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Home >> Mercedes Benz >> 2015 >> GL63 AMG >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 166 Chassis - 2 Of 2 >> Testing & Repair >> Remove/install refrigerant compressor - AR83.55-P-5300GQ

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

ENGINES 157, 276, 278, 642, 651 in MODEL 166 

Fig 1: Identifying Refrigerant Compressor Remove/Install Components
G09983277Courtesy of MERCEDES-BENZ USA

Shows model 166.057 

REMOVINGINSTALLING Remove/install     
DANGER 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 refrigerants. 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 areas. Carry out repair work on the air conditioning system circuit only after the system has been emptied. AS83.00-Z-0001-01A
1 Drain air conditioning system   AR83.30-P-1760CW 
2 Switch off ignition    
3 Remove upper engine cover Engine 157, 276, 278, 642  
4 Slacken poly-V belt and remove Engine 157, 278 AR13.20-P-0001MLJ
Engine 276 AR13.20-P-0001GQ
Engine 642 AR13.20-P-0001OGR
Engine 651 AR13.20-P-0001GQA
5 Remove hydraulic pump from active roll stabilization Vehicles with code (468) ACTIVE CURVE SYSTEM AR32.34-P-0030GQ
6 Release and detach electrical connector (1) from refrigerant compressor (A9)    
7 Expose electrical feed line (2) and fasten to one side    
CLEAN Clean     
8 Clean and dry area surrounding line connections for lines (3) on refrigerant compressor (A9) Cleaner from package *BR00.45-Z-1028-04A 
9 Detach lines (3) from refrigerant compressor (A9) IMPORTANT Seal off connections immediately using stop plugs SPECIAL TOOL .
INSTALLATION IMPORTANT Replace sealing rings and coat with compressor oil.		  
TORQUE SPECIFICATION Engine 157, 276, 278 *BA83.55-P-1003-01M 
TORQUE SPECIFICATION Engine 642 *BA83.55-P-1002-01A 
TORQUE SPECIFICATION Engine 651 *BA83.55-P-1003-01W 
SPECIAL TOOL Figure
Compressor oil MB 362.0 compressor oil A 001 989 08 03
10 Remove screws/bolts (4) and remove refrigerant compressor (A9) INSTALLATION IMPORTANT Screw on ground line (5) at same time.  
TORQUE SPECIFICATION Engine 157, 276, 278 *BA83.55-P-1001-01M 
TORQUE SPECIFICATION Engine 642 *BA83.55-P-1005-01A 
TORQUE SPECIFICATION Engine 651 *BA83.55-P-1001-01W 
TORQUE SPECIFICATION Engine 651 *BA83.55-P-1002-01W 
11 Install in the reverse order    
12 Break in refrigerant compressor (A9) using STAR DIAGNOSIS When replacing refrigerant compressor (A9)
IMPORTANT Menu option: Control unit adaptations.		 AD00.00-P-2000-04A
REFRIGERANT COMPRESSOR

Number Designation Engine 157 Engine 276 Engine 278
BA83.55-P-1001-01M Screw/bolt, refrigerant compressor to timing case/crankcase/engine support Nm 20 20 20
BA83.55-P-1003-01M Screw/bolt, refrigerant line to refrigerant compressor Nm 20 20 20
REFRIGERANT COMPRESSOR

Number Designation Engine 642 in model 166
BA83.55-P-1002-01A Screw/bolt, refrigerant lines to refrigerant compressor Nm 20
*BA83.55-P-1005-01A  Bolt, refrigerant compressor Nm 20
REFRIGERANT COMPRESSOR

Number Designation Engine 651 except model 204, 207
BA83.55-P-1001-01W Screw/bolt, refrigerant compressor to major assembly carrier Nm 20
*BA83.55-P-1002-01W  Bolt, refrigerant compressor to engine support Nm 20
*BA83.55-P-1003-01W  Refrigerant line to refrigerant compressor Nm 20
Fig 2: Identifying Set Of Stop Plugs (129 589 00 91 00)
G07473018Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1028-04A Cleaner from package -
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