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Home >> Mercedes Benz >> 2021 >> GLC300 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 253 Chassis 2 Of 3 >> Testing & Repair >> Remove/Install Condenser >> Remove/Install Condenser - AR83.30-P-6540MRI

Remove/Install Condenser - AR83.30-P-6540MRI

Model 205, 253 with engine 264 

Shown on model 205.4 

G14471605Courtesy of MERCEDES-BENZ USA
Fig 1: Condenser Components Location - Model 253 With Engine 264 (Shown On Model 205)
G14471606Courtesy of MERCEDES-BENZ USA

Shown on model 205 

G14471607Courtesy of MERCEDES-BENZ USA

Shown on model 205 

DANGER Risk of explosion  caused by welding or soldering work on closed air conditioning system. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury  to skin and eyes caused by contact with liquid refrigerant. 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 areas. Carry out repair work on the air conditioning system circuit only after the system has been drained. AS83.00-Z-0001-01A
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 repair work on the air conditioning system circuit only after the system has been evacuated. AS83.00-Z-0007-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
Notice  Protect air conditioning circuit and components from moisture when carrying out repair work   AH83.30-P-0005-01KOA
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Procedure for a damaged or leaky air conditioning system   AH83.30-P-0004-01KOA
Notice  Notes on installation position of condenser   AH83.30-P-0002-01LW
  Notes on handling refrigerant R1234yf   AH83.30-P-0003-02A
REMOVINGINSTALLING Remove/install     
1 Discharge air conditioning system.   AR83.30-P-1760LW 
    INSTALLATION IMPORTANT Evacuate air conditioning system, refill and check for leak tightness.  
2 Remove front bumper.   AR88.20-P-2000LW
3 Remove additional radiator for low-temperature circuit. Model 205, 253 with engine 264 with code B01 (48V technology) AR09.41-P-3001MRI
4 Remove cold air intake (13).    
5 Remove insert fasteners (14).    
6 Remove bolts (16, 17) and remove diagonal strut (15). TORQUE SPECIFICATION Bolt, strut to soundproofing *BA62.30-P-1004-01H 
    TORQUE SPECIFICATION Bolt, strut to cross member *BA62.30-P-1003-01H 
7 Unscrew screws (19, 20) and remove diagonal struts (18). Model 205 with engine 264  
    TORQUE SPECIFICATION Bolt, strut to soundproofing *BA62.30-P-1004-01H 
    TORQUE SPECIFICATION Bolt, strut to cross member *BA62.30-P-1003-01H 
8 Release and disconnect electrical connection (3).    
9 Remove lower air duct segment (2).    
10 Release and disconnect electrical connector (6).    
11 Remove nut (4), remove refrigerant line (5) and seal openings using suitable stop plugs.    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    INSTALLATION IMPORTANT Replace seal. Moisten sealing ring with compressor oil.  
    TORQUE SPECIFICATION Nut, line to condenser *BA83.30-P-1002-01Q 
    SPECIAL TOOL Record plug Fig 2
12 Remove nut (7), remove refrigerant line (8) and seal openings using suitable stop plugs.    
REFER TO CAPACITIES & SPECIFICATIONS Compressor oils (specification 362.1)   BB00.40-P-0362-01A
    INSTALLATION IMPORTANT Replace seal. Moisten sealing ring with compressor oil.  
    TORQUE SPECIFICATION Nut, line to condenser *BA83.30-P-1002-01Q 
    SPECIAL TOOL Record plug Fig 2
13 Release locks (10, 11) in direction of arrow and route condenser (1) downwards. NOTES
Carefully guide out condenser (1). Otherwise condenser (1) or adjacent components may be damaged.
IMPORTANT Swivel condenser (1) downwards slightly to extend it on the left-hand side.
 
INSPECT Check     
14 Check condenser (1) for damage. If damage is present,

replace condenser (1).
 
15 Check receiver drier for re-usability. If one of the following conditions is fulfilled: Vehicle is more than 5 years old, refrigerant is contaminated (color ranges from dark gray to black), refrigerant compressor is jammed or refrigerant circuit has been damaged (e.g. after an accident),

Replace drier cartridge.
 
      AR83.30-P-6521LW 
16 Modify refrigerant pressure sensor (B12). If condenser (1) is to be replaced.  
      AR83.30-P-5430LW 
    TORQUE SPECIFICATION Refrigerant pressure sensor to condenser *BA83.30-P-1006-01Q 
17 Install in the reverse order    
  Concluding tasks     
WARNING Risk of burn injuries  , suffocation and poisoning when working on the exhaust system and the components connected to it. caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust. Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone. AS49.00-Z-0001-01A
WARNING Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
18 Perform engine test run, check air conditioning system for proper operation while doing so.    
CROSS MEMBER AND FRONT REINFORCEMENT

Number Designation Model 205 Model 253
BA62.30-P-1003-01H Bolt, strut to cross member M8 Nm 20 20
CROSS MEMBER AND FRONT REINFORCEMENT

Number Designation Model 205 Model 253
BA62.30-P-1004-01H Bolt, strut to soundproofing M8 Nm 20 20
AIR CONDITIONING

Number Designation Model 205 Model 253
BA83.30-P-1002-01Q Nut, line to condenser Nm 12 12
AIR CONDITIONING

Number Designation Model 205 Model 253
BA83.30-P-1006-01Q Refrigerant pressure sensor to condenser Nm 10 10
Fig 2: Identifying Record Plug (129 589 00 91 00)
G11972128Courtesy of MERCEDES-BENZ USA