Remove/Install Electric Refrigerant Compressor - AR83.55-P-5311LWH

Model 205 (except 205.053/054/253) with engine 274 

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

Model 205.053/054/253 

Model 253.354/954 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	Risk of death  when working on component parts and systems with U > = 30 V alternating voltage (AC) or U > = 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.	AS00.00-Z-0035-01A
	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.	AS83.00-Z-0007-01A
	General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system		AH00.00-Z-0300-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on battery		AH54.10-P-0001-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Notes on handling refrigerant R134a		AH83.30-N-0003-01A
	Notes on handling refrigerant R1234yf		AH83.30-P-0003-02A
	Remove
1	Perform power disconnect of high-voltage on-board electrical system.	Model 253.354/954	AR54.10-P-1150LVH
		Model 205.047/147/247 with engine 274 with code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 205.053/054/253	AR54.10-P-1150LW
2	Discharge air conditioning system.		AR83.30-P-1760LW
3	Remove engine cover (1).
4	Remove engine air intake duct (2).
5	Unhook coolant hose (3) from brackets and push to one side.
6	Remove screw (4) and push coolant line (5) to one side.
7	Disconnect electrical connection (6).
8	Detach electrical connector (7).
9	Remove screw and detach high-pressure line from electric refrigerant compressor (A9/5) and seal openings.	Record plug	Fig 2
		Set of protective covers	Fig 1
10	Remove screw and detach low-pressure line from electric refrigerant compressor (A9/5) and seal openings.	Record plug	Fig 2
		Set of protective covers	Fig 1
11	Remove front engine compartment lining and center engine compartment lining.		AR61.20-P-1105LW
12	Remove screw/bolt (8).	Model 205 (except 205.053/054/253) with engine 274 with code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 253.354/954
13	Remove screws/bolts (9).
14	Remove holder (10).	Model 205 (except 205.053/054/253) with engine 274 with code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 253.354/954
15	Secure electric refrigerant compressor (A9/5) against falling down and remove screw (11).
16	Lower vehicle.
17	Remove electric refrigerant compressor (A9/5) from above from engine compartment.	Carefully remove electric refrigerant compressor (A9/5). Otherwise adjacent components may be damaged.
	Install
18	Insert electric refrigerant compressor (A9/5) from above into engine compartment and secure against falling down.	Carefully insert electric refrigerant compressor (A9/5). Otherwise adjacent components may be damaged.
19	Raise vehicle.
20	Position electric refrigerant compressor (A9/5) and screw in screw (11).	Helper required. Screw/bolt, refrigerant compressor to timing case/crankcase/engine support	*BA83.55-P-1001-01M
21	Attach bracket (10).	Model 205 (except 205.053/054/253) with engine 274 with code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 253.354/954
22	Screw in screws (9).	Screw/bolt, refrigerant compressor to timing case/crankcase/engine support	*BA83.55-P-1001-01M
23	Screw in screw (8).	Model 205 (except 205.053/054/253) with engine 274 with code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 253.354/954
24	Lower vehicle.
25	Remove protective cover and replace sealing ring of low-pressure line.
26	Attach low-pressure line to electric refrigerant compressor (A9/5) and screw in screw.	Bolt, refrigerant line to refrigerant compressor	*BA83.30-P-1008-01Q
27	Remove protective cover and replace sealing ring of high-pressure line.
28	Attach high-pressure line to electric refrigerant compressor (A9/5) and screw in screw.	Bolt, refrigerant line to refrigerant compressor	*BA83.30-P-1008-01Q
29	Check receiver drier for re-usability.	If necessary, ↓ Replace drier cartridge.	AR83.30-P-6521LW
30	Install front engine compartment lining and center engine compartment lining.		AR61.20-P-1105LW
31	Connect electrical connector (7).
32	Connect electrical connector (6).
33	Screw in screw (4).
34	Hook coolant hose (3) into brackets.
35	Install engine air intake duct (2).
36	Install engine cover (1).
37	Fill air conditioning.		AR83.30-P-1760LW
38	Perform initial startup of high voltage on-board electrical system.	Model 205.047/147/247 with code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 205.053/054/253	AR54.10-P-1150LW
		Model 253.354/954	AR54.10-P-1150LVH
39	Connect vehicle diagnosis system and perform break in of electric refrigerant compressor (A9/5).	When replacing the electric refrigerant compressor (A9/5).
			AD00.00-P-2000-04B

Fig 1: Identifying Set Of Protective Covers (001 589 01 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA