Removing and installing rear air conditioning system heat exchanger temperature sensor - AR83.50-P-9090M

MODEL 220 with CODE (582) Rear air conditioning 

Fig 1: Identifying Heat Exchanger Temperature Sensor Location

Courtesy of MERCEDES-BENZ USA

	Remove/Install
1	Remove rear AC control module (N22/4)		AR83.50-P-9070M
2	Remove center console (1)	Except models 220.074/ 174.	AR68.20-P-2000M
		Only models 220.074/ 174.	AR68.20-P-2000AM
3	Disconnect connector (2)
4	Pull heat exchanger temperature sensor for rear air conditioning, from the AC housing on the left (B10/9)
5	Pull heat exchanger temperature sensor for rear air conditioning from the AC housing on the right (B10/10)
6	Install in the reverse order
7	Turn on air conditioning and idle engine for about 4 minutes	Set left and right temperature of rear AC control and operating module to "Lo" Switch blower over to the maximum setting
8	Check function of air conditioning	Air outlet temperature at the center nozzle shall not fall below + 5° C, and if necessary ↓
9		carry out diagnosis.