S20.10-4510-07
Shown on engine 642.990
3 Bolts
4 Screw
5 Bolts
1 Coolant thermostat housing
2 Coolant pipe
S20.10-4516-04
Shown on engine 642.890
1 Coolant thermostat housing
5 Bolts
6 Coolant hose
R48/3 Thermostat heating element
Modification notes
13.1.10 | Methods and cross-reference altered | Operation step 3 | |
10.5.10 | Method supplemented and reference added | Steps 4.2, 5 |
| Remove/install | ||
Danger! | Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | |
Danger! | Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by 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. | |
| Notes on coolant | ||
1 | Remove engine trim panel | Only applies to front engine cover. | |
2 | Drain coolant | ||
3 | Remove fuel hose on coolant thermostat housing (1) | ||
4.1 | Remove coolant pipe (2) on coolant thermostat housing (1) | Engine 642.990 | |
For this purpose, remove bolts (3, 4). Do not remove hose from coolant pipe (2). | |||
Installation: Replace sealing ring. | |||
| |||
4.2 | Remove coolant pipe (6) on coolant thermostat housing (1) | Engine 642.890 | |
For this purpose detach coupling from coolant hose (2). | |||
Open and close coupling. | |||
5 | Disconnect electrical connector from thermostat heating element (R48/3) | Engine 642.890 only | |
6 | Remove coolant thermostat housing (1) | To do this, remove bolts (5). | |
Installation: Replace sealing ring. | |||
| |||
7 | Install in the reverse order |
Coolant pump, coolant thermostat
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