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Home >> Mercedes Benz >> 2017 >> GLS550 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 166 Chassis 2 Of 3 >> Testing & Repair >> Check Evaporator For Leaks - AR83.30-P-5550Q

Check Evaporator For Leaks - AR83.30-P-5550Q

Model 164, 166, 197, 199, 204, 207, 209, 211, 212, 216, 218, 219, 221, 230, 240, 245 (except 245.286), 251, 292 

Model 169 (except 169.090), 171 with code 580 (Air-conditioning system) 

Model 169 (except 169.090), 171 with code 581 (Automatic Air conditioning) 

Shown on Model 203 

G14238201Courtesy of MERCEDES-BENZ USA
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 rep Air work on the Air conditioning system circuit only after the system has been evacuated. Model 164, 197, 199, 204, 207, 209, 211, 212, 216, 218, 219, 221, 230, 240, 245 (except 245.286), 251 Model 166, 292 except code 2U8 (Alternative refrigerant) Model 169 (except 169.090), 171 with code 580 (Air-conditioning system)
Model 169 (except 169.090), 171 with code 581 (Automatic Air conditioning)
AS83.00-Z-0006-01A 
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 rep Air work on the Air conditioning system circuit only after the system has been evacuated. Model 166, 292 with code 2U8 (Alternative refrigerant) AS83.00-Z-0007-01A 
Protect Air conditioning circuit and components from moisture when carrying out rep Air 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 Model 166, 292 with code 2U8 (Alternative refrigerant) AH83.30-P-0003-02A
  Notes on handling refrigerant R134a Model 164, 197, 199, 204, 207, 209, 211, 212, 216, 218, 219, 221, 230, 240, 245 (except 245.286), 251 Model 166, 292 except code 2U8 (Alternative refrigerant) Model 169 (except 169.090), 171 with code 580 (Air-conditioning system)
Model 169 (except 169.090), 171 with code 581 (Automatic Air conditioning)
AH83.30-N-0003-01A
REMOVING Remove     
1 Remove expansion valve Model 171.4 with code 580 (Air-conditioning system)
Model 171.4 with code 581 (Automatic Air conditioning)
AR83.30-P-5520V
    Model 204, 207, 212, 218 AR83.30-P-5520CW
    Model 164 with code 580 (Air-conditioning system) Model 164 with code 581 (Automatic Air conditioning)
Model 164 with code 582 (Air conditioning, rear)
AR83.30-P-5520GZ
    Model 166, 292 AR83.30-P-5520GQ 
    Model 169.0 (except 169.090), 169.3, 245.2 (except 245.286) with code 580 (Air-conditioning system) Model 169.0 (except 169.090), 169.3, 245.2 (except 245.286)
with code 581 (Automatic Air conditioning)
AR83.30-P-5520AK
    Model 197 AR83.30-P-5520RQ
    Model 199 AR83.30-P-5520SLR
    Model 209 with code 580 (Air-conditioning system)
Model 209 with code 581 (Automatic Air conditioning)
AR83.30-P-5520Q
    Model 211.0/2/6 AR83.30-P-5520T
    Model 219.3 AR83.30-P-5520TX
    Model 216.3, 221.0/1 AR83.30-P-5520SX
    Model 230.4 AR83.30-P-5520R
    Model 240 Front Air conditioning AR83.30-P-5520H
    Model 240Rear-end Air conditioning AR83.30-P-5520HA
    Model 251 with code 580 (Air-conditioning system)
Model 251 with code 581 (Automatic Air conditioning)
AR83.30-P-5520RT
INSPECT Check     
2.1 Install adapter (1) with adapter hose in place of expansion valve with new sealing rings (2, 6) Model 164, 166, 197, 199, 204, 207, 209, 211 212, 216, 218, 219, 221, 230, 251, 292 Model 171 with code 580 (Air-conditioning system) Model 171 with code 581 (Automatic Air conditioning)
Model 240 Front Air conditioning
 
