2005 BMW X5 DIESEL - LOW ON POWER

[Isambard]

Podge, I've just skim-read this post and it seems to me that guy's are throwing ideas out there and you are trying those ideas blindly. No disrespect chaps, you're only trying to help of course.

I know petrol cars, I know little about diesels, so if I were in your shoes podge I would be taking my car to a diesel specialist. There must be a diesel man somewhere that you can at least talk to concerning your problem. Even if its just to get his opinion on your problem before you have to admit defeat and take it to him to have a look at.

I hate to say it but I bet he'd be able to solve your problem alot sooner than us petrolheads could!

Forget about it being a beemer, its a diesel truck/lorry/tractor-whatever, and thats all you need to know right now. Turbo, non-turbo, a diesel engine is a diesel engine.

Just my tuppence worth. Good luck

[powers1]

Originally Posted by Isambard

Podge, I've just skim-read this post and it seems to me that guy's are throwing ideas out there and you are trying those ideas blindly. No disrespect chaps, you're only trying to help of course.

I know petrol cars, I know little about diesels, so if I were in your shoes podge I would be taking my car to a diesel specialist. There must be a diesel man somewhere that you can at least talk to concerning your problem. Even if its just to get his opinion on your problem before you have to admit defeat and take it to him to have a look at.

I hate to say it but I bet he'd be able to solve your problem alot sooner than us petrolheads could!

Forget about it being a beemer, its a diesel truck/lorry/tractor-whatever, and thats all you need to know right now. Turbo, non-turbo, a diesel engine is a diesel engine.

Just my tuppence worth. Good luck

excellent advice.

[podge_healy]

Ya looks lik thats what I have to do after today .. Mechanic is fit to crack .gonna get a proper diagnostics done again and not from main dealer pricks. For anyone who has same problem I ruled out cat converter today as a problem and same for cleaning egr valve. And no leeks n pipes .. Anyone know the voltage going to injectors ??? 12v ???

[powers1]

Originally Posted by podge_healy

Ya looks lik thats what I have to do after today .. Mechanic is fit to crack .gonna get a proper diagnostics done again and not from main dealer pricks. For anyone who has same problem I ruled out cat converter today as a problem and same for cleaning egr valve. And no leeks n pipes .. Anyone know the voltage going to injectors ??? 12v ???

Ask your mechanic or the diesel specialist!They should know the injector voltage!
Here,we are just "throwing up silly blind ideas for you to follow " and the main dealers are "pr*cks,according to you ,cant even do a proper Diag,so good luck with your mechanic!Hope you get it sorted and if you do get it sorted ,please let us know what it "really" was.

[podge_healy]

:po pcorn::thu mbup:

[powers1]

Originally Posted by podge_healy

PROBLEM SORTED !!!! Finally back to normal great power ... Drove mechanic into back of seat €120 euro to fix .. Apparently a solenoid in the A/T box was leaking vacuum... Gearbox oil must be drained and sump must come down .. Small bit of ripping must be sober then and YOU will SEE the solenoid with 3 PIPES onto it of which ONE came loose .......... Just to let anyone know for who ever gets problem ... Syntoms wer. ...... V low power constantly - no warning lights .. No diagnostics report showed problem... BMW dealers. TOTAL RIP OFF. Stay away from them

Glad you got it sorted!
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.

[rb0135]

Originally Posted by podge_healy

€120 euro to fix .. Apparently a solenoid in the A/T box was leaking vacuum... Gearbox oil must be drained and sump must come down .. Small bit of ripping must be sober then and YOU will SEE the solenoid with 3 PIPES onto it of which ONE came loose

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

Anyway, doesnt matter, glad you have yours fixed.

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..

[sasquatch]

Again, I would check compression first. Diesels run much higher compression ratios and any drop in that compression will be very noticeable in terms of power delivery. Could be something as simple as a stuck valve or leaky injector.

[podge_healy]

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

[powers1]

Dump valve makes more of a "woosh" sound....!Have the mechanic check all you vac pipes that go to solenoids,etc.Also get him to check all the pipes from turbo to intercooler to inlet manifold,for leaks.I also noticed you have a few holes in you bumper grill!I hope something hasnt hit your intercooler and holed it?Check it too.