13 62 531 Replacing Engine Coolant Temperature Sensor (N73)

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Necessary preliminary tasks:

Read out fault memory of DME control unit.
Switch off ignition.
Remove design cover.

WARNING: Danger of scalding!

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

Recycling

Catch and dispose of escaping coolant.

Observe country-specific waste-disposal regulations.

Disconnect plug (1) from temperature sensor.

Release temperature sensor (2).

Tightening torque: 13 62 2AZ. See 13 62 SENDERS FOR CONTROL UNIT

Fig 1: Identifying Plug And Temperature Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.

Check cooling system for leaks.

If necessary, top up coolant, BMW Service Operating Fluids MG17. See FUEL SYSTEM - OPERATING FLUIDS