Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration · ap2000w2010h · Mercedes-Benz WIS

AP20.00-W-2010H

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

13.12.2018

Engine

470.9, 471.9, 473.9, 936.9 in model 963, 964

1	Cap
2	Expansion reservoir

N20.30-2123-04

 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 (1) on expansion reservoir (2)
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.
		 Engine 470.9, 471.9, 473.9Drain screw to engine radiator	*BA20.20-N-1001-02A
		 Engine 936.9Drain 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
4	Correct coolant level; to do so, fill coolant up to "MAX" mark	 Use only coolant of the specified composition.
		 Engine 470.9, 471.9Coolant	*BF20.00-N-1001-01M
		 ENGINE 473.9Coolant	*BF20.00-N-1001-01P
		 Engine 936.9Coolant	*BF20.00-N-1001-01N
5	Screw cap (1) onto expansion reservoir (2)

 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

 Engine radiator, coolant hoses, lines

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

 Engine cooling

Number	Designation			ENGINE 470.9 in MODEL 963, 964 except CODE B3H	ENGINE 470.9 in MODEL 963, 964 with CODE B3H
BF20.00-N-1001-01M	Coolant	Total filling capacity	Liter	50,0	70,0
		Anticorrosion/antifreeze agent down to –37°C	Liter	25,0	35,0
		Anticorrosion/antifreeze agent down to –45°C	Liter	28,5	39,5
		Specifications for Operating Fluids, Sheet		BB00.40-P-0310-01A	BB00.40-P-0310-01A
		Specifications for Operating Fluids, Sheet		BB00.40-P-0325-05A	BB00.40-P-0325-05A

 Engine cooling

Number	Designation			ENGINE 471.9 in MODEL 963, 964 except CODE B3H	Engine 471.9 in model 963, 964 with code B3H (Water-type secondary retarder)
BF20.00-N-1001-01M	Coolant	Total filling capacity	Liter	60,0	80,0
		Anticorrosion/antifreeze agent down to –37°C	Liter	30,0	40,0
		Anticorrosion/antifreeze agent down to –45°C	Liter	33,5	44,5
		Specifications for Operating Fluids, Sheet		BB00.40-P-0310-01A	BB00.40-P-0310-01A
		Specifications for Operating Fluids, Sheet		BB00.40-P-0325-05A	BB00.40-P-0325-05A

 Engine cooling

Number	Designation			Engine 936.9 in model 963, 964 except code B3H (Water-type secondary retarder)	Engine 936.9 in model 963, 964 with code B3H (Water-type secondary retarder)
BF20.00-N-1001-01N	Coolant	Total filling capacity	Liter	40,0	60,0
		Anticorrosion and antifreeze agent down to -37 °C	Liter	20,0	30,0
		Anticorrosion and antifreeze agent down to -45 °C	Liter	22,5	33,5
		Sheet		BB00.40-P-0310-01A	BB00.40-P-0310-01A
		Sheet		BB00.40-P-0325-05A	BB00.40-P-0325-05A

 Engine cooling

Number	Designation			ENGINE 473.9 in MODEL 963, 964 with CODE B3H	ENGINE 473.9 in MODEL 963, 964 except CODEB3H
BF20.00-N-1001-01P	Coolant	Total filling capacity	Liter	82	62
		Anticorrosion/antifreeze agent down to –37 °C	Liter	41	31
		Anticorrosion/antifreeze agent down to –45°C	Liter	46	34,5
		Specifications for Operating Fluids, Sheet		BB00.40-P-0310-01A	BB00.40-P-0310-01A
		Specifications for Operating Fluids, 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.