Replace coolant · ap2000b2080b · Mercedes-Benz WIS

AP20.00-B-2080B

Replace coolant

12.03.2020

Engine	457.911
	with code MS5 (BlueTec 5)
Engine	457.920/922/923/924/928/931, 475.9, 476.9

B20.00-0054-01

B20.00-0055-01

B20.00-0011-01

Engines 457.923/924/931, 475.9, 476.9

1	Cooling system compensation reservoir cover

2	Drain plug

3	Drain plug

Engines 457.911/920/922/928

1	Cooling system compensation reservoir cover
5	Clamp
6	Cooler hose

B20.00-0068-01

B20.00-0066-01

 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
	Check
1	Check leak-tightness and state of the cooling system and heating	.	AP20.00-B-2050D
	Remove
 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
2	Remove coolant system reservoir end cover (1)	Vehicles equipped with heating:
		
		Actuate the control to open position.
3	Drain the coolant	 Engines 457.911/920/922/928 Release the clamp (5) and remove the hose (6) from the cooler lower part.
		 Engines 457.923/924/931, 475.9, 476.9 Through the drain plug (2) located on the radiator bottom box and of the plug (3) located on the oil radiator head.
		 Drain completely the coolant and corrosion residues.
		If the cooling system has strong incrustations or excess grease:
		
		Submit it to a degreasing/descaling process.
		.	AR20.00-B-1030C
4	Refuel the system with coolant	.	AP20.00-B-2080-01D
	Notes on coolant	.	AH20.00-B-2080-01A
		 Engines 457.923/924/931, 475.9, 476.9 Installation: Install the plug (2, 3).
		 Engine 457.911/920/922/928 Installation: Install the hose (6).
		 Refuel through expansion reservoir fitting.
		 Use a densimeter to check the coolant concentration.
		 Engines 475.9, 476.9Cooling system - Approximate level	*BF20.00-B-1001-01B
		 Engine 457.923Cooling system - Approximate level	*BF20.00-B-1001-01M
		 Engines 457.920/922/928/924/931Cooling system - Approximate level	*BF20.00-B-1001-01D
 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
5	Without installing the cap (1) , run the engine during 1 to 2 minutes at varying revs
6	Stop the engine	.	AP20.00-B-2010C
		 If necessary, fill up the coolant level.
7	Put the cooling system's reservoir cap (1)	 Fit the cap (1) completely.
		 Record the coolant change in the Maintenance Manual.

 Engine cooling system capacity

Number	Designation				Engine 475.9 for trucks	Engine 476.950/971/979/980/982/983 for trucks
BF20.00-B-1001-01B	Cooling system - Approximate level	Do not mix products between classes		Litros	30	40
			Anti-corrosive/anti-freeze CLASSES MB 325.0, MB 325.3, MB 352.5	%	50	50
		Product already diluted	Anti-corrosive/anti-freeze MB CLASSES 326.0, MB 326.3	Litros	30	40
			Pressure in the system	bar	0,35...0,50	0,35...0,50
			Vacuum in the system	bar	0,10	0,10

 Engine cooling system capacity

Number	Designation				Engine 457.922/928 for trucks	Engine 457.924/931 for trucks
BF20.00-B-1001-01D	Cooling system - Approximate level	Vehicles without retarder		litros	28,5	34
		Do not mix products between classes
			Anti-corrosive/anti-freeze CLASSES MB 325.0, MB 325.3, MB 352.5	%	50	50
		Product already diluted	Anti-corrosive/anti-freeze MB CLASSES 326.0, MB 326.3	litros	28,5	34

 Engine cooling system capacity

Number	Designation				Engine 457.920 for trucks
BF20.00-B-1001-01D	Cooling system - Approximate level	Vehicles without retarder		litros	28
		Do not mix products between classes
			Anti-corrosive/anti-freeze CLASSES MB 325.0, MB 325.3, MB 352.5	%	50
		Product already diluted	Anti-corrosive/anti-freeze MB CLASSES 326.0, MB 326.3	litros	28

 Engine cooling system capacity

Number	Designation				Engine 457.923 ## from 898600
BF20.00-B-1001-01M	Cooling system - Approximate level	Vehicles without retarder		litros	34
		Do not mix products between classes
			Anti-corrosive/anti-freeze CLASSES MB 325.0, MB 325.3, MB 325.5	%	50

Referenced documents

ah2000b208001a Notes on coolant
ap2000b2010c Engine cooling system - check fluid level, adjust to correct level. Inspect anticorrosion/antifreeze protection, adjust to correct concentration
ap2000b2050d Cooling and heating system - Check condition of radiator, lines and hoses
ap2000b208001d Drain/fill in coolant
ar2000b1030c Remove grease and scale in the cooling system
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.