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

13 62 531 - Replacing coolant temperature sensor (N54)





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





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





Necessary preliminary tasks:
- Read out fault memory of DME control unit
- Switch off ignition
- Remove acoustic cover Removing and Installing/Replacing Ignition Coil Cover
- Remove fan cowl

Note:
Coolant temperature sensor is mounted on cylinder head at front.





Release screw.
Tightening torque 17 21 1AZ [1][2]17 21 Engine Oil Cooler.
Disconnect oil line (1).
Catch and dispose of emerging fluid.






Installation Note:
Replace sealing rings.





Unlock plug (1) and remove.
Release temperature sensor (2).

Installation Note:
Tightening torque 13 62 1AZ 13 62 Senders for Control Unit.
If necessary, top up coolant.
Check cooling system Component Tests and General Diagnostics for leaks.





Note:
After completion of work, check engine oil level.
Check stored fault messages.
Now clear the fault memory.