12 62 500 Replacing coolant temperature sensor
Only carry out work on the cooling system after the engine has cooled down!
Gaiter and charge air hoses with clamp fastenings must be installed dry and free from grease!
Sealing surfaces and connecting branches must be dry and free from grease.
If gaiter and charge air hoses with clamp fastenings are not installed dry and free from grease, this may result in exhaust turbocharger failure!
Necessary preliminary tasks:
- Read out fault memory of DME control unit
- Check stored fault messages
- Switch off ignition
Installation location:
On cylinder head, left.
Coolant can escape when temperature sensor is being replaced. Catch and dispose of coolant.
Release clamps (2).
Detach air intake hose (3).
Remove clean air pipe (4).
Unlock and detach plugs (1 and 3).
Unlock and disconnect line (2).
Carefully pull cable duct (4) upwards slightly.
Unlock plug (1) and remove.
Detach lock (2) and remove temperature sensor (3).
Installation:
- Replace sealing ring
- If necessary, ADD COOLANT .
- Check cooling system for WATER LEAKS .