Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Replacing Coolant-temperature Sensor (M62)


NOTE: Interrogate fault memory of DME control unit. Switch off ignition.


WARNING!
Danger of scalding!
Only perform these tasks on an engine that has cooled down.







Turn fasteners on acoustic cover 90° counterclockwise.
Remove acoustic cover.







Coolant temperature sensor is mounted on water pipe at front.
Remove vacuum lines (1).
Detach plug (2) from temperature sensor.

Recycling
Catch and dispose of escaping coolant.
Observe country-specific waste-disposal regulations.







Twist out temperature sensor (1).


Installation: Replace sealing ring.

Vent cooling system and check for leaks.
Use BMW approved coolant.


NOTE:
Interrogate fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Now clear the fault memory.