The following replacement parts must be purchased:
- Petrol engines with fuel injection device: Gaskets for hollow bolts.
- Fuel filter for the corresponding engine. When purchasing, please provide the year of manufacture and model.
Removal water/replacing fuel filter
A vessel is required to collect the water sediment. Caution: Immediately wipe off any leaking diesel fuel on rubber parts (e.g. cooling system hoses), otherwise they will deteriorate over time.
Removal water
Water should be removed when the fuel filter indicator light on the instrument panel comes on.
- Place a suitable container under the drain plug.
- Loosen the drain plug (water level sensor) by 2-2½ turns.
- F Pump with a hand pump until clean diesel fuel comes out (6-7 times).
- F Tighten the water drain valve by hand.
- F Remove air from the fuel system.
Filter replacement
- Open the fuel tank cap briefly to relieve pressure in the tank.
- Drain all liquid from the fuel filter as described in the previous paragraph.
- If equipped, disconnect the water alarm connector.
- Loosen and remove the fuel filter cartridge from the filter housing using a fuel filter wrench.
- If present, unscrew the water alarm, check and insert into the new filter. Install the water level sensor in a vice and remove by turning the filter housing. Do not clamp it too tightly in the vice, so as not to damage the sensor.
- Check the water level sensor. To do this, connect an ohmmeter to the connector, hold the sensor as shown in the picture, and move it down. When the float is raised, the ohmmeter should show 0 Ohm, when lowered - ∞.
- Fill the fuel filter to the brim with diesel fuel and secure it, first moistening the gasket with diesel fuel.
- Remove air from the fuel system.
- After a test drive, check the fuel system for leaks.
Removal air from the fuel system
- Open the air release screw.
- Pump with a hand pump until no more air bubbles come out of the hole. Place a rag around the air release screw.
- Close the air release screw.
- Operate the hand pump until you feel noticeable resistance.
- It is normal to preheat the engine and then start it.
- If the engine does not start, repeat the air bleeding process.
- Inspect the fuel system for leaks, especially where the fuel filter is connected.
Carburetor engines
The fuel filter is located in the engine compartment on the fuel supply line. After disconnecting the inlet and outlet hoses, you will need 2 clamps to secure the hoses; clamps with screw clamps can be used.
Removal
Warning: Do not light open flames, fire hazard!
- Disconnect the battery ground cable. Caution: This will erase the data in the electronic memory, such as the engine fault memory or the radio code. Disconnect the battery only when the ignition is off, otherwise the fuel injection control unit may be damaged. Before disconnecting the battery, read the instructions in the section "Removing and installing the battery".
- Disconnect the tubes with clamps from the fuel pump hoses.
- Loosen the clamps and remove the hoses from the fuel pump.
Installation
- Connect the hoses to the new fuel filter and secure them with clamps. The upper hose connects the filter to the carburetor.
- Secure the connection points of the hoses and tubes with clamps.
- Connect the ground cable to the battery.
- If they are available, set the time on the clock and enter the security code into the radio.
- After running the engine, check the tightness of the fuel system connections.
Engines with fuel injection device
The fuel filter is located in the engine compartment. When removing the fuel filter, fuel may spill, so you need to put a container under it to collect it. Then you will need a suitable rubber plug to close the fuel line.
Removal
Warning: Do not make open fire, fire hazard!
- Disconnect the battery ground cable. Caution: This will erase the data in the electronic memory, such as the engine fault memory or the radio code. Disconnect the battery only when the ignition is switched off, otherwise the fuel injection unit control unit may be damaged. Before disconnecting the battery, read the instructions in the section "Removal and installation the battery".
- Place a container under the fuel filter.
- Remove the air filter, see p. 6.6.
- Relieve pressure in the fuel system, see p. 8.3.
- While holding the fuel filter mounting nut, unscrew the hollow bolt.
Caution: Place a cloth around the fuel filter to collect any spilled fuel.
Unscrew the lower fuel pipe from the filter and remove the fuel filter.
Installation
- Screw on the new fuel filter with new gaskets. Tighten the hollow bolt to 35 Nm.
- Using a jumper cable, apply battery voltage to the fuel pump terminal to activate it.
- After creating pressure in the fuel system, check the tightness of the connection points.
- Disconnect the auxiliary wire.
- Connect the ground cable to the battery.
- If they are available, set the time on the clock and enter the security code into the radio.