Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration · ap2000w2010k · Mercedes-Benz WIS

AP20.00-W-2010K

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

2.12.15

Engine

934.9, 936.9 in model 967

1	Cap
2	Expansion reservoir

W20.00-1087-11

 Danger !	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
 Danger !	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
	Notes on coolant		AH20.00-N-2080-01A
	Check
1	Open maintenance flap
2	Unscrew cap (1) on expansion reservoir (2)
3	Check coolant level	 Check and correct the coolant level only when the coolant temperature is below 50 °C. The cooling system is correctly filled when the coolant is at the "MAX" marking (arrow). Check the corrosion and antifreeze protection before correcting the coolant level.
4	Check anti-corrosion/antifreeze protection	 To do so, drain off the coolant at the coolant drain plug on the radiator if necessary. Commercially available tools Antifreeze tester
		 Drain screw to engine radiator	*BA20.20-N-1001-02B
		With insufficient corrosion and antifreeze protection:
		
		Correct corrosion and antifreeze protection - subject to separate repair order.
		Correcting anticorrosion/antifreeze concentration	AP20.00-W-2010-01H
5	Correct coolant level	 To do so, add coolant up to "MAX" mark (arrow). Use only coolant of the specified composition.
		 Coolant	*BF20.00-N-1001-01Q
6	Screw cap (1) onto expansion reservoir (2)
7	Close maintenance flap

 Engine radiator, coolant hoses, lines

Number	Designation		Engine 934.9	Engine 936.9
BA20.20-N-1001-02B	Drain screw to engine radiator	Nm	5	5

 Engine cooling

Number	Designation			Engine 934.9	Engine 936.9
BF20.00-N-1001-01Q	Coolant	Total filling capacity	Liter	25,5	29
		Anticorrosion/antifreeze agent down to -37 °C	Liter	12,7	14,5
		Anticorrosion/antifreeze agent down to -45°C	Liter	14,3	16,3
		Sheet		BB00.40-P-0310-01A	BB00.40-P-0310-01A
		Sheet		BB00.40-P-0325-05A	BB00.40-P-0325-05A

Referenced documents

ah2000n208001a Notes on coolant
ap2000w201001h Correcting anticorrosion/antifreeze concentration
as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.
as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.