Shown on engine 622.9 |
1 | Coolant pump |
2 | Belt pulley |
3 | Bolts |
4 | Bolts |
P20.10-2409-06
S20.10-4542-09
Shown on engine 622.9 |
5 | Strut | 8 | Bracket | 11 | Bolts | ||
6 | Electrical connector | 9 | Screw | 12 | Carrier plate | ||
7 | Screw | 10 | Electrical wiring harness | Y27/21 | Radiator bypass valve |
Shown on engine 622.8 |
1 | Coolant pump |
2 | Belt pulley |
12 | Carrier plate |
13 | Hose clamps |
14 | Coolant lines |
S20.10-A027-82
Warning | 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. | |
Warning | 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 pressure. Do not pour coolant into beverage containers. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Notes on avoiding damage through contamination and foreign objects | ||
Topical note | Notes on coolant | ||
| Remove/install | ||
1 | Drain off coolant. |
| |
Model 447 with engine 622.8 | |||
2 | Remove the engine mount with integrated engine carrier, front right. | ||
3 | Remove left engine mount. | ||
4 | Remove charge air hose downstream of charge air cooler. | Model 447 with engine 622.9 | |
5 | Remove strut (5). | ||
6 | Release and disconnect electrical connector (6). | Model 447 with engine 622.9 | |
7 | Remove cooler bypass valve(Y27/21). | Model 447 with engine 622.9 | |
Do not remove cooler bypass valve (Y27/21) completely. | |||
8 | Remove screws (7). | ||
9 | Remove screw (9) and remove holder (8). | Model 447 with engine 622.9 | |
10 | Remove electrical wiring harness (10) from the carrier plate (12). | ||
11 | Remove hose clamps (13) and coolant lines (14). | Model 447 with engine 622.8 | |
12 | Remove screws (11). | The number of screws (11) varies depending on the engine. | |
Model 447.### ## as of 022442 with engine 622 | |||
13 | Remove carrier plate (12). | ||
14 | Loosen screws (3) for belt pulley (2). | Bolt, belt pulley to coolant pump | |
15 | Remove poly-V-belt. | ||
16 | Unscrew screws (3) for belt pulley (2). | ||
17 | Remove belt pulley (2). | Push engine and transmission somewhat to the side. | |
18 | Remove screws (4). | Bolt, coolant pump to crankcase | |
19 | Remove coolant pump (1). | Installation: Replace sealing ring. | |
| Clean | ||
20 | Clean sealing surface on crankcase. | Loctite 7063 (400 ml) cleaning spray | |
21 | Clean coolant pump (1) sealing surface.. | If the coolant pump (1) is reused. | |
Loctite 7063 (400 ml) cleaning spray | |||
22 | Install in the reverse order. | ||
| Check | ||
23 | Check cooling circuit for leak tightness. | ||
Warning | Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning 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 hazard area. | |
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. | |
24 | Perform engine test run. While doing so, check engine for proper operation and leak tightness. |
Referenced documents
- ah0000p500001a Notes on avoiding damage through contamination and foreign objects
- ah2000n208001a Notes on coolant
- ah5400p000101a Information on preventing damage to electronic components due to electrostatic discharge
- ar0941s8625ef Remove/install charge air hose downstream of the charge air cooler
- ar1322s1202ef Remove/install poly-V belt
- ar2000s1010e Inspect cooling system for leaks
- ar2000s1140e Drain coolant, fill up and check cooling system for leaks
- ar2000s1142eh Drain/pour in coolant
- ar2210s1101ef Remove/install left engine mount
- ar2210s1265ef Remove/install right front engine mount with integrated engine support
- as0000z000201a Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.
- as0000z000501a 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.
- as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.
- as4900z000101a Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust.