XSeries-forum

waw, pls do let me know. actually unlike normal i also have been trying to fill up on half tanks when this happened (normally i let it run to the bottom and do a full tank)

maybe if you go in the petrol station first spend the £110 on food & groceries they will come out & fill the car up for you like the good old days ! & only put a fiver in

The same thing has just happened to me,its no joke has just taken me 15mins to put £10 of diesel in and we all know how little that is.Has anyone else found the fault.

[quote=""weeden""]The same thing has just happened to me,its no joke has just taken me 15mins to put £10 of diesel in and we all know how little that is.Has anyone else found the fault.[/quote]

Wecome aboard, nice to have company

Were you filling up on a half-full or near empty tank?

Near empty.It was acting like it was full to the neck because it was bubbling up the neck and running out.

[quote=""weeden""]Near empty.It was acting like it was full to the neck because it was bubbling up the neck and running out.[/quote]

That's bad. I was hopin to check what gareth82 said, ie if it works when near empty on mine, so that's no good, no point waiting for my 3/4 of diesel to run out.

What u see is exactly the same as my symptom. My great suspision is the pipe that allows air to escape as u fill up. That might be blocked, making air rise up through the filler neck, pushing some diesel also up the neck with it, as u pump diesel in.

Unfortunately its sunday, next weekend ill try checkin that out.

Got my own workshop so i will get it stripped out tomorrow,just had a look at the linkfor tech data so i will post my findings,Its mega annoying it was perfect when i last filled it up last week.And there is no other running probs.Ian

[quote=""weeden""]Got my own workshop so i will get it stripped out tomorrow,just had a look at the linkfor tech data so i will post my findings,Its mega annoying it was perfect when i last filled it up last week.And there is no other running probs.Ian[/quote]

mega annoying all right, not to mention all the other cars behind u wonderin what the hell is goin on - fuelin up an x5 for about half hr!!

how did it go mate? pls post pictures if you can (although i know - taking photos is not the first thing in the mind when deep down trying to figure out how to diagnose).

cos i'll be following you as soon as i get time.

Hi . Removed the o/s rear wheel then the under arch trim to expose the expansion breather tank ? Unbolted it to find a valve mounted on the top that was not passing either way .There is 3 breather pipes going into the tank that i removed so i could check to see if there was any pressure build up,i just sucked them by mouth to find no vaccum(all good)I tried filling up from a can with the breathers all disconnected and there was no problem.So the expantion tank valve is the problem. I didnt price another one ,just drilled a hole next to the valve to allow every thing to breath, Jobs a good one Can even fill it up without standing for ages. Cheers Ian

Sorry PS the valve is part of the tank so its not replaceable.Cheers again Ian

[quote=""weeden""]Hi . Removed the o/s rear wheel then the under arch trim to expose the expansion breather tank ? Unbolted it to find a valve mounted on the top that was not passing either way .There is 3 breather pipes going into the tank that i removed so i could check to see if there was any pressure build up,i just sucked them by mouth to find no vaccum(all good)I tried filling up from a can with the breathers all disconnected and there was no problem.So the expantion tank valve is the problem. I didnt price another one ,just drilled a hole next to the valve to allow every thing to breath, Jobs a good one Can even fill it up without standing for ages. Cheers Ian[/quote]

cheers mate, good job and makes me feel confident i'd also get there this will immensely help me with the job, hopefully this weekend.

i'm sure i'd have a better feel once i access this myself. i suppose any info beforehand will help.

From the below image can you tell me which one had the problem and where you drilled the hole?



the image is from http://tis.spaghetticoder.org/s/view.pl?1/05/56/47

The pipes you are looking at are the three breathers that i was talking about the faulty valve is on top of the tank .you will see it after you remove the two 6mm bolts (10mm )spanner size,in figure r16 o234 number 1 looks like it but my car did not have a pipe on it .I drilled the hole (8mm) next to the white one way valve.

Bit brave drilling holes in a petrol tank lol

Sorry ,its not a petrol tank its a breather tank on a Diesel.No No dont drill holes in petrol tank every one knows the price o that stuff.LoL

[quote=""weeden""]Sorry ,its not a petrol tank its a breather tank on a Diesel.No No dont drill holes in petrol tank every one knows the price o that stuff.LoL[/quote]

if ur car goes belly up you'll lose all your diesel with that hole LOL