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Home >> Mercedes Benz >> 2020 >> SLC43 AMG Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 172 Chassis - 2 Of 2 >> Testing & Repair >> Remove/Install Desiccant Cartridge - AR83.30-P-6521VM

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

Model 171.4 (except 171.473) as of 3/3/08 

with code 580 (Air-conditioning system) 

except code 809 (Model year 2009) 

Model 171.4 (except 171.473) 

with code 580 (Air-conditioning system) 

with code 809 (Model year 2009) 

Model 171.4 (except 171.473) 

with code 581 (Automatic air conditioning) 

except code 809 (Model year 2009) 

Model 171.4 (except 171.473) 

with code 581 (Automatic air conditioning) 

with code 809 (Model year 2009) 

Model 172.4 

with code 580 (Air-conditioning system) 

Model 172.4 

with code 581 (Automatic air conditioning) 

Fig 1: Desiccant Cartridge Component Location - Model 172.4 With Codes 580 And 581 (Shown On Model 171.4)
G13848747Courtesy of MERCEDES-BENZ USA

Shown on model 171.4 

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
  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
  Procedure for a damaged or leaky air conditioning system   AH83.30-N-0004-01A
  Notes on handling refrigerant R1234yf   AH83.30-P-0003-02A
  Notes on handling refrigerant R134a   AH83.30-N-0003-01A
REMOVING Remove     
1 Drain air conditioning system   AR83.30-P-1760V 
2 Disconnect filler connections from air conditioning service unit    
3 Remove screw plug (7) from condenser    
4 Insert dismantling tool (9) into holder (10) of desiccant cartridge (8) IMPORTANT Dismantling tool (9) is in repair kit.  
5 Remove desiccant cartridge (8) by rotating dismantling tool (9) left and right and simultaneously pulling up and out of the condenser    
INSTALLING Install     
6 Check packaging of new desiccant bag (11) for damage, then unpack desiccant bag (11) NOTES
After opening the packaging, the desiccant bag (11) must be installed within a period of 20 minutes at the latest.
Otherwise the desiccant bag (11) is unusable.
If packaging is leaky

Dispose of desiccant bag (11).
 
7 Insert new desiccant bag (11) into new holder (10)    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    IMPORTANT Moisten sealing ring of holder (10) using compressor oil.  
8 Insert desiccant cartridge (8) into condenser    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    NOTES
The receiver drier (8) must be inserted carefully by hand and without any tools.
Otherwise the desiccant bag (11) will be damaged.
NOTES
Avoid tilting the holder (10).
Otherwise the holder (10) may break apart.
IMPORTANT Moisten sealing ring of holder (10) with compressor oil.
 
9 Tighten screw plug (7)    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    IMPORTANT Moisten sealing ring of screw plug (7) using compressor oil.  
    TORQUE SPECIFICATION Plugs to capacitor *BA83.30-P-1006-01D 
INSPECT Check     
10 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-1760V 
AIR CONDITIONING

Number Designation Model 171 (except 171.473) Model 172
BA83.30-P-1006-01D Plugs to capacitor Nm 20 20