Fig. 471. The arrow shows the drain plug for removing condensate. The filter is secured with clamp A
Fig. 472. Connection points located on the top of the fuel filter: 1 - hose to the fuel tank; 2 - fuel line to the high-pressure fuel pump; 3 - return fuel line from the high-pressure fuel pump; 4 - return fuel line to the fuel tank (shown by arrow); 5 - locking clamp
The fuel filter should be changed every 30,000 km, and every 15,000 km or 12 months it should be emptied of accumulated condensate. The filter is located in the engine compartment (Fig. 471). Fig. 472 shows a top view of the filter, where you can see the connection points located on it. In order to access the drain plug, you need to lift the front of the car.
To drain the condensate, unscrew the threaded plug of the air bleed hole (shown by the arrow in Fig. 471), which is located at the bottom of the filter, and drain the fuel along with the water (approximately 100 cm) until only fuel, no water, starts to flow out. Then reinstall the plug.
Fig. 473. View of fuel filter elements (the arrow shows the direction of fuel flow, which must be observed when installing the fuel filter): 1 - return pipeline from the high-pressure fuel pump; 2 - fuel injection pump supply hose; 3 - sealing ring; 4 - control valve; 5 - locking clamp; 6 - return line to the fuel tank; 7 - supply hose from the fuel tank; 8 - fuel filter; 9 - gasket; 10 - condensate drain plug
The upper part of the filter contains the control valve, which is secured with a spring clamp 5 (Fig. 473). When replacing the filter, remove the spring clamp and pull out the control valve together with the pipes located on it in an upward direction. The filter is secured with clamp A (Fig. 471). If the connections on the control valve have been removed, they must be reinstalled in accordance with Fig. 472.
After you rev the engine a few times, fuel should flow through the clear fuel hose at idle speed without any visible air bubbles.
[View the original on this portal www.vwmanual.ru]
Visitor comments