Removing, installing refrigerant injection nozzle - AR83.50-P-1000DA

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MODEL 140.### ## as of 128374 up to 258244 with CODE (582) Air conditioning system in rear

Fig 1: Identifying Coolant Injection Nozzle, Pressure Line And Coolant Shut-Off Valve

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removing, installing
	Risk of explosion through welding or soldering operations on closed air conditioning system. Risk of poisoning through inhaling overheated refrigerant vapors. Risk of injury through skin and eye contact with fluid coolant	Do not carry out welding operations on closed air conditioning system or around it. Smoking and naked flame are forbidden. Wear protective glasses and protective gloves, work only in well ventilated areas. Only carry out repair operations on air conditioning system circuit with system drained.	AS83.00-Z-0001-01A
	Procedure with damaged or leaking air conditioning system		AH83.30-N-0004-01A
	Protect air conditioning system circuit and components from dampness when carrying out repair operations	All models with air conditioning system	AH83.30-N-0005-01A
	Notes for handling refrigerant R134	All models with refrigerant R134a	AH83.30-N-0003-01A
1	Drain air conditioning system (Recycling), purge, fill, check for leaks	Return drawn off compressor oil to refrigerant circuit when filling air conditioning system	*BF83.00-P-1001-01A
2	Remove front fender lining
3	Remove lining behind longitudinal member, front left	6 screws
4	Detach lining of longitudinal member, front left	2 screws
5	Remove pressure line (2) on refrigerant shut-off valve, rear	Close openings on shut-off valve (parts set) Installation: Replace sealing rings and coat with compressor oil when inserting.
6	Pull out refrigerant injection hose (2)	Refrigerant injection nozzle (2) must always be replaced when removing
7	Install in the reverse order
8	Replace receiver/drier		ra83001400540x
		Note oil top up amount when replacing receiver/drier	*BF83.55-P-1005-01A
9	Switch on air conditioning system and allow engine to run at idle speed for approx. 4 minutes	Set temperature selection dial to min. (blue) Blower at max.
10	Check air conditioning system function	Air output temperature at air output nozzle eye must not fall below +5°C, if necessary ↓ Carry out diagnosis in accordance with diagnosis manual
11	Inspect air conditioning system circuit for leaks		AR83.30-P-1209-01D
			*WE58.40-Z-1002-20A

AIR CONDITIONING SYSTEM/AUTOMATIC CLIMATE CONTROL

Number	Designation			Model 140 with rear air conditioning system code 582 as of vehicle ident. end no. 1A 128 374
BF83.00-P-1001-01A	Capacity air conditioning system/automatic climate control	Refrigerant R12	g	1500
		Refrigerant R134 a	g	1250
		Specifications for service products	Sheet	361

REFRIGERANT COMPRESSOR

Number	Designation			Refrigerant compressor 10PA20 Refrigerant R12 in model 140	Refrigerant compressor 10PA20 Refrigerant R134 in model 140
BF83.55-P-1005-01A	Additional oil filling capacity when replacing receiver/drier	Compressor oil	cm³	10	10
BF83.55-P-1005-01A		Specifications for service products	Sheet	362	362

WORKSHOP EQUIPMENT

WE58.40-Z-1002-20A

Air conditioning leak detector