Remove/install refrigerant lines at refrigerant compressor - AR83.30-P-7810MCU

MODEL 451.3/4 (except 451.39/49) with CODE (I01) Air conditioning Plus 

Shown on model 451.3 up to production date 2.6.08 

Fig 1: Identifying Refrigerant Lines At Refrigerant Compressor Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	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 refrigerants.	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 emptied.	AS83.00-Z-0001-01A
	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	Notes on handling R134a refrigerant	Air conditioning with refrigerant R134a	AH83.30-N-0003-01A
1	Drain air conditioning system	Evacuate air conditioning and then fill.	AR83.30-P-1760MCC
2	Disconnect air conditioning service unit	Air conditioner service unit
3	Lower rear drive module		AR01.00-P-3050MCU
4	Remove bolt (1, 3) for refrigerant line to be removed (2, 4) and remove refrigerant line (2, 4) from refrigerant compressor (A9)	Close off refrigerant lines (2, 4) and their connections to the A/C compressor (A9) with suitable stop plugs. Otherwise penetrating dirt and moisture damage components that are connected to the refrigerant circuit. Replace seal ring at the detached refrigerant line (2, 4) and coat with compressor oil when inserting.
	Compressor oils (specification 362.0)	Sheet 362.0	MB 362.0 compressor oil A 001 989 08 03
			*BA83.30-P-1002-01L
5	Remove rubber retainer (5)
6	Unclip refrigerant lines (2, 4) from bracket (7) and remove bracket (7)	On vehicles in which the bracket (7) is still installed. The bracket (7) may no longer be installed.
7	Open quick-release coupling (6) of refrigerant line to be removed (2, 4)	Cutting tool set	Fig 2
8	Remove refrigerant line to be removed (2, 4)	Ensure that the refrigerant lines (14) are a minimum distance of 5 mm away from the fuel tank and other components. Otherwise noise or damage could occur due to impacts or chafing.
9	Remove filter dryer	Always replace the filter drier after opening the refrigerant circuit.	AR83.30-P-6525MCC
10	Install in the reverse order

Fig 2: Identifying Cutting Tool Set (452 589 00 33 00)

Courtesy of MERCEDES-BENZ USA