    TORQUE SPECIFICATION Model 216 Model 221 Bolt, expansion valve to retaining plate *BA83.30-P-1003-01K 
    TORQUE SPECIFICATION Model 219 Screw/bolt, expansion valve to retaining plate *BA83.30-P-1005-01H 
    TORQUE SPECIFICATION Model 164.1/8, 166, 251, 292Bolt, expansion valve to retaining plate *BA83.30-P-1006-01J 
    TORQUE SPECIFICATION Model 171 (except 171.473) with code 580 (Air-conditioning system) Model 171 (except 171.473) with code 581 (Automatic Air conditioning) Model 171.473 with code 580 (Air-conditioning system) Model 171.473 with code 581 (Automatic Air conditioning)
Model 209Bolt, expansion valve
*BA83.30-P-1002-01D 
    TORQUE SPECIFICATION Model 197Nut on expansion valve *BA83.30-P-1009-01M 
    TORQUE SPECIFICATION Model 199, 204, 207, 211, 212, 218, 230
Model 240 Front Air conditioning Screw/bolt on expansion valve
*BA83.30-P-1002-01A 
    SPECIAL TOOL Adapter Fig 1
    SPECIAL TOOL Adapter hose Fig 2
2.2 Install adapter (1) in place of expansion valve with new sealing rings (2, 6) Model 169 (except 169.090) with code 580 (Air-conditioning system) Model 169 (except 169.090) with code 581 (Automatic Air conditioning)
Model 240 Rear-end Air conditioning Model 245.2 (except 245.286)
 
    TORQUE SPECIFICATION Model 169 (except 169.090) with code 580 (Air-conditioning system) Model 169 (except 169.090) with code 581 (Automatic Air conditioning)
Model 245 (except 245.286)Bolt, expansion valve
*BA83.30-P-1001-01G 
    TORQUE SPECIFICATION Model 240 Rear-end Air conditioning Screw/bolt on expansion valve *BA83.30-P-1002-01A 
    SPECIAL TOOL Test adapter Fig 3
3 Connect leak tester to adapter (1)    
REFER TO SPECIAL TOOLS 000 588 19 21 00 Leak tester   WS83.00-P-0035B
4 Fill evaporator with forming gas and check for leaks IMPORTANT The system pressure must be maintained for at least 4 h.
IMPORTANT The leak tester operator's manual must be observed.
IMPORTANT Temperature changes during the pressure test can cause pressure surges, e. g. due to weather changes, transition from day to night, cooling down of engine compartment.
Consistent ambient conditions must be strictly ensured.
 
    Pressure drop in refrigerant circuit filled with test gas If a problem arises

Replace evaporator
*BE83.30-P-1001-04A 
    Model 166, 292 AR83.30-P-5540GQ 
    Model 169.0 (except 169.090), 169.3, 245.2 (except 245.286) with code 580 (Air-conditioning system) Model 169.0 (except 169.090), 169.3, 245.2 (except 245.286)
with code 581 (Automatic Air conditioning)
AR83.30-P-5540AK
    Model 164 with code 580 (Air-conditioning system) Model 164 with code 581 (Automatic Air conditioning)
Model 164 with code 582 (Air conditioning, rear)
AR83.30-P-5540GZ
    Model 171.4 with code 580 (Air-conditioning system) Model 171.4
with code 581 (Automatic Air conditioning)
AR83.30-P-5540V
    Model 197 AR83.30-P-5540RQ
    Model 204, 207, 212, 218 AR83.30-P-5540CW
    Model 209 with code 580 (Air-conditioning system)
Model 209 with code 581 (Automatic Air conditioning)
AR83.30-P-5540P
    Model 211.0/2/6 AR83.30-P-5540T
    Model 219.3 AR83.30-P-5540TX
    Model 216.3, 221.0/1 AR83.30-P-5540SX
    Model 230.4 AR83.30-P-5540R
    Model 251 with code 580 (Air-conditioning system)
Model 251 with code 581 (Automatic Air conditioning)
AR83.30-P-5540RT
5 Disconnect leak tester from adapter (1)    
REFER TO SPECIAL TOOLS 000 588 19 21 00 Leak tester   WS83.00-P-0035B
6.1 Remove adapter (1) and adapter hose Model 164, 166, 197, 199, 204, 207, 209, 211, 212, 216, 218, 219, 221, 230, 251, 292 Model 171 with code 580 (Air-conditioning system) Model 171 with code 581 (Automatic Air conditioning)
Model 240 Front Air conditioning
 
    SPECIAL TOOL Adapter hose Fig 2
    SPECIAL TOOL Adapter Fig 1
6.2 Remove adapter (1) Model 169 (except 169.090) with code 580 (Air-conditioning system) Model 169 (except 169.090) with code 581 (Automatic Air conditioning) Model 240
Rear-end Air conditioning Model 245.2 (except 245.286)
 
