300SDL (126.125) L6-3.0L DSL Turbo (603.961) (1987)
Cabin Temperature Sensor / Switch: Testing and Inspection
In-Car Temperature Sensor
Dome lamp
-
Pull out sideways towards the left.
2-pole coupling (1) and ventilation hose (2)
-
Pull off.
In-car temperature sensor (B 10/4)
-
Press off.
Install
-
In the reverse sequence.
Automatic climate control
-
Test.
Test Data:
Sensor temperature in °C, Resistance in kohms
+ 10
-
18.2 to 21.5
+ 15
-
15.3 to 17.2
+20
-
11.5 to 13.5
+ 25
-
9.5 to 10.5
+30
-
7.5 to 8.5
+35
-
6.0 to 7.0
+40
-
4.5 to 5.5
+45
-
3.5 to 4.5
Commercially Available Tester:
Multimeter e.g. SUN, DMM 5