Engine cooling system capacity |
Number | Designation | Engine 475.9 for trucks | Engine 476.978/988/991 for buses | |||
BF20.00-B-1001-01B | Cooling system - Approximate level | Do not mix products between classes | Litros | 30 | 54 | |
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 | 54 | ||
Pressure in the system | bar | 0,35...0,50 | 0,60...0,80 | |||
Vacuum in the system | bar | 0,10 | 0,10 |
Engine 457.931, 475.9, 476.9 |
2 | Cooling system draining plug in the engine block |
3 | Cooling system draining plug in the radiator |
B20.00-0055-01
B20.00-0011-01
457.922/928 Engine |
5 | Clamp |
6 | Radiator hose |
B20.00-0066-01
Drain the engine cooling system
Risk of burning
Do drain the cooling system, the cooling temperature must be below 50 °C.
Engine 457.931, 475.9, 476.9
1
Remove the filling nozzle lid, in the compensation reservoir.
2
Release the draining plug (2) in the engine block and collect the fluid in a proper container.
3
Remove the draining plug (3) in the radiator and collect the fluid in a proper container.
457.922/928 Engine
1.1
Release the clamp (5) and remove the hose (6) from the radiator lower part
4
When draining the cooling, proceed with it ecologically.
Refuel the engine cooling system
Engine 457.931, 475.9, 476.9
5
Install the plug (2) in the engine block ad the plug (3) in the radiator.
457.922/928 Engine
5.1
Install the radiator hose (6).
6
Prepare the cooling in a separate container, bu shaking it to perfectly homogenize the mixture.
7
Control the mixture concentration with the o densitometer.
8
If necessary, make the corrections, by adding water or additive until you obtain the prescribed concentration.
9
Refuel the cooling system up to the maximum reference level of the compensation reservoir: .
10
Install the filling nozzle lid, in the compensation reservoir.