LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2022 >> CLS450 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 257 Chassis 2 Of 2 >> Testing & Repair >> Remove/Install Desiccant Cartridge - AR83.30-P-6521MSA

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

Model 257, 290 with engine 256 

Shown on model 257 

G14549689Courtesy of MERCEDES-BENZ USA
Fig 1: Desiccant Cartridge Component Location - Model 257 With Engine 256
G14549690DANGERWARNINGREMOVINGINSTALLINGIMPORTANTIMPORTANTTORQUE SPECIFICATIONTORQUE SPECIFICATIONTORQUE SPECIFICATIONTORQUE SPECIFICATIONINSTALLATION IMPORTANTCourtesy 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 257 with engine 256
with code 2U8 (Refrigerant R-1234yf)
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 257 with engine 256
except code 2U8 (Refrigerant R-1234yf)
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 Model 257 with engine 256
except code 2U8 (Refrigerant R-1234yf)
AH83.30-P-0003-01KOA
  Notes on handling refrigerant R1234yf Model 257 with engine 256
with code 2U8 (Refrigerant R-1234yf)
AH83.30-P-0003-02A
REMOVINGINSTALLING Remove/install     
1 Discharge air conditioning system.   AR83.30-P-1760FR
2 Remove upper engine cover (12).   AR01.10-P-2405MSA
3 Remove engine air intake duct (13).    
4 Remove retaining clips and remove cold air intake (14).    
5 Drill out rivets of support plates of front bumper at the crossmember. IMPORTANTCommercially available devices/tools 
drill
riveter
IMPORTANT Remove drilling chips.
 
6 Remove screws of supports of front bumper.    
7 Remove screws (15), remove retaining clips and remove crossmember (16). TORQUE SPECIFICATION M6 X 1 *BA00.10-P-1002-04A 
    TORQUE SPECIFICATION M8 X 1 *BA00.10-P-1004-04A 
8 Remove plug (3). TORQUE SPECIFICATION Model 290 with engine 256 Plug to condenser *BA83.30-P-1007-01S 
    TORQUE SPECIFICATION Model 257 with engine 256 Plug to condenser *BA83.30-P-1008-01R 
9 Remove circlip (4).    
10 Screw in screw M12 (5) into drier head (6) and pull out drier head (6).    
11 Remove drier module holder (8) at pin (7) using suitable pliers.    
12 Remove drier module riser line (9) together with drier module filter housing (10). INSTALLATION IMPORTANT If the packaging of a new desiccant bag (11) is damaged, do not install it.
Place new desiccant bag (11) onto drier module riser line (9).
 
13 Install in the reverse order.    
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6 X 1 Nm 9 13
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1004-04A M8 X 1 Nm 23 33
AIR CONDITIONING

Number Designation Model 290
BA83.30-P-1007-01S Plug to condenser Nm 4
AIR CONDITIONING

Number Designation Model 257
BA83.30-P-1008-01R Plug to condenser Nm 4