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Home >> Mercedes Benz >> 2025 >> GLA250 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System -- 247 Chassis >> Testing & Repair >> Remove/Install Desiccant Cartridge >> Remove/Install Desiccant Cartridge - AR83.30-P-6521MFG

Remove/Install Desiccant Cartridge - AR83.30-P-6521MFG

Model 118, 177, 247 with engine 139 

Shown on model 177 

Fig 1: AC Desiccant Cartridge Components Location - Model 247 With Engine 139 (Shown On Model 177)
G16065215DANGERREMOVINGINSTALLINGTORQUE SPECIFICATIONINSTALLATION IMPORTANTIMPORTANTSPECIAL TOOLTORQUE SPECIFICATIONTORQUE SPECIFICATIONWARNINGCourtesy 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. AS83.00-Z-0007-01A 
Notice  Protect air conditioning circuit and components from moisture when carrying out repair work   AH83.30-P-0005-01KOA 
Notice  Procedure for a damaged or leaky air conditioning system   AH83.30-P-0004-01KOA 
  Notes on handling refrigerant R1234yf   AH83.30-P-0003-02A 
REMOVINGINSTALLING Remove/install     
1 Discharge air conditioning system.   AR83.30-P-1760MFA 
2 Remove front bumper.   AR88.20-P-2000MFA
3 Remove bolt (2). TORQUE SPECIFICATION Bolt, refrigerant line to desiccant cartridge *BA83.30-P-1010-01T 
4 Remove refrigerant line (3) and refrigerant line (4) and seal exposed connections with suitable stop plugs. INSTALLATION IMPORTANT : Replace gaskets.
IMPORTANT Record plug
Fig 3
    SPECIAL TOOL Assembly tool Fig 2
5 Push air duct segment (5) to one side and remove screw (6). TORQUE SPECIFICATION M6x1 *BA00.10-P-1002-04A 
6 Push air duct segment (8) to one side and remove screw (7). TORQUE SPECIFICATION M6x1 *BA00.10-P-1002-04A 
7 Remove receiver drier (1).    
8 Install in the reverse order.    
WARNING Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
9 Perform engine test run, check air conditioning system for proper operation and leak tightness while doing so.    
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6x1 Nm 9 13
AIR CONDITIONING

Number Designation Model 118 Model 177
BA83.30-P-1010-01T Bolt, refrigerant line to desiccant cartridge Nm 10 10
AIR CONDITIONING

Number Designation Model 247
BA83.30-P-1010-01T Bolt, refrigerant line to desiccant cartridge Nm 10
Fig 2: Identifying Assembly Tool (000 589 93 63 00)
G12939678Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Record Plug (129 589 00 91 00)
G11065549Courtesy of MERCEDES-BENZ USA