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Remove/Install Front Evaporator Shutoff Valve - AR83.30-P-5510LW

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Model 205.012/013/047/053/054/147/212/213/247/253 

Model 253.311/353/354/911/953/954 

Model 293 

Fig 1: Front Evaporator Shutoff Valve Components Location - Model 253.953
G14547193DANGERWARNINGREMOVINGINSTALLINGTORQUE SPECIFICATIONTORQUE SPECIFICATIONINSTALLATION IMPORTANTSPECIAL TOOLTORQUE SPECIFICATIONTORQUE SPECIFICATIONINSTALLATION IMPORTANTSPECIAL TOOLCourtesy 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 R1234y 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
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. AS83.00-Z-0006-01A
Notice  Protect air conditioning circuit and components from moisture when carrying out repair work   AH83.30-P-0005-01KOA
  Notes on handling refrigerant R134a   AH83.30-P-0003-01KOA
  Notes on handling refrigerant R1234yf   AH83.30-P-0003-02A
REMOVINGINSTALLING Remove/install     
1 Discharge air conditioning system. Model 205.012/013/047/053/054/147/212/213/247/253
Model 253.311/353/354/911/953/954
AR83.30-P-1760LW 
    Model 293 AR83.30-P-1760EQ
2 Remove windshield wiper system.   AR82.30-P-6400LW
3 Disconnect electrical connector (1).    
4 Unbolt nut (2). TORQUE SPECIFICATION Model 205.012/013/047/053/054/147/212/213/247/253
Model 253.311/353/354/911/953/954Nut, refrigerant line to front evaporator shutoff valve
*BA83.30-P-1009-01Q 
    TORQUE SPECIFICATION Model 293Nut, refrigerant line to front evaporator shutoff valve *BA83.30-P-1007-01V 
5 Remove front evaporator shutoff valve (Y19/3) from high-pressure line and seal openings. INSTALLATION IMPORTANT Replace seal.
SPECIAL TOOL Record plug
Fig 2
6 Unscrew nut (3). TORQUE SPECIFICATION Model 205.012/013/047/053/054/147/212/213/247/253
Model 253.311/353/354/911/953/954Nut, refrigerant line to front evaporator shutoff valve
*BA83.30-P-1009-01Q 
    TORQUE SPECIFICATION Model 293Nut, refrigerant line to front evaporator shutoff valve *BA83.30-P-1007-01V 
7 Remove front evaporator shutoff valve (Y19/3) from high-pressure line (4) and seal openings. INSTALLATION IMPORTANT Replace seal.
SPECIAL TOOL Record plug
Fig 2
8 Install in the reverse order.    
AIR CONDITIONING

Number Designation Model 293
BA83.30-P-1007-01V Nut, refrigerant line to front evaporator shutoff valve Nm 12
AIR CONDITIONING

Number Designation Model 205 Model 253
BA83.30-P-1009-01Q Nut, refrigerant line to front evaporator shutoff valve Nm 12 12
Fig 2: Identifying Record Plug (129 589 00 91 00)
G11971934Courtesy of MERCEDES-BENZ USA