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  #11  
Old 04-12-2023, 12:47 PM
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Thanks SirHiss.

Is it fairly easy to do then? Could I perform this without jacking the car up as the car is on a drive on a hill, therefore difficult to jack and move altogether now.
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  #12  
Old 04-12-2023, 06:20 PM
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Quote:
Originally Posted by baker330 View Post
Thanks SirHiss.

Is it fairly easy to do then? Could I perform this without jacking the car up as the car is on a drive on a hill, therefore difficult to jack and move altogether now.
I doubt you can do this without jacking the car, unless you can park over a curb or something to give yourself more head-room.

I also drop the drive-shaft center support bearing, as doing so make lowering the cover a bit easier. Watch the pre-load when re-attaching this bearing if you do this.
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  #13  
Old 04-12-2023, 10:57 PM
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Fairly easy job. I did not remove the drive shaft mount but the metal part of the cover did take some persuading to get past it!



You will need to raise the car somehow. Do you have any ramps in lieu of jacking it up?
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  #14  
Old 04-13-2023, 04:10 AM
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Thanks guys.

Not sure if my old ramps will hold the X5 it's so heavy!

It's facing downhill (on drive way) so perhaps I can roll it onto up these ramps.
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  #15  
Old 04-24-2023, 11:10 AM
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Hi all,

Quick update here then, the fuel filter is on order and whilst looking underneath to change, I attempted to then start the car, on the second attempt she started!

Which begs the question, what is wrong with it? Why should it suddenly fire?

I'm now concerned once I've changed the filter, it might not be the filter at all and I'll be out somewhere and won't be able to restart.

Any thoughts? The car has sat for a week or so, then started on second attempt and starts everytime so far.
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  #16  
Old 05-08-2023, 04:14 PM
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Hi all, fuel filter changed but as I said in the previous post the car started before the fuel filter was changed.

How about this the car failed to start today, any thoughts on where to look next?
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  #17  
Old 05-08-2023, 04:27 PM
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Also just to confirm for anyone else with this issue and troubleshooting, as previous posters said, there is no rivets underneath, the tray is a pain to take out, many many screws and you'll need to jack the front of the car up, best with drive on ramps.

To summarise, changed fuel filter hasn't fixed the issue - the car starts and runs then didn't start today after the car was parked with the front of the car facing down hill.

Not sure what to look at next, I removed the fuel line whilst ignition on and fuel does trickle out.

It's obviously still a fueling problem, maybe the pump under the car or the high pressure fuel pump but most people suggest the HPFP on these is quite reliable. However this car does have 170,000 miiles.
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Old 05-08-2023, 08:51 PM
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Seems like the inline fuel pump has not yet been totally eliminated as a cause. Although they are not a common failure point, they have been known to fail intermittently and cause this very problem.
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  #19  
Old 05-09-2023, 06:07 AM
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Cheers Wpoll.

I did lots of reading on this topic last night and although it is a fueling problem, this appears to happen if the car is warm/hot, cold start never an issue. Similar posts assume the camshaft sensor to be at fault, I'll look into this next and report back.
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  #20  
Old 06-19-2023, 03:37 AM
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Originally Posted by baker330 View Post
Cheers Wpoll.

I did lots of reading on this topic last night and although it is a fueling problem, this appears to happen if the car is warm/hot, cold start never an issue. Similar posts assume the camshaft sensor to be at fault, I'll look into this next and report back.

This is interesting, I had a similar problem, but mine reduced the car into a complete running mess. I swear if it was a SI engine, I would have been looking for a cylinder failure on the spark.
After an eternity of testing everything, the last resort was the fuel filter, before the HP pump. It ran like new again, well at least for half a dozen months until the exact same symptoms presented once more.



I know that we get the shittiest diesel in the world here in the underverse and they even propose that there is such a thing as premium diesel and regular diesel. This was factually debunked and the only real benefit found was it foamed less at filling.


Anyhow, back to what causes these FUBAR readings and behavior. I also had the scanner reading of all glow plugs / injectors are faulty These were over six years old as were most of the faults listed, so much for workshop services. It was reset and I started searching for replacements. Here is where I got lucky...My uncle who used to run the RAA (road side assist) in the south east of our state, now has been the Euro Car specialist of the South East for over ten years. No, I didn't get out to see him much for my own health reasons.
He checked my car 11/2006 E53 X5 and found that all these were operating fine. In fact, after all the issues I had fixed, he was not surprised at all to hear that when I put the oil flush through the engine and drove 14 km, it was starting to improve. Whilst he does not advocate the removal of the EGR valve, he does say it should be regularly checked and cleaned if it is still fitted to the vehicle. Here removal can cost you a huge fine, if caught.
Due to this clogging and EGR failure, I have had my car shut down completely as I stop at a set of lights, have idle hunting so severe while in gear that the car will stall and in neutral see 200-300 variation on the tacho. The more clogged it gets the more it takes to start when hot and yet when cold or sitting idle for a day or two, it starts at first crank and idles so smooth you don't even notice it is a diesel.


These are my own personal adventures with this mystery of the cranking and then what I call the diesel misfire. I have only experienced what you have once, and it was filter related...all that came out was what looked like fine metal rust particles. Well we know that is not the tank, don't we


Right now, I keep blowing turbo hoses off and without that working, that 3.0ltr motor is useless moving that lump of metal.
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