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Home >> Mercedes Benz >> 2021 >> E53 AMG 2D Convertible >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - 238 Chassis (1 Of 2) >> Testing & Repair >> Drain, Evacuate And Recharge Air Conditioning, Check For Proper Operation And Check For Leaks - AR83.30-P-1760LWO

Drain, Evacuate And Recharge Air Conditioning, Check For Proper Operation And Check For Leaks - AR83.30-P-1760LWO

Model 238 

MODIFICATION NOTES

30.04.2018 Air conditioning/automatic air conditioning   BF83.00-P-1001-01O
18.05.2022 Air conditioning/automatic air conditioning Model 238 with code 2U8 (Alternative refrigerant) with code M256 (R6 spark-ignition engine M256) BF83.00-P-1001-01O
18.05.2022 Air conditioning/automatic air conditioning Model 238 with code M256 (R6 spark-ignition engine M256) except code 2U8 (Alternative refrigerant) BF83.00-P-1001-01O
G15379167Courtesy 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 
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 
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 R134a   AH83.30-P-0003-01KOA 
  Notes on handling refrigerant R1234yf   AH83.30-P-0003-02A 
  Draining     
1 Unscrew closure caps (1)    
2 Connect filler connections (2, 3) of air conditioning service unit to corresponding diagnostic sockets    
REFER TO SPECIAL TOOLS 000 588 04 82 00 Air conditioning service unit R134a   WS83.00-P-0031B
REFER TO SPECIAL TOOLS 000 588 10 82 00 R1234yf air conditioning service unit IMPORTANT When operating the air conditioning service unit, proceed in accordance with the operator's manual from the manufacturer. WS83.00-P-0034B
3 Extract refrigerant    
4 Note down quantity of extracted refrigerant as well as compressor oil    
5 Check desiccant cartridge for re-usability    
Notice  Protect air conditioning circuit and components from moisture when carrying out repair work if necessary

Replace drier cartridge.
AH83.30-P-0005-01KOA 
      AR83.30-P-6521LWO 
  Evacuate     
6 Clean refrigerant and evacuate refrigerant circuit    
7 Conduct vacuum test using air conditioning service unit    
  Filling     
8 Add new compressor oil to the refrigerant circuit according to the oil filling quantity noted during extraction    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.0)   BB00.40-P-0362-00A
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1) NOTES
Only use the approved compressor oil. If it is proven that a different compressor oil has been used, we will refuse to reimburse costs within the warranty and goodwill period. Daimler AG reserves the right to perform reexaminations.
NOTES
Correct oil filling quantity in refrigerant circuit. In the event of an incorrectly measured oil filling quantity, the refrigerant compressor may be damaged.
IMPORTANT Depending on the repair case, the oil filling quantity may need to be adjusted accordingly.
BB00.40-P-0362-01A
    FLUID SPECIFICATION Additional quantity of oil to be added when system suddenly looses fluid (e.g. line ruptured) *BF83.55-P-1002-02C 
    FLUID SPECIFICATION Additional oil filling quantity after replacement of condenser *BF83.55-P-1003-02C 
    FLUID SPECIFICATION Additional oil filling quantity after replacement of evaporator *BF83.55-P-1004-02C 
    FLUID SPECIFICATION Additional oil filling quantity after replacement of suction line *BF83.55-P-1005-02C 
    FLUID SPECIFICATION Additional oil filling quantity after replacement of pressure line *BF83.55-P-1006-02C 
    FLUID SPECIFICATION Additional oil filling quantity after replacement of refrigerant compressor *BF83.55-P-1007-02C 
    FLUID SPECIFICATION Additional oil filling quantity with detectable leakage *BF83.55-P-1008-02C 
    FLUID SPECIFICATION Additional oil filling quantity after replacement of desiccant cartridge *BF83.55-P-1009-02C 
9 Fill air conditioning system FLUID SPECIFICATION Air conditioning/automatic air conditioning *BF83.00-P-1001-01O 
INSPECT Check     
10 Conduct pressure test using air conditioning service unit In the event of a pressure drop during the pressure test

check air conditioning system for leakage.
AR83.30-P-1761LWO 
11 Detach filler connections (2, 3)    
12 Screw on closure caps (1)    
AIR CONDITIONING/AUTOMATIC AIR CONDITIONING

Number Designation Model 238 with code 2U8 (Alternative refrigerant) with code M256 (Inline 6-cylinder spark-ignition engine, M256) Model 238 with code 2U8 (Alternative refrigerant) except code M256 (Inline 6-cylinder spark-ignition engine, M256)
BF83.00-P-1001-01O Air conditioning/automatic air conditioning Filling capacity for refrigerant g 570 630
Specification R134a - -
Specification R1234yf BB00.40-P-0361-01A BB00.40-P-0361-01A
AIR CONDITIONING/AUTOMATIC AIR CONDITIONING

Number Designation Model 238 except code 2U8 (Alternative refrigerant) except code M256 (Inline 6-cylinder spark-ignition engine, M256) Model 238 with code M256 (Inline 6-cylinder spark-ignition engine, M256) except code 2U8 (Alternative refrigerant)
BF83.00-P-1001-01O Air conditioning/automatic air conditioning Filling capacity for refrigerant g 630 610
Specification R134a BB00.40-P-0361-00A BB00.40-P-0361-00A
Specification R1234yf - -
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1002-02C Additional quantity of oil to be added when system suddenly looses fluid (e.g. line ruptured) Compressor oil cm3 40
Specification BB00.40-P-0362-01A
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1003-02C Additional oil filling quantity after replacement of condenser Compressor oil cm3 20
Specification BB00.40-P-0362-01A
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1004-02C Additional oil filling quantity after replacement of evaporator Compressor oil cm3 40
Specification BB00.40-P-0362-01A
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1005-02C Additional oil filling quantity after replacement of suction line Compressor oil cm3 20
Specification BB00.40-P-0362-01A
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1006-02C Additional oil filling quantity after replacement of pressure line Compressor oil cm3 20
Specification BB00.40-P-0362-01A
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1007-02C Additional oil filling quantity after replacement of refrigerant compressor Compressor oil cm3 20
Specification BB00.40-P-0362-01A
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1008-02C Additional oil filling quantity with detectable leakage Compressor oil cm3 20
Specification BB00.40-P-0362-01A
REFRIGERANT COMPRESSOR

Number Designation Model 238
BF83.55-P-1009-02C Additional oil filling quantity after replacement of desiccant cartridge Compressor oil cm3 20
Specification BB00.40-P-0362-01A