T20.10-0028-11
1 Hose clamp
2 Coolant hose
3 Bolt
4 Coolant thermostat housing
5 Coolant thermostat
6 Sealing ring
T20.10-0029-03
| Remove/install | ||
1 | Open engine compartment flap at rear | ||
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. | |
2 | Close shutoff valves for heating system and drain the coolant | Location of shutoff valves, refer to operator's manual. | |
| Drain/fill in coolant | ||
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| Notes on coolant | All engines | |
3 | Detach hose clamp (1) and remove coolant hose (2) | Installation: Check hose clamps (1) and coolant hose (2) for damage; replace if necessary. | |
4 | Remove coolant thermostat housing (4) | To do this, remove bolts (3). | |
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5 | Remove coolant thermostat (5) with sealing rings (6) | Installation: Replace sealing rings (6) and instal slightly greased. The arrows on the coolant thermostats (5) must point upwards. | |
6 | Test coolant thermostat | ||
7 | Install in the reverse order |
Coolant pump, coolant thermostat
Number | Designation | Engine 457.9 | |
BA20.10-N-1001-01K | Bolt, coolant outlet connection with coolant thermostat to coolant pump | Nm | 25 |
Engine cooling system
Number | Designation | Engine | ||
BF20.00-N-1001-01D | Filling capacity for coolant | without VOITH retarder | Liters | - |
with VOITH retarder | Liters | 90...105 | ||
Specifications for Operating Fluids | Sheet | |||
Sheet | ||||
Repair materials
Number | Designation | Order number |
BR00.45-Z-1014-06A | ATE grease | - |