Remove/Install Radiator Unit - AR20.20-P-3871MRK
Engine 264 In Model 167
| 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 | |
| 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 injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| 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 | Notes on self-locking nuts and bolts | AH00.00-P-0001-01KOA | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notes on handling refrigerant R1234yf | AH83.30-P-0003-02A | ||
| Notes on handling refrigerant R134a | AH83.30-P-0003-01KOA | ||
| Remove/install | |||
| 1 | Remove the engine compartment lining at the front and in the center. | AR61.20-P-1105ME | |
| 2 | Remove front bumper. | AR88.20-P-2000ME | |
| 3 | Release and disconnect the electrical connector (10) and remove the electrical line from the holder (11). | Engine 264 in model 167 with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS)) Engine 264 in model 167 with code 489 (AIRMATIC Dual Control/semi-active air suspension) |
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| 4 | Unscrew the screws for the holder (11) and remove the holder (11). | Engine 264 in model 167 with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS)) Engine 264 in model 167 with code 489 (AIRMATIC Dual Control/semi-active air suspension) |
*BA62.30-P-1009-02I |
| 5 | Remove the radiator shutters. | Engine 264 in model 167 with code 9U7 (Aerodynamic measure package control code) |
AR20.20-P-3882MRK |
| 6 | Remove screws (2). | ||
| 7 | Remove expansion rivets (7). | Fig 3 | |
| 8 | Remove the temperature sensor (4) from the air duct segment (3). | ||
| 9 | Remove air duct segment (3). | ||
| 10 | Discharge air conditioning system. | AR83.30-P-1760ME | |
| 11 | Remove fan unit. | AR20.40-P-5050MRK | |
| 12 | Remove the holders (5). | ||
| 13 | Drain off coolant. | AR20.00-P-1142MRK | |
| 14 | Remove the coolant hoses from the radiator unit (1). | AR20.20-P-7441-01RQ | |
| 15 | Remove the bleed line (6) from the radiator unit (1). | AR20.20-P-7441-01RQ | |
| 16 | Remove the refrigerant lines from the condenser and place to one side; seal the openings with suitable stop plugs. | ||
| Compressor oils (specification 362.1) | BB00.40-P-0362-01A | ||
| *BA83.30-P-1003-01U | |||
| Fig 2 | |||
| 17 | Release and disconnect the electrical connector of refrigerant pressure sensor (B12/2) and unclip the line from radiator unit (1). | AR83.30-P-5430OID | |
| 18 | Remove cross strut (8). | *BA62.30-P-1006-02I | |
| 19 | Secure radiator unit (1) against falling down. | ||
| 20 | Remove mounting supports (9). | *BA62.30-P-1007-02I | |
| 21 | Unclip side air duct segments from radiator unit (1). | ||
| 22 | Release the radiator unit (1) and remove downward. | ||
| Check | |||
| 23 | Check the radiator unit (1) for damage. | If damage is present ↓ Replace corresponding component. |
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| 24 | Check lower elastomer bearings of radiator unit (1) for wear and damage. | If damage is present ↓ Replace lower elastomer bearings |
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| 25 | Install in the reverse order |
FRONT END WITH REINFORCEMENT
| Number | Designation | Model 167 | ||
|---|---|---|---|---|
| BA62.30-P-1006-02I | Nut/screw, lower crossmember to radiator unit mounting support | M10 | Nm | 55 |
FRONT END WITH REINFORCEMENT
| Number | Designation | Model 167 | ||
|---|---|---|---|---|
| BA62.30-P-1007-02I | Screw, radiator unit mounting support to front crossmember | M6 | Nm | 10 |
FRONT END WITH REINFORCEMENT
| Number | Designation | Model 167 | ||
|---|---|---|---|---|
| BA62.30-P-1009-02I | Screw, bracket to mounting support of radiator unit at front bottom | M6 | Nm | 8 |
AIR CONDITIONING
| Number | Designation | Model 167 | ||
|---|---|---|---|---|
| BA83.30-P-1003-01U | Nut, refrigerant line to condenser | M6 | Nm | 12 |