Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration · ap2000g2010h · Mercedes-Benz WIS

AP20.00-G-2010H

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

21.02.2018

Engine

470.9, 471.9, 473.9 in model 800.310/320

 Warning	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
 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
	Check
1	Unscrew cap of expansion reservoir
2	Check coolant level	 Check and correct the coolant level only when the coolant temperature is between 0 °C and 20 °C. The cooling system is correctly filled when the coolant is visible in the filler neck. Check the corrosion and antifreeze protection before correcting the coolant level.
3	Check anticorrosion/antifreeze protection	 To do so, drain coolant from radiator drain screw if required. Commercially available devices/tools Antifreeze tester.
		In case of insufficient anticorrosion and antifreeze protection
		
		Correct corrosion and antifreeze protection subject to separate repair order.
			AP20.00-G-2010-01H
		 For filling capacity, see information from body manufacturer.
		 Drain screw to engine radiator	*BA20.20-N-1001-02A
4	Correct coolant level; to do so, fill coolant up to "MAX" mark	 See information from body manufacturer.
5	Screw cap onto expansion reservoir

 Engine radiator, coolant hoses, lines

Number	Designation		Engine 470.9, 471.9	Engine 473.9
BA20.20-N-1001-02A	Drain screw to engine radiator	Nm	5	5

Referenced documents

ah2000n208001a Notes on coolant
ap2000g201001h 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.