AP20.00-T-2080-01C | Drain coolant, refill | ||
Danger! | 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 bottles. Wear protective gloves, protective clothing and eye protection. |
T83.70-0007-11
Drain coolant
Observe the legal provisions and local wastewater regulations when disposing of coolants.
1 Separate the electrical plug connection (arrow) of the coolant circulation pump (10).
Coolant circulation pumps will be damaged if operated without coolant.
Engine cooling system
Number | Designation | Engines 402.970, 441.980, 446.938, 457.944 | ||
BF20.00-N-1001-01D | Coolant capacity | without VOITH retarder | Liter | 75...100 |
with VOITH retarder | Liter | 95...120 | ||
Specifications for Service Products | Sheet | |||
Sheet | ||||
T20.20-0033-06
2 Open shutoff valve of heating feed (1).
3 Open heating return flow shutoff valve (2).
T20.20-0034-01
4 Unscrew drain plug (20) at radiator and drain coolant.
5 Unscrew drain plug (15) of coolant connection at Voith retarder and drain coolant.
T20.20-0035-01
T20.20-0036-01
6 Unscrew drain plug (25) and also flame system temperature sensor (30) at engine and drain coolant.
A drain plug is fitted in place of the temperature sensor on models without flame starting system.
T15.45-0005-01
Pouring in coolant
7 Clear drain openings which are blocked by deposits.
8 Screw in all the drain plugs.
Inspect seals of the drain plugs, replace if necessary.
9 Prepare coolant of the specified composition and pour in.
10 Fit together electrical plug connection of the coolant circulation pump.
11 Set temperature for front heater and floor heater to maximum heating mode.
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