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Remove/Install Refrigerant Compressor - AR83.55-P-5310RG

Model 190 (except 190.381) 

MODIFICATION NOTES

04.10.2016 Safety note added AS83.00-Z-0006-01A  
28.09.2016 Safety note added AS83.00-Z-0007-01A  
28.09.2016 "Technical note" added AH54.00-P-0001-01A  
28.09.2016 General note added AH83.30-P-0003-02A  
Fig 1: Refrigerant Compressor Components Location - Model 190 (Except 190.381)
G16685852DANGERWARNINGREMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSREMOVAL IMPORTANTREFER TO CAPACITIES & SPECIFICATIONSINSTALLATION IMPORTANTTORQUE SPECIFICATIONNOTESSPECIAL TOOLREFER TO CAPACITIES & SPECIFICATIONSINSTALLATION IMPORTANTTORQUE SPECIFICATIONNOTESSPECIAL TOOLTORQUE SPECIFICATIONTORQUE SPECIFICATIONINSPECTCourtesy of MERCEDES-BENZ USA
DANGER 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.
Model 190 (except 190.381)
with code 2U8 (Alternative refrigerant)
AS83.00-Z-0007-01A
WARNING 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.
Model 190 (except 190.381)
except code 2U8 (Alternative refrigerant)
AS83.00-Z-0006-01A
Notice  Protect air conditioning circuit and components from moisture when carrying out repair work   AH83.30-P-0005-01KOA
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Notes on working in engine compartment   AH60.00-P-0042-01RG
Notice  Procedure for a damaged or leaky air conditioning system   AH83.30-P-0004-01KOA
  Notes on handling refrigerant R1234yf Model 190 (except 190.381)
with code 2U8 (Alternative refrigerant)
AH83.30-P-0003-02A
  Notes on handling refrigerant R134a Model 190 (except 190.381)
except code 2U8 (Alternative refrigerant)
AH83.30-P-0003-01KOA
REMOVINGINSTALLING Remove/install     
1 Perform initial startup of refrigerant compressor (10) When replacing the refrigerant compressor (10).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
2 Release power steering pump (1) with connected hydraulic lines   AR46.30-P-0500RG
    REMOVAL IMPORTANT : The hydraulic lines may not be unscrewed from the power steering pump (1).  
3 Drain air conditioning system   AR83.30-P-1760RQ 
4 Remove screw/bolt (2) from refrigerant compressor (10) and remove refrigerant line (3)    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    INSTALLATION IMPORTANT The sealing ring of the refrigerant line (3) must be replaced and coated with compressor oil.  
    TORQUE SPECIFICATION Bolt, mounting for refrigerant line to A/C compressor *BA83.30-P-1010-01M 
5 Seal openings of refrigerant line (3) and of refrigerant compressor (10) using suitable stop plugs NOTES
The openings of the refrigerant lines (3) and the refrigerant compressor (10) must be sealed. Otherwise, penetrating dirt and moisture will damage the air conditioning system.
 
    SPECIAL TOOL Record plug Fig 2
6 Remove bolt (4) from refrigerant compressor (10) and remove refrigerant line (5)    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    INSTALLATION IMPORTANT The sealing ring of the refrigerant line (5) must be replaced and moistened with compressor oil.  
    TORQUE SPECIFICATION Bolt, mounting for refrigerant line to A/C compressor *BA83.30-P-1010-01M 
7 Seal openings of refrigerant line (5) and of refrigerant compressor (10) using suitable stop plugs NOTES
The openings of the refrigerant lines (3) and the refrigerant compressor (10) must be sealed. Otherwise, penetrating dirt and moisture will damage the air conditioning system.
 
    SPECIAL TOOL Record plug Fig 2
8 Disconnect cable tie (6) and put electrical connector to one side    
9 Release and disconnect electrical connection (7)    
10 Remove bolt (8) When replacing the refrigerant compressor (10).  
    TORQUE SPECIFICATION Model 190 (except 190.381) with engine 178.9 *BA83.55-P-1002-02A 
    Bolt, refrigerant compressor bracket to bracket for additional assemblies/crankcase  
11 Remove refrigerant compressor (10)    
12 Remove bracket (9) from refrigerant compressor When replacing the refrigerant compressor (10).  
    TORQUE SPECIFICATION Model 190 (except 190.381) with engine 178.9 *BA83.55-P-1001-02A 
    Bolt, refrigerant compressor to refrigerant compressor bracket  
13 Install in the reverse order    
INSPECT Check     
14 Evacuate air conditioning system, refill it, and then check the system to make sure that it functions correctly and does not leak   AR83.30-P-1760RQ 
AIR CONDITIONING

Number Designation Model 190
BA83.30-P-1010-01M Bolt, mounting for refrigerant line to A/C compressor Nm 20
REFRIGERANT COMPRESSOR

Number Designation Engine 178
BA83.55-P-1001-02A Bolt, refrigerant compressor to refrigerant compressor bracket Nm 20
REFRIGERANT COMPRESSOR

Number Designation Engine 178
BA83.55-P-1002-02A Bolt, refrigerant compressor bracket to bracket for additional assemblies/crankcase Nm 20
Fig 2: Identifying Record Plug (129 589 00 91 00)
G09975019Courtesy of MERCEDES-BENZ USA