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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 463 Chassis (2 Of 3) >> Testing & Repair >> Remove/Install Refrigerant Pressure Sensor - AR83.30-P-5430XGA

Remove/Install Refrigerant Pressure Sensor - AR83.30-P-5430XGA

Model 463 with engine 176, 177 

as of model year 2019 

G13660086Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
  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. AS83.00-Z-0007-01A
  Protect air conditioning circuit and components from moisture when carrying out repair work   AH83.30-N-0005-01A
  Note on calculation of tightening torque when using insertion or socket tools with various effective lengths   AH00.00-P-0015-01CW
  Notes on handling refrigerant R1234yf   AH83.30-P-0003-02A
REMOVINGINSTALLING Remove/install     
1 Discharge air conditioning system.   AR83.30-P-1760XG 
2 Remove bumper.   AR88.20-P-2000XG
3 Remove front lower engine compartment lining.   AR61.20-P-1105XG
4 Remove lower air duct segment in the area of the refrigerant pressure sensor (B12).    
5 Remove refrigerant line (21) from condenser (22), hang to one side inward and seal openings with suitable stop plugs INSTALLATION IMPORTANT Install new sealing rings  
    TORQUE SPECIFICATION High-pressure line to condenser *BA83.30-P-1005-01C 
    SPECIAL TOOL Record plug Fig 2
6 Disconnect electrical connector (20) from refrigerant pressure sensor (B12).    
7 Remove refrigerant pressure sensor (B12). TORQUE SPECIFICATION Pressure sensor to condenser *BA83.30-P-1019-01C 
    SPECIAL TOOL Box wrench bit SW 27 mm Fig 1
8 Install in the reverse order.    
AIR CONDITIONING

Number Designation Model 463 as of model year 2019
BA83.30-P-1005-01C High-pressure line to condenser Nm 8
AIR CONDITIONING

Number Designation Model 463 as of model year 2019
BA83.30-P-1019-01C Pressure sensor to condenser Nm 10
Fig 1: Identifying Box Wrench Bit SW 27_MM (000 589 78 03 00)
G13660087Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Record Plug (129 589 00 91 00)
G13660088Courtesy of MERCEDES-BENZ USA