Fuel filter of a diesel engine with a working volume of 1.4 liters

1 - return fuel line
Blue or respectively with blue markings.

2 - fuel supply line
From the fuel tank. White or respectively with white marking.

3 - clamp

4 - control valve
Installation position: the arrow must point towards the fuel tank. When replacing the filter, remove the clamp and remove the control valve together with the attached hoses.
At temperatures below +15°C: the fuel flow through the filter is open.
At temperatures above +31°C: the fuel flow through the filter is closed.

5 — o-ring of circular cross-section
Always replace. One or two rings are installed depending on the engine.

6 - return fuel line
from the vacuum pump. Blue or respectively with blue markings.

7 - fuel line

8 - fuel temperature sensor

9 - check valve
Mounting position: The arrow must point towards the vacuum pump.

10 - fuel supply line
White or respectively with white marking. to the vacuum pump.

11 - fuel filter
Before installation, fill with fuel.

12 - seal

13 - plug for removing water