remove coolant thermostat (7).

NOTE: Illustration shows coolant thermostat removed.

Fig 1: Identifying Coolant Thermostat, Hose Clamp, Screws, Plug Connection And Coolant Hose

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.