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Removing and installing heat exchanger temperature sensor - ra83001400885x(0885)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Model 140 

Fig 1: Identifying Heat Exchanger Temperature Sensor Location
G05440967Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Control unit Remove (Control unit for rear air conditioner  ).
Heat exchanger temperature sensor Pull out.
B10/9 or B10/10  
2-pole coupling Detach.
Heat exchanger temperature sensor  
B10/9 or B10/10 Check, renew if required.
Install In reverse sequence.
Rear air conditioner Perform function check.
  IMPORTANT After completing the work:
Erase fault memory in the control unit (Diagnosis manual - air conditioning).
TEST VALUES

Sensor temperature in °C Resistance in kΩ
+10 18.2 - 22.0
+15 14.3 - 17.2
+20 11.5 - 13.5
+25 9.1 - 10.9
+30 7.3 - 8.7
+35 6.0 - 7.0
+40 4.9 - 5.7
+45 4.0 - 4.7
COMMERCIALLY AVAILABLE TESTER

Multimeter e.g. SUN, DMM-5