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Home >> Mercedes Benz >> 2020 >> S560e >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - 222 Chassis (2 Of 4) >> Testing & Repair >> Remove/Install Desiccant Cartridge - AR83.30-P-6521LF

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

Model 217, 222 

Except Code 1U6 (R744 refrigerant) 

G15367391Courtesy of MERCEDES-BENZ USA

Shown On Model 222 With Code P20 (Driving Assistance Package Plus) 

G15367392Courtesy of MERCEDES-BENZ USA

Shown On Model 217 With Code 610 (Night View Assist) and code P20 (Driving Assistance Plus Package) 

Shown On Model 222 

Fig 1: Desiccant Cartridge Components Location - Model 222 Except Code 1U6
G15367393DANGERWARNINGREMOVINGIMPORTANTINSTALLINGIMPORTANTIMPORTANTREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy 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. Model 217, 222
with code 2U8 (Alternative refrigerant)
except code 1U6 (R744 refrigerant)
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 217, 222
except code 1U6 (R744 refrigerant)
except code 2U8 (Alternative refrigerant)
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 R1234yf Model 217, 222
with code 2U8 (Alternative refrigerant)
except code 1U6 (R744 refrigerant)
AH83.30-P-0003-02A
  Notes on handling refrigerant R134a Model 217, 222
except code 1U6 (R744 refrigerant)
except code 2U8 (Alternative refrigerant)
AH83.30-P-0003-01KOA
REMOVING Remove     
1 Drain air conditioning system   AR83.30-P-1760LF 
2 Detach sealing (2) in area of front module    
3 Remove engine intake air ducts (3) IMPORTANT Depending on the engine involved, only one engine air intake duct (3) is installed.  
4.1 Remove front bumper Model 217
except code 1U6 (R744 refrigerant)
 
      AR88.20-P-2000LC
4.2 Remove radiator grille Model 222
except code 1U6 (R744 refrigerant)
 
      AR88.40-P-4001LF
5 Open retaining clips (5) and unhook hood release cable (4)    
6 Release and disconnect electrical connector (7) from front long range radar sensor (B29) Model 217, 222
with code P20 (Driving assistant package Plus)
except code 1U6 (R744 refrigerant)
 
7 Release and disconnect electrical connector (7.1) from infrared camera for 2 Night View Assist (B84/11) Model 217, 222
with code 610 (Night view assist)
except code 1U6 (R744 refrigerant)
 
8 Unclip spray nozzle (18) from infrared camera for 2 Night View Assist (B84/11) Model 217, 222
with code 610 (Night view assist)
except code 1U6 (R744 refrigerant)
 
9 Remove bolts (6) from reinforcement (1)    
10 Remove reinforcement (1) with upper radiator guides (17)    
11 Unscrew drier cap (8)    
12 Remove circlip (9)    
13 Screw bolt M12 into drier head (11) and pull out drier head (11)    
14 Use pliers to pull out drier module bracket (16) at pin (10)    
INSTALLING Install     
15 Apply new desiccant bag (13) on drier module riser line (12) IMPORTANT If the packaging of the new desiccant bag (13) is damaged, do not install it.  
16 Install drier module bracket (16) with new desiccant bag (13)    
17 Remove bolt M12 from drier head (11)    
18 Install retaining ring (9)    
19 Screw in drier cap (8)    
20 Install reinforcement (1) with upper radiator guides (17)    
21 Tighten bolts (6) on reinforcement (1)    
22 Clip in spray nozzle (18) for infrared camera for 2 Night View Assist (B84/11) Model 217, 222
with code 610 (Night view assist)
except code 1U6 (R744 refrigerant)
 
23 Plug electrical connector (7.1) onto infrared camera for 2 Night View Assist (B84/11) until it locks in to place Model 217, 222
with code 610 (Night view assist)
except code 1U6 (R744 refrigerant)
 
24 Plug electrical connector (7) onto front long range radar sensor (B29) until it locks into place Model 217, 222
with code P20 (Driving assistant package Plus)
except code 1U6 (R744 refrigerant)
 
25 Clip hood release cable (4) into retaining clips (5) and close retaining clips (5)    
26.1 Install radiator trim Model 222
except code 1U6 (R744 refrigerant)
 
      AR88.40-P-4001LF
26.2 Install front bumper Model 217
except code 1U6 (R744 refrigerant)
 
      AR88.20-P-2000LC
27 Install engine air intake ducts (3) IMPORTANT Depending on the engine involved, only one engine air intake duct (3) is installed.  
28 Install sealing (2)    
29 Fill air conditioning system   AR83.30-P-1760LF 
30 Perform initialization of front long range radar sensor (B29) using a diagnostic system Model 217, 222
with code P20 (Driving assistant package Plus)
except code 1U6 (R744 refrigerant)
 
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
31 Check air conditioning for proper operation