Gas engine
Gasoline is highly flammable, so special precautions must be taken when working on any component of the fuel system. Do not smoke, and do not approach the work area with an open flame or an uncovered carrier. Do not carry out such work in garages equipped with natural gas heaters (such as water heaters, dryers, etc.). The work area must be well ventilated. If gasoline comes in contact with your skin, wash it off immediately with soap and water. Wear safety goggles and have a fire extinguisher handy when doing any work on the fuel system. If gasoline spills, wipe up the puddle immediately, but do not keep gasoline-soaked rags in places where they can ignite spontaneously.
1. If you smell gasoline while driving or after the car has stood in the sun, you should immediately check the condition of the entire fuel system.
2. Remove the fuel tank cap and check it for damage and corrosion. The sealing insert on the cover must be intact. Replace cap if damaged or corroded.
3. Inspect the intake and return lines of the fuel system for cracks. Check that the connections between the fuel system lines and the fuel injection system and between the fuel system lines and the integrated fuel filter are not loose.
On vehicles equipped with a fuel injection system, the pressure in the system must be relieved before servicing the fuel hoses.
4. Since some fuel system components - such as the fuel tank and some fuel system lines - are located at the bottom of the vehicle, they are easier to inspect when the vehicle is winched up. If this is not possible, jack up the vehicle and place it on jack stands.
5. With the vehicle raised, inspect the fuel tank and filler neck for holes, cracks, or other damage. Pay special attention to the condition of the connection between the filler neck and the tank. Sometimes fuel leaks occur due to loosening of the clamps securing the rubber neck or due to deterioration of the neck material. Inspect all brackets and straps for securing the fuel tank to make sure it is securely attached to the vehicle.
Never, under any circumstances, attempt to repair the fuel tank (excluding the replacement of its rubber components). The flame of a welding machine or any other open fire can easily lead to an explosion of gasoline vapors inside the tank.
6. Carefully inspect all fuel hoses and metal lines from the tank for loose connections, kinks, signs of wear on hose materials, or other damage. Repair or replace damaged sections as necessary.
Diesel engine
Operation in winter conditions
7. No additives are added to diesel fuel. Kerosene may be added - refer to Specifications.
8. If the engine does not start due to thickening of the fuel, it is very difficult to start it. For start:
- a) Remove the fuel filter and heat in a water bath until the fuel is liquid, or replace it with a new one.
- b) Roll the car into a heated garage.
- c) Spray the fuel system with hot water.
- d) BOSCH supplies a diesel heater for additional installation. An electric heater is installed in an additional pipeline to the fuel filter.
Under no circumstances should the injection system or the fuel tank be heated up with a blowtorch or similar device due to the risk of explosion!
Sludge removal/fuel filter replacement
Water must be removed from the filter regularly or when a corresponding signal appears on the control panel. Water usually forms in the fuel tank as a result of condensation or enters with the fuel at a filling station.
To carry out the work you will need:
- Manual vacuum pump with a container for collecting fuel from the filter, for example, KLANN LI-75200.
- Fuel filter cartridge.
- Filter cover seal.
- Container for collecting water in the filter.
If escaping diesel fuel gets on rubber parts, the latter must be wiped immediately (coolant hoses). Otherwise, the fuel gradually leads to the failure of rubber parts.
Protect the environment, never throw away used oil or dispose of it with household waste.
Withdrawal
Do not smoke near the workplace, do not use open flames and incandescent or very hot objects. There is a risk of fire! Keep a fire extinguisher ready. Be sure to ensure that the workplace is adequately ventilated. Fuel vapors are poisonous.
1. Turn off the ignition.
2. Unscrew the cap on the fuel filter housing with a 27 mm socket.
3. Have a rag ready. Take out the old fuel cartridge, wipe the drained fuel.
Installation
1. Before installing a new cartridge, remove water from the fuel filter housing. This requires a conventional hand vacuum pump, eg KLANN LI-75200. Insert the suction tube into the filter housing.
2. Use a hand pump to pump fluid from the filter housing into a container.
3. Check for dirt in the filter housing. If necessary, wipe the case with a cloth.
4. Insert a new cartridge.
5. Screw a cover with a new sealing ring the moment of 25 Нм.
6. Turn on the ignition for one minute without starting the engine. The fuel priming pump will turn on, prime the fuel filter and purge air from the fuel system.
7. Visually check the tightness of the fuel system, in particular at the fuel filter connections.