AP20.00-A-2010A | Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration | 18.7.06 |
ENGINE 457.939 /945 /946 /949 in MODEL NAB372.124
ENGINE 457.939 /945 in MODEL NAB372.317
A20.30-0002-01
Shown on model 372.124 with engine 457.949
| Checking | ||
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. | |
1 | Remove cover | ||
2 | Check anticorrosion/antifreeze protection | Check anticorrosion/antifreeze protection and adjust to correct level only if coolant temperature is below 50 °C. If necessary correct the anti-corrosion agent and anti-freeze subject to separate repair order: | |
Correct the anti-corrosion agent and anti-freeze protection. | |||
| |||
3 | Check coolant level | Only inspect coolant level and adjust to correct level if coolant temperature is below 50 °C. The cooling system is correctly filled when the coolant level is between the min. and max. mark (arrows). | |
In the event of fluid loss which is not caused by consumption, check the cooling system for leaks subject to separate repair order: | |||
Carry out status test of radiator, lines and hoses of the cooling and heating system. | |||
4 | Correct coolant level if necessary. | To do this, fill up with coolant to the max. mark (arrow). Use only coolant of the specified composition. | |
| Notes on coolant | All engines | |
| Anticorrosion/antifreeze agents | Passenger vehicles and cross-country vehicles, passenger vehicle engines in commercial vehicles: Commercial vehicle and industrial engines: | |
5 | Attach cover |
Commercially available tools
Referenced documents
- ah2000n208001a Notes on coolant
- ap2000a201001a Correcting anticorrosion/antifreeze concentration
- ap2000a2050a Cooling and heating system - check condition of radiator, lines and hoses
- as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.
- bb0040p032500a Anticorrosion/antifreeze agents (Sheet 325.0)