Refrigerant Compressor, Remove/Install - AR83.55-P-5310LW

Engine 274 in model 205 

except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) 

Engine 274 in model 213 

except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) 

Engine 274 in model 253 (except 253.354/954) 

Shown on model 205 

Courtesy of MERCEDES-BENZ USA

Shown on model 205 

Courtesy of MERCEDES-BENZ USA

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. Engine 274 in model 213 with code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AS83.00-Z-0008-01A
	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 274 in model 205 with code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 with code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954) with code 2U8 (Alternative refrigerant)	AS83.00-Z-0007-01A
	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. Engine 274 in model 205 except code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 except code 1U6 (R744 refrigerant) except code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954) except code 2U8 (Alternative refrigerant)	AS83.00-Z-0006-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	Notes on handling refrigerant R744	Engine 274 in model 213 with code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AH83.30-P-0003-03A
	Notes on handling refrigerant R134a	Engine 274 in model 205 except code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 except code 1U6 (R744 refrigerant) except code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954) except code 2U8 (Alternative refrigerant)	AH83.30-N-0003-01A
	Notes on handling refrigerant R1234yf	Engine 274 in model 205 with code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 with code 2U8 (Alternative refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954) with code 2U8 (Alternative refrigerant)	AH83.30-P-0003-02A
	Remove
1	Discharge air conditioning system.	Engine 274 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954)	AR83.30-P-1760LW
2	Remove engine air intake duct (1).
3	Remove fan unit.	Engine 274.9 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR20.40-P-5050LWB
		Engine 274 in model 213 except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR20.40-P-5050OLC
		Engine 274.9 in model 253 (except 253.354/954)	AR20.40-P-5050RF
4	Install protective plate (2).
	Protective plate for cooling module		WF58.50-P-0110-04A
5	Remove poly-V-belt.	Engine 274 in model 253 (except 253.354/954) Engine 274.9 in model 205 (except 205.047/147/247) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR13.20-P-0001MRA
		Engine 274 in model 213 (except 213.050) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR13.22-P-1202MRD
6	Release and disconnect electrical connector (6).
7	Remove front and center lower engine compartment paneling.	Engine 274 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954)	AR61.20-P-1105LW
		Engine 274 in model 213 except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR61.20-P-1105LWE
	8	Remove screw (7).
9	Remove high-pressure line (8) and seal openings with suitable stop plugs.	Record plug	Fig 1
10	Remove screw (9).
11	Remove low-pressure line (10) and seal openings with suitable stop plugs.	Record plug	Fig 1
12	Remove screws (4, 5).
13	Remove screw (3) and remove refrigerant compressor (11) upwards from engine compartment.
	Install
14	Correct oil level of refrigerant compressor (11).	Engine 274 in model 213 with code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) When replacing the refrigerant compressor (11)
			AR83.55-P-5310-02MNM
	Compressor oils (specification 362.3)		BB00.40-P-0362-03A
		Oil drain screw (CO2) on refrigerant compressor	*BA83.55-P-1012-01M
15	Place refrigerant compressor (11) for 10 minutes onto belt pulley and then turn belt pulley to and fro 3 times by approx. 90°.	Engine 274 in model 213 with code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) When replacing the refrigerant compressor (11) This serves to fill the area surrounding the slide ring seal with oil.
16	Position refrigerant compressor (11) and tighten screw (3) lightly by hand.
17	Tighten screws (3, 4, 5).	Screw/bolt, refrigerant compressor to timing case/crankcase/engine support	*BA83.55-P-1001-01M
18	Remove stop plug, install low-pressure line (10) with sealing ring and tighten screw (9).	Replace seal. Moisten sealing ring with compressor oil. Engine 274 in model 213 with code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Screw, refrigerant line (CO2) to refrigerant compressor	*BA83.55-P-1011-01M
		Engine 274 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 except code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954) Bolt, refrigerant line to refrigerant compressor	*BA83.55-P-1003-01M
		Record plug	Fig 1
19	Remove stop plug, install high-pressure line (8) with sealing ring and tighten screw (7).	Replace seal. Moisten sealing ring with compressor oil.
		Engine 274 in model 213 with code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Screw, refrigerant line (CO2) to refrigerant compressor	BA83.55-P-1011-01M
		Engine 274 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 except code 1U6 (R744 refrigerant) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954) Bolt, refrigerant line to refrigerant compressor	*BA83.55-P-1003-01M
		Record plug	Fig 1
20	Install the front and lower center engine compartment lining.	Engine 274 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954)	AR61.20-P-1105LW
		Engine 274 in model 213 except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR61.20-P-1105LWE
21	Put together electrical connector (6) and lock.
22	Install poly-V-belt.	Engine 274 in model 253 (except 253.354/954) Engine 274.9 in model 205 (except 205.047/147/247) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR13.20-P-0001MRA
		Engine 274 in model 213 (except 213.050) except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR13.22-P-1202MRD
23	Remove protective plate (2)..
24	Install fan unit.	Engine 274 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR20.40-P-5050LWB
		Engine 274 in model 213 except code ME06 (Hybrid drive 60 kW variant (incl. plugin))	AR20.40-P-5050OLC
		Engine 274 in model 253 (except 253.354/954)	AR20.40-P-5050RF
25	Install engine air intake duct (1).
26	Fill air conditioning.	Engine 274 in model 205 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 213 except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Engine 274 in model 253 (except 253.354/954)	AR83.30-P-1760LW
27	Perform commissioning of refrigerant compressor (11) with vehicle diagnosis system, and read out and erase the fault memory.	When replacing the refrigerant compressor (11)
		Menu item: Control unit adaptations	AD00.00-P-2000-04B
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.
28	Perform engine test run, while doing so check engine and air conditioning system for proper operation and leak tightness		AS00.00-Z-0005-01A

Fig 1: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA