Glad you got it sorted!:thumbup:
So it was vacuum related ,so the "blind ideas some were throwing up here" were in fact proven to be true!
If you read my post #20 this is what it says:-
It just takes a small bad seal for you to loose boost pressure!If you rip all your hoses off,it will make even worst and you wont learn anything!

Best to check all individual vac tubes and hoses and the clips.
Or get someone with live data recording equipment to record the boost on test drive.

Good find by the mechanic Podge, I'm very pleased for you mate. Could have been costly the way it seemed to be going with talk of replacing injectors and the like! Particuarly the time taken to try and diagnose it thus far.

Powers1, as for your two attempts at discreditting my suggestion of podge seeing a diesel mechanic, you really need to get your facts right before you quote people.

At no point did I say the ideas were silly, nor did I say that people were throwing them out there blindly. You need to read my post again. Perhaps your English is not as good as it should be, or it may just be the fact you have a chip on your shoulder and are reading what you want to read? I don't know and quite frankly I don't care. Just get your facts right in future when quoting someone, thats all.

Also, you will note that the ACTUAL problem was found by the mechanic, and not by your ideas of check this hose and check that hose. So it being 'proven' isn't strictly true is it? It would need to have been the area you were suggesting to try. It wasn't, was it.

Oh, and you having to point out that you feel you solved it or played any part of the problem being resolved-like it was your idea all along that is was a hose because it was 'vacuum related'-hahahaaaaa:rofl::rofl::rofl: (on a turbo engine-geez, ya think?!!) is a sad testament to your small mind. Dear god! :rolleyes: As it happens the problem was a mile away from where you were saying to check. But there you go. You carry on in your own little world sunshine. :thumbup:

Podge, as I said, very pleased you got your motor 'back' mate. There's nothing worse than your car not doing what it should be doing. Although mine's not a diesel, thanks for sharing the find with us. :D

Not trying to discredit you!You do a pretty good job of that yourself.:nanana:
As well as this and because of your lack of technical knowledge,your only arguments are personal attacks,yet AGAIN!!:stickpoke
If you had any knowledge of turbo-diesel engines and their vaccum control systems,you wouldnt even have put in your last post and make a complete a** of yourself again.:rofl::rofl:

My facts are right!You did suggest to the OP to see a Diesel specialist and I did read your post correctly when you said people here were throwing ideas out and he is just trying them blindly,so you better read your post again so you remember what you wrote.:bustingup

Agree!The actual problem was found by the mechanic,and what did he find?He found a disconnected vaccum pipe on a solenoid!
Do you know what this means?It means that from as early as post #5,from X5 Sport,the "ideas the guys were throwing out" ,were right on the money,as the problem was in fact vacuum related.I advised the OP to check all the vac pipes....The whole vac system,not just the easily accessible.
The actual location of the problem was found by his mechanic,but what he found was exactly what the guys first suggested,as being vacuum related.

Now thats sorted ,explain this comment your made?Yes..vacuum on a turbo engine......:nanana:
"problem being resolved-like it was your idea all along that is was a hose because it was 'vacuum related'-hahahaaaaa:rofl::rofl::rofl: (on a turbo engine-geez, ya think?!!) is a sad testament to your small mind. Dear god! :rolleyes:"

Jeez has this thread turned nasty! There are a lot of vacuum systems on cars regardless of whether they are diesel or petrol. The suggestion was made early on about checking the vaccum side of he system, and sure enough that is where the issue turned out to be.

One thing all of us have found with BMW Dealers is that their workshop teams are no longer Mechanics in the old way, but are 'Technicians' who are over reliant on their computer fault diagnostic systems. Like all computer based systems they are only as good as their programmers made them and if the sensor circuitry shows no fault because a fault condition does not have a sensor in that place then no fault will be recorded. It took a dealer 6 attempts to find that my low battery issue was actually a faulty starter motor! No sensor, no error!

When my gearbox destroyed itself I got no warning lights, but the transmission reported clutches B & D as being broken. A warning would have been nice there too!

BMW do not even allowtheir 'Technicians' to carry out certain repairs, instead they insist upon the Owner stumping up for a complete and usually unnecessary replacement.

So next time you go to a Dealer expecting (quite rightly) them to know exactly what's wrong, don't be surprised when they don't because they work from the computer, not 1st principles.

When you come on to this Board asking for help, please remember that most of us are not mechanics or technicians. We learned our skills from other members. The advice to check the vacuum system was sound and as it turned out, correct.

Now everyone be nice and let's not vent frustrations on any one particular member or another. Some of the verbal attacks in this thread are over the top and unnecessary. All you will achieve is stopping anyone helping you when you hit trouble in the future.

Over and Out.

Looks Like problem Lies With

The

VACUUM TRANSDUCER

PART NUM ( PA 6.6 - GF35 )


cant find it online ,, getting price from autogarage 2m





** ripped friends V/T off and his x5 lost all power **
so must be problem :cool:

Podge, very interesting... What a load of crap.... I dont mean that you got your power back (wish I could get mine back) but the BS about the vacuum pipes being in the Auto Transmission.

The part that you are talking about is attached to the engine, right side near the rear when looking from the front. You dont need to drain oil from the gearbox (unless it is one of the electronic solenoids in there) and certainly you dont have to remove the sump.

Is this what the mechanic told you, so he could charge you the €120 euro to push the pipe back on? Or, are you being funny :dunno:

Anyway, doesnt matter, glad you have yours fixed. :thumbup:

And before anyone says anything about vacuum on Turbos, I have spent 5 months trying to trace a possible vacuum issue on mine, several people on this forum have tried to help, so i know every inch of pipe and vacuum solenoids on a 3.0d (wish it was a pipe loose).

I must say you asked a genuine question and to weed through the crap from people that all they want to do is abuse other people that responded is so tedious, no wonder people dont come back to these forums.

A few people in this Topic should learn about the car before attacking others replies.

Everyone gives ideas that can always help, even if it isnt pinpointed. I cant see one reply from those that actually gave advice being incorrect.

Just wish it helped me..

Ya I think mechanic was pullin the piss ha ha ... Problem sorted tho it WAS vacuum transducer .... Power back 100%

"behind the scenes"
 

...............and now that the "movie" has ended ,here is some "behind the scenes" takes:D

podge,i'm guessin u pist ur mechanic off so much callin 2him wit different idea's dat he made up dat spoof just 2keep u occupied on da forums:rofl:!!!i wudn't blame him.vacuum transducer/boost converter is most likely ur problem for sure;).disconnect vac pipe off either side of black vac cannister while engine is running and listen for vac release.if u hear it then rest assured ur vac pipes serving da turbo r 100%.next refit and remove da hose a few times and watch 2 c if wastegate operates a little.it shud.if it dont then u either have a faulty vac transducer or da short hose going 2 wastegate is cracked (presuming ur wastegate isn't seized as u said ealier it checked out ok).u will find these units on many different TDI engines.ford,seat,audi,volkswagon will all carry this unit wit identical part no. which will probly be cheaper dan MD..i know a rite good lad(chris k) down south who wud be worth a buzz if ur still in bother.just post me.:thumbup:

My mechanic only charged me a arm n leg .. But he is v good .. He's main BMW man his name is Chris kelliher .. He has fixed many x5s and is ideal fella to ask any questions about any car or truck trouble ... He's available on +353 087 2991938