Diesel engine fuel filter (Renault Espace I)

The fuel filter must be changed every 30,000 km and, at least once a year, it must be emptied of accumulated condensate.

As experience accumulates, the time intervals may be reduced. The Bosch filter with an installed water drain is similar in design to an oil filter, i.e. a puller is used to remove the filter cover. At the factory, the filter screw thread is lubricated with a sealant, however, a gasket must be installed between the replaceable filter element and the filter cover. A filter is also used that has a built-in fuel pump and a device for heating diesel fuel.

To drain the condensate, remove the plug on the bottom of the replaceable filter element and the vent plug. Then drain about 100 cm³ of the fuel-water mixture. Then reinstall the plug and tighten the vent plug.

When installing a new Bosch filter, place the sealing washer over the screw thread and tighten the filter until the rubber seal is pressed in. From this position, turn the filter an additional quarter turn by hand (without tools).

If the fuel filter does not have a fuel pump built into it, use the starter to bleed the system. To do this, turn on the starter for about 10 seconds, then wait 5 seconds and turn it on again. Continue in the same sequence until the engine starts.

If the filter has a built-in fuel pump, open the high-pressure fuel line connection and pump it manually using the fuel pump handle until fuel without air bubbles comes out. Tighten the union nut again.

Original article is on the portal (renaultbook.ru)