Necessary preliminary tasks

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Read out fault memory of DME control unit
Switch off ignition

Temperature sensor is mounted on cylinder head at front.

Unlock plug (1) and remove.

Release temperature sensor (2).

Installation:

Tightening torque, 13 62 2AZ .

If necessary, top up COOLANT

Checking COOLING SYSTEM for water leaks

Fig 1: Identifying Plug And Temperature Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Now clear the fault memory.