Install/remove condenser - AR83.30-P-6540V

MODEL 171.4 with ENGINE 113.989, 271.944 with CODE (580) Automatic air conditioning with CODE (581) Comfort automatic air conditioning

Fig 1: Identifying Condenser Components

Courtesy of MERCEDES-BENZ USA

Shown on model 171.442

Fig 2: Identifying Condenser Components - Shown On Model 171.442

Courtesy of MERCEDES-BENZ USA

Shown on model 171.473

Fig 3: Identifying Condenser Components - Shown On Model 171.473

Courtesy of MERCEDES-BENZ USA

	Remove/Install
	Risk of explosion from welding or soldering work on closed air conditioning system. Risk of poisoning from 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.	-
	Conduct if air conditioning system is damaged or leaking	All models	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	Air conditioning system with refrigerant R134a	AH83.30-N-0003-01A
	Risk of death cased by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer.	-
1	Raise vehicle.		AR00.60-P-1000V
	Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/ range of moving parts.	When moving components, ensure that no body parts or limbs are within the operating rear-end door or sliding roof.	-
2	Open engine hood and raise to vertical position		AR88.40-P-1000V
3	Discharge air conditioning system	Installation: Evacuate, refill air conditioning system and check for proper operation and tightness.	AR83.30-P-1760V
4	Disconnect air conditioning evacuation, recycling and charging unit for refrigerant R134a	Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
5	Unclip intake air line (3) on air cleaner housing (2) and on intake air duct (4)	Unclip intake air line (3) at both sides with engine 113.989 in model 171.473.
6	Push catch at upper fixture (5) of radiator (10) inwards and remove upper fixture (5) upwards	Installation: Grease both upper fixtures at body contact surfaces.
		Long-life grease	*BR00.45-Z-1001-06A
7.1	Remove drier cartridge	Engine 113.989 in model 171.473	AR83.30-P-6521VT
		The openings of the refrigerant lines (8) and of the condenser (1) must be sealed, since any penetrating dirt and moisture can otherwise damage components connected to the refrigerant circuit.
		Set of sealing plugs	Figure
8	Remove bottom engine compartment paneling at front		AR61.20-P-1105V
9	Disconnect electrical connector from refrigerant pressure sensor (B12).
10	Unscrew nut (7)		*BA83.30-P-1005-01D
11	Remove refrigerant lines (8) from condenser (1)	Installation: Renew sealing rings of refrigerant lines (8) and wet with compressor oil.
12	Use suitable sealing caps or plugs to seal openings of refrigerant lines (8) and condenser (1)	The openings of the refrigerant lines (8) and of the condenser (1) must be sealed, since any penetrating dirt and moisture can otherwise damage components connected to the refrigerant circuit.
		Set of sealing plugs for air conditioning system	*WH58.30-Z-1002-27A
13.1	Remove screw (13)	Engine 113.989 in model 171.473
14.1	Release charge air cooler (9) using suitable screwdriver (arrows A), swivel forwards and up and then put down	Engine 271.944 Installation: Slide charge air cooler (9) into fixture (12) on radiator (10) (arrow B) and lock (arrow A). Check installation position.
15	Lift radiator (10) out of lower support (11) and tilt towards engine
16	Remove spreader clips (6) from intake air duct (4)	Installation: Replace damaged expanding clips (6).
17	Remove suction air duct (4) by moving first to the left and then to the right
18	Release radiator (10) on condenser (1)
19	Fit safety plate to radiator (10) and remove condenser (1) upwards	Make sure that the stud for fastening the refrigerant lines (8) on the condenser (1) does not damage the slats on the radiator (10).
	Guard plate for radiator / condenser		-
20	Install in the reverse order