300 tdi fuel leek help !

i opened the bonnet today as there was a smell of fuel (and mpg has been bad) ive had a few 'spots' under the car when i park for a while but always thought it was oil -ts actually been caused buy a small leek from somewere dripping down the oil filter, i now think this may have been fuel, the area in the middle of the photo seems covered in fuel, im going to gunk the whole engine and run it up to see if i can work out were its coming from but any advice ? there is not anything splashing around that i can see... were do i start?

The lift pump pipes look a bit suspect in that photo, injection pump pipework to the rear looks OK.

having just gone to have a look the top pipe of the lift pump looks ok but the bottom one is a bit manky.... is it worth replacing the lift pump and that pipe ? any ideas on the part numbers for the pipe that goes from here to the filter? i cant see to find one online for sale

check the leak off pipes (maybe called run off pipes?) Could have a split or tiny hole.

Mine did this last year. Was becoming difficult to start when it had sat for a good few hours. The Diesel slowly leaks out and allows air in causing bad starting and fuel leaking down the offside of the engine.

Good luck.

further reading:: http://www.landyzone.co.uk/lz/f8/300-tdi-disco-bad-starting-cold-134647.html

the leak off pipes were all the cause of my last leek... i think i will replace the lift pump and hope its just that !

hum no were seems to stock the fuel pipe down from the filter - anyone able to help? i think this may be the point were its leaking in to the lift pump - ive got no issues with driving so not to keen on changing the lift pump as i have no problems

Have you tried ti nip up the coupling? If that does not work you could try getting one from a breaker.

yup it seems quite tight - i thin kthe best bet is to remove it all and add new bits , perhaps a jubilee clip behind the nut to ensure its not leeking ?

try giving it a bit of a nip up anyways.

yup all nipped up - cleaned it with gunk then went for a drive , bottom half of the engine (and on to the top of the diff ) covered in fuel, looks like its from the underside of the lift pump area... the disco drives ok though so bit confused - can the lift pump leek but it drive ok?