Drain, evacuate and refill air conditioning, check function and check for leaks · ar8330p1760rt · Mercedes-Benz WIS

AR83.30-P-1760RT

Drain, evacuate and refill air conditioning, check function and check for leaks

24.8.06

MODEL 251
with CODE (580) Automatic air conditioning
with CODE (581) Comfort automatic air conditioning
with CODE (582) Rear air conditioner

Drain, evacuate and refill air conditioning, check function and check for leaks

P83.30-4229-09

Illustrated on model 251.113

1 Cap

2 Filling connection of high pressure line

3 Cap

4 Filling connection of low-pressure line

5 Filling equipment connection

6 Filling equipment connection

Modification notes

12.7.06

Filling quantities added

Step 7

	Draining
 Danger!	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
	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	Air conditioning with refrigerant R134a	AH83.30-N-0003-01A
	For all steps, proceed as per the operating instructions for the air conditioning vacuum, recycling and filling unit for refrigerant R134a
1	Unscrew plug (1, 3)	 Depending on the engine model, various installation positions are possible for the filling connection of the high pressure line and for the filling connection of the low-pressure line.
2	Connect the air conditioning vacuum, recycling and filling unit for refrigerant R134a to the vehicle	 Connect the filling unit connection (6) to the filling connection of the high pressure line (2) and the filling unit connection (5) to the filling connection for the low-pressure line (4)
		 Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
3	Extract refrigerant R134a	 Make note of the amount of refrigerant compressor oil extracted.
		 Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
	Evacuate
4	Replace fluid reservoir (drier cartridge)	 Only if refrigerant circuit has been opened.	AR83.30-P-6520RT
5	Clean refrigerant R134a and evacuate air conditioning system	 Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
	Charging
6	Replace the quantity of refrigerant compressor oil noted when evacuating the air conditioning system with new refrigerant compressor oil, fill it into the refrigerant circuit	 Strictly observe the specifications of the adhesive data label (arrow A) of the air conditioning to prevent damage caused by overfilling or underfilling. The adhesive data label of the air conditioning contains specific data for the each vehicle. The AC compressor oil to be used is indicated in addition to the refrigerant quantity!
		 If the wrong quantity of refrigerant compressor oil is filled, then the refrigerant compressor may be damaged.
		 Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
7	Fill air conditioning system	 Strictly observe the specifications of the adhesive data label (arrow A) of the air conditioning to prevent damage caused by overfilling or underfilling. The adhesive data label of the air conditioning contains specific data for the each vehicle. The AC compressor oil to be used is indicated in addition to the refrigerant quantity!
		 Air conditioning system/automatic climate control filling capacity	*BF83.00-P-1001-01G
		Refrigerant compressor filling quantity	*BF83.55-P-1001-01I
		 Additional quantity of oil to be added when system suddenly looses fluid (e.g. line ruptured)	*BF83.55-P-1002-01I
		Additional oil filling quantity after replacing the condenser	*BF83.55-P-1003-01I
		Additional oil filling quantity after replacing evaporator	*BF83.55-P-1004-01I
		Additional oil filling quantity after replacing the fluid reservoir	*BF83.55-P-1005-01I
		Additional oil filling quantity after replacing the low-pressure line	*BF83.55-P-1006-01I
		Additional oil filling quantity after replacing the high pressure line	*BF83.55-P-1007-01I
		Additional oil filling quantity after replacing the refrigerant compressor	*BF83.55-P-1008-01I
		Additional oil filling capacity in case of detectable leakage	*BF83.55-P-1009-01I
		Additional oil filling quantity after replacing rear air conditioning evaporator	*BF83.55-P-1010-01I
		Additional oil filling quantity after replacing rear AC lines	*BF83.55-P-1011-01I
		Additional oil filling quantity after replacing evaporator (rear compartment)	*BF83.55-P-1012-01I
		Additional filling capacity for refrigerant compressor with rear air conditioning	*BF83.55-P-1013-01I
		 Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
8	Perform pressure test on AC system	 Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
9	Disconnect the filling unit connection (6) from the filling connection for the high pressure line (2) and the filling unit connection (5) from the filling connection for the low-pressure line (4).	 Air conditioning evacuation, recycling and charging unit for R134a refrigerant	*WE58.40-Z-1002-22A
10	Screw on plug (1, 3)	 Replace damaged plugs!
	Check
11	Check air conditioning system for leakage with air conditioning leak detector.	 Air conditioning system leak detector	*WE58.40-Z-1002-20A

 Air conditioning system/automatic air conditioning

Number	Designation			Model 251 without air conditioning in rear (code 582)	Model 251 with air conditioning in rear (code 582)


BF83.00-P-1001-01G	Air conditioning/automatic air conditioning filling capacity	Refrigerant R134 a	g	970	1220
		Specifications for Operating Fluids	Sheet	BB00.40-P-0361-00A	BB00.40-P-0361-00A

 Refrigerant compressor

Number	Designation			Refrigerant compressor in model 251


BF83.55-P-1001-01I	Refrigerant compressor filling quantity	Compressor oil	cm3	110
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1002-01I	Additional quantity of oil to be added when system suddenly looses fluid (e.g. line ruptured)	Compressor oil	cm3	40
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1003-01I	Additional oil filling quantity after replacing condenser	Compressor oil	cm3	20
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1004-01I	Additional oil filling quantity after replacing evaporator	Compressor oil	cm3	40
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1005-01I	Additional oil filling quantity after replacing fluid reservoir	Compressor oil	cm3	10
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1006-01I	Additional oil filling quantity after replacing low-pressure line	Compressor oil	cm3	10
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1007-01I	Additional oil filling quantity after replacing high-pressure line	Compressor oil	cm3	10
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1008-01I	Additional oil filling quantity after replacing refrigerant compressor	Compressor oil	cm3	20
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1009-01I	Additional oil filling capacity in case of detectable leakage	Compressor oil	cm3	20
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1010-01I	Additional oil filling quantity after replacing rear air conditioning evaporator	Compressor oil	cm3	30
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1011-01I	Additional oil filling quantity after replacing rear AC lines	Compressor oil	cm3	20
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1012-01I	Additional oil filling quantity after replacing evaporator (rear compartment)	Compressor oil	cm3	10
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A
BF83.55-P-1013-01I	Additional filling capacity for refrigerant compressor with rear air conditioning	Compressor oil	cm3	30
		Specifications for Operating Fluids	Sheet	BB00.40-P-0362-00A

Workshop equipment

WE58.40-Z-1002-20A	Air conditioning leak detector
WE58.40-Z-1002-22A	Air conditioning service station

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