Remove/install refrigerant compressor - AR83.55-P-5300SX

ENGINES 272 (except 272.974) in MODEL 221/ENGINES 273 in MODEL 216, 221 

Fig 1: Identifying Refrigerant Compressor Remove/Install Components - Shown On Model 221 (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Shown on model 221 

Fig 2: Identifying Refrigerant Compressor Remove/Install Components - Shown On Model 221 (2 Of 2)

Courtesy of MERCEDES-BENZ USA

Shown on model 221 

	Remove/install
1	Discharge air conditioning system	Evacuate, refill and check air conditioner for leaks and proper operation.	AR83.30-P-1760SX
2	Disconnect air conditioning evacuation, recycling and charging unit for refrigerant R134a
3	Remove air filter housing		AR09.10-P-1150SX
4	Remove fan shroud		AR20.40-P-6800SX
5	Detach low-pressure line (3) at separation point (arrow) first, then remove from refrigerant compressor (A9). Following this, seal openings of low-pressure line (3) and refrigerant compressor (A9)	Renew sealing ring of low-pressure line (3) and wet with compressor oil.
			*BA83.30-P-1006-01K
			Fig 3
6	Slacken poly-V belt and remove from belt pulley of refrigerant compressor (A9)	See: ↓
		Remove/install belt drive components	AR13.20-P-0001SX
7	Remove front and center engine compartment paneling	Model 216, Model 221 except CODE (Z07) Top protection	AR61.20-P-1105SX
8.1	Detach line (5) on front axle carrier (7)	On vehicles with code (487) Active Body Control (ABC)
9	Detach electrical connector from refrigerant compressor (A9)
10	Detach high pressure line (9) from condenser line terminal and seal openings of high pressure line (9) and condenser line terminal		*BA83.30-P-1009-01K
11	Remove bolts (11), remove refrigerant compressor (A9) forwards and put down on front axle carrier (7)	To protect the belt pulley of the refrigerant compressor (A9), cover the front axle carrier (7) with a rag. For vehicles with code (487) Active Body Control (ABC) the bracket (12) is to be positioned such that the poly-V belt runs without any obstruction.
			*BA83.55-P-1001-01M
12	Detach high pressure line (9) from refrigerant compressor (A9), seal openings of high pressure line (9) and refrigerant compressor (A9)	Replace sealing rings of high-pressure line (9) and moisten with compressor oil.
			*BA83.30-P-1007-01K
13	Remove refrigerant compressor (A9) upwards out of the engine compartment
14	Install in the reverse order
15	Perform run-in of the refrigerant compressor (A9)	Menu option: Control unit adaptations.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A

Fig 3: Identifying Detaching Tool (211 589 00 63 00)

Courtesy of MERCEDES-BENZ USA