Remove/Install Radiator - AR20.20-P-3865MNI
Engine 177 in model 290
MODIFICATION NOTES
| 09.05.2023 | Document revised |
Shown on model 290.689
Shown on model 290.679
Shown on model 290.679
| 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 injury to skin and eyes suffering scalding from contact with hot coolant spray. 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. | AS00.00-Z-0017-01A | |
| Deburr repair panels. | |||
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Protect air conditioning circuit and components from moisture when carrying out repair work | AH83.30-P-0005-01KOA | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| 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 | ||
| Remove/install | |||
| 1 | Discharge air conditioning system. | AR83.30-P-1760FR | |
| 2 | Drain off coolant of the engine cooling system. | AR20.00-P-1142FR | |
| 3 | Drain coolant of low-temperature circuit. | AR09.41-P-6834MNI | |
| 4 | Remove fan unit. | AR20.40-P-5050MNI | |
| 5 | Remove radiator shutters (8). | AR20.20-P-3884OIB | |
| 6 | Remove screws (9) and remove struts (10). | *BA62.30-P-1003-01H | |
| 7 | Remove the cable tie (11) from the right underfloor paneling bracket (12) and remove underfloor paneling brackets (12) in downward direction. | ||
| 8 | Remove air duct segments (13). | ||
| 9 | Remove additional cooler. | AR20.20-P-3866MNI | |
| 10 | Remove screws (15) and detach lower coolant lines from cooling module (2). | Engine 177 in model 290.679 Engine 177 in model 290.689 |
|
| 11 | Remove refrigerant lines (14) from condenser. | ||
| Compressor oils (specification 362.1) | BB00.40-P-0362-01A | ||
| *BA83.30-P-1005-01S | |||
| Fig 4 | |||
| Fig 1 | |||
| Fig 5 | |||
| 12 | Release and disconnect electrical connector of refrigerant pressure sensor (B12). | ||
| 13 | Remove brackets (5) of additional cooler. | ||
| 14 | Unclip front air duct segment (4) from cooling module (2). | ||
| 15 | Remove struts (18). | *BA62.30-P-1003-01H | |
| 16 | Remove bolt (19). | ||
| 17 | Remove coolant hoses (16). | Engine 177 in model 290.679 |
Fig 2 |
| Fig 3 | |||
| 18 | Remove coolant hoses (3). | AR20.20-P-7441-01RQ | |
| Fig 2 | |||
| 19 | Unclip upper low temperature radiator from cooling module (2), lift and remove from the lower mount. | ||
| 20 | Remove cooling module (2) upward. | ||
| 21 | Unclip cooler (1) from cooling module (2) (arrows) and remove cooler (1). | ||
| 22 | Check radiator (1) for damage | If damage is present: ↓ Replace the radiator (1). |
|
| 23 | Install in the reverse order. |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 290 | ||
|---|---|---|---|---|
| BA62.30-P-1003-01H | Bolt, strut to cross member | M8 | Nm | 20 |
AIR CONDITIONING
| Number | Designation | Model 290 | |
|---|---|---|---|
| BA83.30-P-1005-01S | Nut/bolt, refrigerant line to condenser | Nm | 12 |