C 320 4MATIC Sedan (203.084) V6-3.2L (112.953) (2003)
Control Module HVAC: All Technical Service Bulletins
Automatic Temperature Control - Inoperative
Date: January 11, 2002
Order No.: P-B-83.30/58
Supersedes:
Group: 83
SUBJECT:
Model 203
Air Conditioning Inoperative
If you encounter instances in Model 203 vehicles where the air conditioning is inoperative and the pressure reading via Star Diagnosis is 0 bar, there may
be two potential causes.
1)
First, check whether the AC is coded in the EIS. To check version coding, using Star Diagnosis, go through the following menus:
Control Units
Body
EIS
Control Unit adaptations
Read coding and change if necessary
All codes
Automatic Air conditioning / automatic temperature control
This coding should read as "PRESENT".
2)
If the AC is coded correctly, check the pressure temperature sensor and replace if necessary.
In Case of Warranty