(Refrigerant Compressor, Remove/Install - AR83.55-P-5310LWE)

Engine 654.9 in model 213 (except 213.011/016/211/216)

MODIFICATION NOTES

20.05.2020	Document revised completely.
28.07.2020	Bolt, refrigerant line to refrigerant compressor		BA83.55-P-1002-02B

Shown on model 213 without code 1U6 (Refrigerant R744)

Courtesy of MERCEDES-BENZ USA

	Risk of injury when working on air conditioning systems due to R744 refrigerant escaping under pressure. Risk of suffocation from inhaling R744 refrigerant in high concentrations. Health hazard caused by inhalation of R744 refrigerant	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 evacuated. Model 213 (except 213.011/016/211/216) with engine 654.9 with code 1U6 (R744 refrigerant)	AS83.00-Z-0008-01A
	Risk of poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts	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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.	AS83.00-Z-0006-01A
	Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures	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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated. Engine 654.9 in model 213 (except 213.011/016/211/216) with code 2U8 (Alternative refrigerant)	AS83.00-Z-0007-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	Notes on handling refrigerant R744	Model 213 (except 213.011/016/211/216) with engine 654.9 with code 1U6 (R744 refrigerant)	AH83.30-P-0003-03A
	Notes on handling refrigerant R134a		AH83.30-N-0003-01A
	Notes on handling refrigerant R1234yf	Engine 654.9 in model 213 (except 213.011/016/211/216) with code 2U8 (Alternative refrigerant)	AH83.30-P-0003-02A
	Remove
1	Discharge air conditioning system.		AR83.30-P-1760LW
2	Remove the alternator (G2).		AR15.40-P-5032OLC
3	Release and disconnect electrical connector (6).
4	Remove screw (7) and detach high-pressure line (8) from refrigerant compressor (A9).
5	Seal openings using suitable stop plugs and protective covers.	Set of protective caps	Fig 2
		Record plug	Fig 3
6	Remove screw (9) and detach low-pressure line (10) from refrigerant compressor (A9).
7	Seal openings using suitable stop plugs and protective covers.	Set of protective caps	Fig 2
		Record plug	Fig 3
8	Remove bolts (3, 4, 5).
9	Remove refrigerant compressor (A9) upwards.
	Install
10	Correct oil level of refrigerant compressor (A9).	Engine 654.9 in model 213 (except 213.011/016/211/216) with code 1U6 (R744 refrigerant) When installing new refrigerant compressor (A9).	AR83.55-P-5310-02MNM
11	Place refrigerant compressor (A9) on belt pulley for 10 minutes and then turn belt pulley to and fro approx. 90° 3 times.	Engine 654.9 in model 213 (except 213.011/016/211/216) with code 1U6 (R744 refrigerant) When installing new refrigerant compressor (A9). This serves to fill the area surrounding the slide ring seal with oil.
12	Position refrigerant compressor (A9) in engine compartment and screw in screws (3, 4, 5).
13	Tighten screws (3, 4, 5).	Bolt, refrigerant compressor to oil filter/major assembly carrier/crankcase/carrier	*BA83.55-P-1001-02B
14	Remove stop plugs and protective covers, mount low-pressure line (10) and tighten screw (9).
	Compressor oils (specification 362.1)	Replace sealing rings and moisten with compressor oil.	BB00.40-P-0362-01A
		Bolt, refrigerant line to refrigerant compressor	*BA83.55-P-1002-02B
		Assembly tool	Fig 1
		Set of protective caps	Fig 2
		Record plug	Fig 3
15	Remove stop plugs and protective covers, install high-pressure line (8) and tighten screw (7).
	Compressor oils (specification 362.1)		BB00.40-P-0362-01A
		Replace sealing rings and moisten with compressor oil.
		Bolt, refrigerant line to refrigerant	*BA83.55-P-1002-02B
		compressor
		Assembly tool	Fig 1
		Set of protective caps	Fig 2
		Record plug	Fig 3
16	Connect and lock electrical connector (6).
17	Install alternator (G2).		AR15.40-P-5032OLC
18	Fill air conditioning.		AR83.30-P-1760LW
19	Perform break-in of refrigerant compressor (A9).	When installing new refrigerant compressor (A9). Menu item: Control unit adaptation.	AD00.00-P-2000-04B