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

AP20.00-P-2010A

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

12.11.2018

Engine

157.984 in model 463

1

Coolant expansion reservoir

2

Coolant expansion reservoir

3

Engine cover



Remove

 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

Remove engine cover(3)

2

Unscrew cap from coolant expansion reservoir (1, 2)

 Slowly open cap and allow overpressure to escape, then unscrew cap.



Check

3

Check coolant level in coolant expansion reservoir (1, 2), correct if necessary

Notes on coolant level

AH20.00-P-1142-01CW

In the event of fluid loss which is not due to normal consumption



Check engine cooling system for leak tightness



AR20.00-P-1010GW

4

Check coolant in coolant expansion reservoirs (1, 2) using antifreeze tester for sufficient levels of anticorrosion agent and antifreeze

If the mixing ratio is incorrect, correct the coolant composition:



Drain/fill in coolant



AR20.00-P-1142GW

 Use approved anti-corrosion and antifreeze agents only.



Install

5

Screw cap onto coolant expansion reservoirs (1, 2)

6

Install engine cover (3)