Cleaning the evaporator - AR83.30-P-5555MCC

MODEL 451.3/4 with CODE (I01) Air conditioning Plus 

Fig 1: Identifying Condensation Drain, Spray Probe And Rotary Switch

Courtesy of MERCEDES-BENZ USA

	Removing
	Risk of explosion  caused by welding or soldering work on closed air conditioning system. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury  to skin and eyes caused by contact with liquid refrigerant.	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been discharged.	AS83.00-Z-0001-01A
	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
1	Close air recirculation flap
2	Switch off ignition, blower and air conditioning
3	Remove evaporator temperature sensor		AR83.30-P-8085MCC
4	Remove combination filter		AP83.00-P-8384MCC
5	Expose condensation drain (1) and place suitable collecting pan underneath
6	Fill disinfection cleaner into disinfection cleaning equipment with connected spray probe (2)	Use short spray probe (2).
7	Connect disinfection cleaning equipment to compressed air hose and adjust pressure up to 10 bar
	Cleaning the evaporator
8	Insert spray probe (2) through opening of evaporator temperature sensor into evaporator housing
9	Cover opening of combination filter slot	No disinfection cleaner must enter the interior.
10	Place thumb on plate on spray probe (2)	This sets the spray direction of the spray probe (2). When spraying through the evaporator temperature sensor opening, the plate on the spray probe (2) must point towards the vehicle interior.
11	Actuate disinfection cleaning equipment and move back and forth with the spray probe (2)	Spray using approx. 0.5 liters of disinfection cleaner. Allow disinfection cleaner to work in for at least 30 min.
12	Check whether disinfection cleaner escapes through the condensation drain (1), clean condensation drain (1) if necessary	If disinfection cleaner is only dripping, check condensation drain (1) for contamination and clean.
13	Adjust rotary switch (3) of ventilation system as shown in picture A
14	Start engine, switch on air conditioning system, open all air vents and allow blower to run at highest setting for at least 10 min.	Leave the doors on the vehicle open. The evaporator is flushed out. Only when these instructions are complied with exactly is the evaporator cleaned completely and the odor eliminated. Position rotary switch (3) after 5 min as shown in picture B.
15	Switch off ignition
	Install
16	Remove collecting pan and install condensation drain (1)
17	Replace combination filter		AP83.00-P-8384MCC
18	Install evaporator temperature sensor		AR83.30-P-8085MCC

Part no.	Designation	Quantity
A 000 581 00 04	Set consisting of pressure-feed spray gun with 2 spray probes and accessories (disinfection cleaning equipment)	1
A 009 989 61 71	Mercedes-Benz Contra Sept disinfection cleaner for air conditioning systems (contents 1l)	1
Replacement parts	Only order when required
A 000 997 15 03	Mixed use	1
A 005 997 47 89	Quick coupling	1
A 016 997 91 45	Flat sealing ring	1
A 000 581 00 05	954 mm spray probe	1
A 000 581 01 05	1054 mm spray probe	1