Remove/Install Radiator - AR20.20-P-3865MNM
Engine 177 in model 217, 222
Shown on model 217.4
| 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 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 | |
| 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 | Drain off coolant in the low-temperature circuit | AR09.41-P-6834MNM | |
| 2 | Drain air conditioning system | AR83.30-P-1760LF | |
| 3 | Remove fan unit | AR20.40-P-5050MNM | |
| 4 | Remove additional radiator | AR20.20-P-3867MNM | |
| 5 | Remove refrigerant lines from condenser and seal openings with suitable stop plugs and protective covers | *BA83.30-P-1008-01P | |
| Fig 2 | |||
| Fig 3 | |||
| 6 | Release and disconnect electrical connector of refrigerant pressure sensor | Engine 177 in model 217, 222 except code 1U6 (R744 refrigerant) |
AR83.30-P-5430LF |
| 7 | Remove coolant line (10) and coolant hose (12) from low-temperature cooler and seal openings with suitable protective covers | AR20.20-P-7441-01RQ | |
| Fig 1 | |||
| 8 | Unclip bottom coolant line (10) from cooler (11) | ||
| 9 | Remove coolant hose (8) from cooler (11) and seal openings with suitable protective covers | AR20.20-P-7441-01RQ | |
| Fig 1 | |||
| 10 | Remove screws (80) and remove cross strut (79) | Engine 177 in model 217.4 |
*BA00.10-P-1002-04A |
| 11 | Remove radiator package in upward direction | ||
| 12 | Remove air duct segment (3) from radiator package | ||
| 13 | Unscrew screw/bolts (9) | ||
| 14 | Remove cooler (11) from radiator package | ||
| 15 | Install in the reverse order | ||
| 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 | |
| 16 | Perform an engine test run; check engine for functionality and leaktightness | ||
| 17 | Install lower engine compartment paneling | AR61.20-P-1105LF | |
| 18 | Install upper engine cover |
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143
| Number | Designation | 8.8 | 10.9 | |
|---|---|---|---|---|
| BA00.10-P-1002-04A | M6 x 1 | Nm | 9 | 13 |
AIR CONDITIONING
| Number | Designation | Model 217 except code 1U6 (R744 refrigerant) | Model 217 with code 1U6 (R744 refrigerant) | ||
|---|---|---|---|---|---|
| BA83.30-P-1008-01P | Bolt/nut, refrigerant line to condenser/gas cooler | M6 | Nm | 12 | 12 |
AIR CONDITIONING
| Number | Designation | Model 222 except code 1U6 (R744 refrigerant) | Model 222 with code 1U6 (R744 refrigerant) | ||
|---|---|---|---|---|---|
| BA83.30-P-1008-01P | Bolt/nut, refrigerant line to condenser/gas cooler | M6 | Nm | 12 | 12 |