Technical Fuel leak in Multijet filter housing

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Technical Fuel leak in Multijet filter housing

Dermot

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Nov 22, 2009
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KIlkenny, Ireland
Hi all,
I have a 2006 Multipla multijet diesel (120hp) with 82,000mls. Last week I noticed a slight smell of diesel followed by the tell tale signs of a couple of oily patches apperainf on the tarmac. The fuel leak appeared to be coming from the filter area. It is one of the newer plastic type canisters with snap on pipe fittings and a replaceable filter element rather than screw on metal filter. At first I thought the leak was from one of the pipe fittings but removal of the whole unit failed to show anything obvious. On refitting, I discovered it only leaks when the engine is running (i.e. positive pressure in unit). While its next to impossible to see the leak in situ, it seems to be coming from the bottom of the casing where the water sensor unit is clipped in.

Has anyone seen this problem? Is it possible to reseal the water sensor unit or will I have to replace the whole filter housing which is probably expensive??
 
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