Remove and install heat exchanger - AR83.25-P-1100M

MODELS 215, 220 

Fig 1: Identifying Heat Exchanger Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Heat Exchanger Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  to skin and eyes from scalding with hot coolant which splashes out. Risk of poisoning  from swallowing coolant.	Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage bottles. Wear protective gloves, protective clothing and eye protection.	AS20.00-Z-0001-01A
	Risk of explosion  from welding or soldering work on closed air conditioning system. Risk of poisoning  from inhaling overheated refrigerant vapors. Risk of injury  from skin and eye contact with liquid refrigerant.	Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or open flames. Wear eye protection 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
	Conduct if air conditioning system is damaged or leaking		AH83.30-N-0004-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work	All models fitted with air conditioning	AH83.30-N-0005-01A
	Notes on handling refrigerant R134a	All models with R134a refrigerant	AH83.30-N-0003-01A
1	Drain air conditioning (recycle)	Replenish extracted quantity of compressor oil in the refrigerant circuit (fresh oil) when filling the air conditioning system. Installation:  Evacuate air conditioning system, fill, inspect for leaks. Before filling the air conditioning system: ↓
		Replace receiver/drier	AR83.30-P-6520M
2	Remove AC housing		AR83.30-P-5200M
3	Unclip clamps (4)
4	Unscrew screws (2)
5	Take off cover (3)
6	Detach retaining clamps (5) on heating water flow pipe
7	Remove screws (6) of heating water flow pipe's bracket
8	Remove screws (7) of heating water flow pipe's guide
9	Pull out heat exchanger (8) with the heating water pipes	Clean heater housing from inside, if necessary remove escaping coolant.
10	Detach socket yoke (9), remove heating water flow pipe (c)	Fit new O-rings and replace socket yoke.
11	Remove bracket screw (10) and detach heating water flow pipe (d)	Fit new O-rings.
12	Install in the reverse order