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

MODEL 453 with ENGINE 281 with CODE I01 (Automatic air conditioning) 

MODEL 453 with ENGINE 281 with CODE I77 (Air conditioning, manual) 

G12097075Courtesy of MERCEDES-BENZ USA
  Risk of explosion  caused by welding or soldering work on closed air conditioning system. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury  to skin and eyes caused by contact with liquid refrigerant. Do not 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 areas. Carry out repair work on the air conditioning system circuit only after the system has been drained. AS83.00-Z-0001-01A 
REMOVINGINSTALLING Remove/install     
1 Drain air conditioning system, then disconnect air conditioning service unit   AR83.30-P-1760SR 
2 Lower and position rear drive module   AR01.00-P-3050SR
3 Loosen poly-V belt (9) and remove   AR13.22-P-1202SR
4 Unscrew screw/bolt (6) and rotate bracket (7) to one side    
5 Unscrew screw/bolt (3) and remove refrigerant line (5) from refrigerant compressor (A9) INSTALLATION IMPORTANT : Replace seal.
TORQUE SPECIFICATION Bolt, low-pressure line to A/C compressor
*BA83.30-P-1008-01G 
6 Seal opening of refrigerant line (5) and refrigerant compressor (A9) with a stop plug SPECIAL TOOL Record plug Figure
7 Unscrew screw/bolt (10) and remove refrigerant line (11) from refrigerant compressor (A9) INSTALLATION IMPORTANT : Replace seal.
TORQUE SPECIFICATION Bolt, high-pressure line to A/C compressor
*BA83.30-P-1009-01G 
8 Seal opening of refrigerant line (11) and refrigerant compressor (A9) with a stop plug SPECIAL TOOL Record plug Figure
9 Disconnect electrical connector (2) from refrigerant compressor (A9)    
10 Unscrew screws/bolts (1, 4, 8) and remove refrigerant compressor (A9) downwards IMPORTANT Secure A/C compressor (A9) to prevent it from falling down.
TORQUE SPECIFICATION Bolt, refrigerant compressor to engine
*BA83.55-P-1001-01SR 
11 Install in the reverse order    
12
REFER TO SELF-DIAGNOSTIC SYSTEMS
Connect diagnostic unit and perform break-in of refrigerant compressor (A9) When installing new refrigerant compressor (A9).
IMPORTANT Menu option: Control unit adaptations.
AD00.00-P-2000-06SR
AIR CONDITIONING

Number Designation Model 453
BA83.30-P-1008-01G Bolt, low-pressure line to A/C compressor Nm 8
AIR CONDITIONING

Number Designation Model 453
BA83.30-P-1009-01G Bolt, high-pressure line to A/C compressor Nm 8
REFRIGERANT COMPRESSOR

Number Designation ENGINE 281
BA83.55-P-1001-01SR Bolt, refrigerant compressor to engine Nm 25
Fig 1: Identifying Record Plug (129 589 00 91 00)
G11972128Courtesy of MERCEDES-BENZ USA