Remove Coolant Temperature Sensors; Install Coolant Temperature Sensors; Removing Exhaust Gas Temperature Sensor - Webasto Thermo Top Pro 120 Workshop Manual

8 | Repairing and replacing components
8.19 Remove coolant temperature
sensors
NOTE
Never remove the temperature sensors for testing, just
for replacement.
Do not reinstall the removed sensors.
A
B
C
D
E
Fig. 48 Temperature sensors with sensor cover and screws
A Collar screws
B Cover for sensors
C Temperature sensors
Follow these steps:
1. Pull connector (E) out of control unit.
2. Disconnect connector for exhaust gas sensor (D).
3. Remove 2x collar screws for sensor cover (A) M4 T20.
4. Remove cover for sensors (B).
5. Pull temperature sensors (C) out of the heat exchanger.
8.20

Install coolant temperature sensors

NOTE
The seals of the sensors must be wetted with suitable
lubricant before being inserted into the heat exchanger.
Note cable routing and position of sensors.
The cover protects the sensors
8.21 Removing exhaust gas temperature
sensor
NOTE
Never remove the sensors for testing, just for replace-
ment.
36 / 49
D Exhaust gas sensor
E Connector (control unit)
Fig. 49 Exhaust gas temperature sensor with connector, clip and screw
A Exhaust gas sensor C Exhaust gas temperature sensor
B Spring clip D Screw for spring clip
Follow these steps:
1. Disconnect exhaust gas sensor connector (A).
2. Remove 1x screw for spring clip (D) M4 T20.
3. Carefully remove spring clip (C).
4. Carefully pull out exhaust gas temperature sensor (C).
9039412C Workshop manual TTP 120 _ 150
A
B
C
D