Remove/Install Fan Unit - AR20.40-P-5050MNG
Engine 177 in model 253
| 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 pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Risk of injury . Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| 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 | |
| Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | ||
| Notes on coolant | AH20.00-N-2080-01A | ||
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Remove/install | |||
| 1 | Switch off ignition and store transmitter key outside of transmission range (min. 2 m) | ||
| 2 | Remove upper engine cover | ||
| 3 | Remove retaining clips of air duct segment (79) on crossmember (70) | ||
| 4 | Remove screws of hood locks (72) | *BA62.30-P-1008-01H | |
| 5 | Remove screws (73, 74, 75, 76) | *BA62.30-P-1003-01H | |
| *BA62.30-P-1010-01H | |||
| 6 | Remove screw (78) | ||
| 7 | Remove brackets (71) | ||
| 8 | Pull hood locks (72) out of crossmember (70) and remove crossmember (70) upward | ||
| 9 | Drain off coolant in the low-temperature circuit | AR09.41-P-6834MNG | |
| 10 | Drain off coolant | AR20.00-P-1142MNG | |
| 11 | Release and disconnect electrical connector at fan unit (38) | ||
| 12 | Remove coolant line (36) from left charge air cooler | Fig 3 | |
| 13 | Remove coolant line (36) from fan unit (38) | *BA00.10-P-1002-04A | |
| 14 | Remove bleed line (39) at cooler (42) | AR20.20-P-7441-01RQ | |
| 15 | Release and disconnect electrical connection (2) | ||
| 16 | Press clamp (arrow) and remove low-temperature circuit circulation pump 3 (M43/8) | ||
| 17 | Unhook fan unit (38) from cooler (42) and remove upward | ||
| 18 | Mount protective plate on cooler (42) | ||
| WF58.50-P-0110-04A | |||
| 19 | 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 | |
| 20 | Perform an engine test run and check engine for proper operation and leaktightness | ||
| 21 | Install lower engine compartment paneling | AR61.20-P-1105LW | |
| 22 | 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 |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 253 | ||
|---|---|---|---|---|
| BA62.30-P-1003-01H | Bolt, strut to cross member | M8 | Nm | 20 |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 253 | |
|---|---|---|---|
| BA62.30-P-1008-01H | Bolt, lock striker to cross member/front-module carrier | Nm | 10 |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 253 | ||
|---|---|---|---|---|
| BA62.30-P-1010-01H | Bolt, front module carrier to cross member | M6 | Nm | 3 |