Correcting anticorrosion/antifreeze concentration · ap2000d201001a · Mercedes-Benz WIS

AP20.00-D-2010-01A

Correcting anticorrosion/antifreeze concentration

Engine	104.900, 111.948/950/978/980, 601.942/970, 611.980 in model 638
Engine	111.979/984, 601.943, 602.980, 611.981/983/987, 612.981 in model 903, 904
Engine	111.979/984, 601.943, 602.980, 611.981/987 in model 901
Engine	111.979/984, 601.943, 602.980, 611.981/987, 612.981 in model 902
Engine	112.951/976, 272.978, 642.890/990, 646.980/981/982/983, 651.940 in model 639
	except code MA0 (E-CELL 60 kW)
Engine	272, 646.980 in model 636
Engine	602.984/985 in model 667, 668, 670
Engine	611.983 in model 690.6
Engine	612.981 in model 905
Engine	647.981 in model 903.61/66/67, 904.61/66
	with code ZU7 (National version for Canada)
Engine	647.981 in model 903.61/66/67, 904.61/66
	with code ZU8 (National version for USA)
Engine	647.981 in model 903.61/66/67, 904.61/66
	with code ZU9 (National version for Mexico)
Engine	900.9, 904.9 in model 668, 670

 Radiator, coolant hoses, coolant lines

Number	Designation		Engine 104.900	Engine 111.948/978
BA20.20-N-1001-01A	Coolant drain plug	Nm	3	3

 Radiator, coolant hoses, coolant lines

Number	Designation		Engine 111.950/980	Engine 111.979/984
BA20.20-N-1001-01A	Coolant drain plug	Nm	3	3

 Radiator, coolant hoses, coolant lines

Number	Designation		Engine 112.951/976
BA20.20-N-1001-01A	Coolant drain plug	Nm	3

 Cooler, coolant hoses, coolant lines

Number	Designation		Engine 272 in model 636 Engine 272.978 in model 639	Engine 601.942/970
BA20.20-N-1001-01B	Drain screw at cooler (reference value)	Nm	3	3

 Cooler, coolant hoses, coolant lines

Number	Designation		Engine 601.943	Engine 602.980
BA20.20-N-1001-01B	Drain screw at cooler (reference value)	Nm	3	3

 Cooler, coolant hoses, coolant lines

Number	Designation		Engine 602.984/985	Engine 642.890/990 in model 639
BA20.20-N-1001-01B	Drain screw at cooler (reference value)	Nm	3	3

 Cooler, coolant hoses, coolant lines

Number	Designation		Engine 646.980 in model 636 Engine 646.980/981/982/983 in model 639	Engine 651 in model 636 Engine 651.940 in model 639
BA20.20-N-1001-01B	Drain screw at cooler (reference value)	Nm	3	3

 Radiator, coolant hoses

Number	Designation		ENGINE 904.9, 906.9	ENGINE 900.9
BA20.20-N-1001-01D	Coolant drain plug to radiator	Nm	4	4

 Radiator, radiator hoses, radiator lines

Number	Designation		Engine 611.980	Engine 611.981/ 983/987
BA20.20-N-1001-01G	Coolant drain plug to radiator (reference value)	Nm	3	3

 Radiator, radiator hoses, radiator lines

Number	Designation		Engine 612.981	Engine 647.981
BA20.20-N-1001-01G	Coolant drain plug to radiator (reference value)	Nm	3	3

 Mixture ratio for coolant

Number	Designation			Engine all (BUS, Heavy transporter, Light transporter, TRUCK, UNIMOG)
BF20.00-N-1001-04A	Mixture ratio for coolant	Antifreeze/water down to -37 °C	%	50/50
		Antifreeze/water down to -45 °C	%	55/45
		Sheet		BB00.40-P-0310-01A
		Sheet		BB00.40-P-0325-00A
		Sheet		BB00.40-P-0325-05A

Correcting anticorrosion/antifreeze concentration

Table for calculating top-up quantity of anticorrosion/antifreeze agent

A	Calculated anticorrosion/
	antifreeze agent concentration in % by vol.
B	Total coolant capacity in liters
C	Refill quantity of anticorrosion/
	antifreeze agent in liters

N20.00-0377-04

Example of calculation:
Measured antifreeze protection 20 °C = 32 percent by volume. Determined corrosion protection/antifreeze protection concentration in percent by volume (A),
Total coolant capacity in liters (B) = 8.5 l
Calculated refill quantity of anticorrosion/antifreeze agent in liters (C) = 2.25 l.

N20.00-2001-04

Comparison table (approx.) for antifreeze protection in °C and anticorrosion/antifreeze agent concentration in % by volume
°C	vol %	°C	vol %	°C	vol %
-10	20	-20	32	-30	42
-15	26	-25	37	-33	45
-18	30	-27	40	-37	50

1	Enter the calculated anticorrosion/antifreeze concentration in percentage by volume (A) in the calculation table.

2	Read total coolant capacity in liters (B) from basic data table and enter in calculation table.

3	Determine calculated refill quantity of anticorrosion/antifreeze agent in liters (C).

4	Drain coolant in the calculated refill quantity of anticorrosion/ antifreeze agent in liters (C) at the radiator drain plug.

5	Fill in the calculated refill quantity of anticorrosion and antifreeze agent in liters (C) into the cooling system.

6	Start engine and run for about 1 minute at varying speeds.