    SPECIAL TOOL Test adapter Fig 3
INSTALLING Install     
7 Install expansion valve with new sealing rings (2, 6) Model 164 with code 580 (Air-conditioning system) Model 164 with code 581 (Automatic Air conditioning)
Model 164 with code 582 (Air conditioning, rear)
AR83.30-P-5520GZ
    Model 166, 292 AR83.30-P-5520GQ 
    Model 169.0 (except 169.090), 169.3, 245.2 (except 245.286) with code 580 (Air-conditioning system) Model 169.0 (except 169.090), 169.3, 245.2 (except 245.286)
with code 581 (Automatic Air conditioning)
AR83.30-P-5520AK
    Model 171.4 with code 580 (Air-conditioning system)
Model 171.4 with code 581 (Automatic Air conditioning)
AR83.30-P-5520V
    Model 197 AR83.30-P-5520RQ
    Model 199 AR83.30-P-5520SLR
    Model 204, 207, 212, 218 AR83.30-P-5520CW
    Model 209 with code 580 (Air-conditioning system)
Model 209 with code 581 (Automatic Air conditioning)
AR83.30-P-5520Q
    Model 211.0/2/6 AR83.30-P-5520T
    Model 219.3 AR83.30-P-5520TX
    Model 216.3, 221.0/1 AR83.30-P-5520SX
    Model 230.4 AR83.30-P-5520R
    Model 240 Front Air conditioning AR83.30-P-5520H
    Model 240Rear-end Air conditioning AR83.30-P-5520HA
    Model 251 with code 580 (Air-conditioning system)
Model 251 with code 581 (Automatic Air conditioning)
AR83.30-P-5520RT
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    IMPORTANT New sealing rings must be coated with compressor oil.  
AIR CONDITIONING

Number Designation Model 118, 164, 166, 167, 169, 171, 177, 190, 197, 199, 204, 205, 206, 207, 209, 211, 212, 216, 218, 219, 221, 230, 238, 240, 243, 245, 247, 251, 253, 257, 290, 292, 293 Model 213, 217, 222 except code 1U6 (R744 refrigerant)
BE83.30-P-1001-04A Pressure drop in refrigerant circuit filled with test gas Test pressure bar 15
Test period h 4
Permissible fluctuation of ambient temperature °C ±2
Pressure drop bar 0
AIR CONDITIONING

Number Designation Model 169 (except 169.090), 245 (except 245.286)
BA83.30-P-1001-01G Bolt, expansion valve Nm 8
AIR CONDITIONING

Number Designation Model 199 Model 204
BA83.30-P-1002-01A Screw/bolt on expansion valve Nm 8 5, 5
AIR CONDITIONING

Number Designation Model 207 Model 211
BA83.30-P-1002-01A Screw/bolt on expansion valve Nm 5, 5 8
AIR CONDITIONING

Number Designation Model 212 Model 218
BA83.30-P-1002-01A Screw/bolt on expansion valve Nm 5, 5 5, 5
AIR CONDITIONING

Number Designation Model 230 Model 240
BA83.30-P-1002-01A Screw/bolt on expansion valve Nm 8 8
AIR CONDITIONING

Number Designation Model 171 (except 171.473) Model 171.473
BA83.30-P-1002-01D Bolt, expansion valve Nm 4 4
AIR CONDITIONING

Number Designation Model 203, 209
BA83.30-P-1002-01D Bolt, expansion valve Nm 10
AIR CONDITIONING

Number Designation Model 221 Model 216
BA83.30-P-1003-01K Bolt, expansion valve to retaining plate Nm 5 5
AIR CONDITIONING

Number Designation Model 219
BA83.30-P-1005-01H Screw/bolt, expansion valve to retaining plate Nm 5
AIR CONDITIONING

Number Designation Model 164.1 Model 164.8
BA83.30-P-1006-01J Bolt, expansion valve to retaining plate Nm 5 5
AIR CONDITIONING

Number Designation Model 166 Model 251
BA83.30-P-1006-01J Bolt, expansion valve to retaining plate Nm 5 5
AIR CONDITIONING

Number Designation Model 292
BA83.30-P-1006-01J Bolt, expansion valve to retaining plate Nm 5
AIR CONDITIONING

Number Designation Model 197
BA83.30-P-1009-01M Nut on expansion valve Nm 8
Fig 1: Identifying Adapter (463 589 01 63 00)
G14238202Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Adapter Hose (140 589 51 63 01)
G14238203Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Test Adapter (140 589 51 63 00)
G14238204Courtesy of MERCEDES-BENZ USA