Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration

AP20.00-D-2010R

Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration

12.05.2020

Engine

646.7 in model 909

1

Cap



Check

 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.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

1

Unscrew cap (1)

2

Check coolant level

 Check coolant level and adjust to correct level only if coolant temperature is below 50 °C. The cooling system is correctly filled when the coolant level matches the "Max." mark on the expansion reservoir.

Check anticorrosion/antifreeze protection before adjusting coolant to correct level. To do so, drain coolant from radiator drain screw if required.



Drain/fill in coolant

AP20.00-D-2080-01R

3

Check corrosion protection/antifreeze protection

 Commercially available tools
Antifreeze tester.

In case of insufficient corrosion protection and/or antifreeze protection:



Correcting anticorrosion/antifreeze concentration

AP20.00-D-2010-01R

 Coolant

*BF20.00-N-1001-01A

4

Adjust coolant to correct level



Anticorrosion/antifreeze agents (Sheet 325.0)

BB00.40-P-0325-00A

 Ensure correct mixing ratio of the coolant.

5

Screw on cap (1)

 Engine cooling

Number

Designation

Engine 646.701 in model 909

BF20.00-N-1001-01A

Coolant

Total filling capacity

Liter

7,2

Corrosion/antifreeze down to -37 °C

Liter

3,6

Corrosion/antifreeze down to -45 °C

Liter

4

Sheet

BB00.40-P-0310-01A

Sheet

BB00.40-P-0325-00A

Sheet

BB00.40-P-0325-05A

Sheet

-