Xoutpost.com - 3.0 X5 Performance concern

Xoutpost.com (https://xoutpost.com/forums.php)

- X5 (E53) Forum (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/)

- - 3.0 X5 Performance concern (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/68016-3-0-x5-performance-concern.html)

I had similar issue with my 2003 X5 3.0. Then the part below actually broke and caused a vacuum leak. The SM at the dealer said the part had been inoperative for a while and finally a piece broke off. I just had it replaced. It's called a DISA and it gives more grunt at low RPMs and more power at the top of the range. Since having it replaced I've noticed a big difference in acceleration from anywhere in the RPM range.

http://www.bimmermail.com/part.jpg

Quote:

Originally Posted by M_Six (Post 701048)

Thanks. i'll make sure this is checked also.

Agree with checking the adjustor but do the Exhaust camshaft sensor first since you have fault codes. I also had my adjuster unit replaced back back in 2005 with 121K miles on it. I do not recall any performance problem, but I distinctly remember I was getting a "high-pitched" sound at idle which turned out that I started to have a leak in the adjustor unit. It was the "high-pitched" squealing sound that made me replace it.

Here's my original post about it back in 6/2005!! ;)
http://www.xoutpost.com/bmw-sav-foru...what-part.html

Yes, I think that is the problem. If I remember correctly, mine only faulted about 50 times or so but once I replaced the sensor, performance has been consistent and no further fault code re: exhaust camshaft timing sensor.

Unfortunately, these sensors just goes bad. It's easy to replace. Glad that I could help. Good luck! :) Keep us updated on the outcome of your repairs.

I believe if you look at RealOEM link, it is one of the "pulse generator, camshaft" parts which is about $116 (US).

RealOEM.com BMW E53 X5 3.0i Sensors

http://www.realoem.com/bmw/diagrams/v/u/138.png

Quote:

Originally Posted by Tags (Post 701043)

well well well..........i just spoke to my mechanic who looked back at the diagnostic report from the major service that was done 4000kms ago. The exhaust camshaft timing sensor had logged a fault 225 times............he cleared it and was going to get to me to come back after a few days of driving but just forgot to tell me.

Hopefully your estimate on the cost to fix is close :)

I'm forever greatful that you posted, Kewl X5.........we're getting our new boat in a few weeks and i was worried that if it was in its lethargic mode it would really struggle with towing it

Is this worth fixing yourself or should i just get my mechanic to do it? He quoted me approx $370.

I am not sure how mechanically inclined you are, but if you have something like the Bentley X5 Service Manual, you can probably do it yourself. However, these days, I do not have the luxury of time on working on my own car like I used to...

Here is a DIY for the intake camshaft sensor...I believe the exhaust camshaft sensor is in the similar area...

http://www.xoutpost.com/articles/x5/...-x5-3-0-a.html

Mechanic just rang to tell me that they've replaced the exhaust camshaft position sensor and all is now good. I look forward to picking it up and having a "responsive" drive again. I'll let you know if it made the difference.

Cheers,

Quote:

Originally Posted by Tags (Post 685267)

Is there anyone with the petrol 3.0 experiencing the same thing?

My 2001 3.0i petrol with 93k miles is always peppy and never seems to change. I love it.

I would start with new spark plugs, a bottle or two of techron and maybe a seafoam treatment.

Quote:

Originally Posted by John Galt (Post 703040)

My 2001 3.0i petrol with 93k miles is always peppy and never seems to change. I love it.

I would start with new spark plugs, a bottle or two of techron and maybe a seafoam treatment.

Just had a major service 3-4 months ago and it came back with a clean bill of health. The only error code was the exhaust camshaft position sensor. I'm picking it up in a few hours so fingers crossed its all good.

Cheers,

Good deal!! Keep me updated and hopefully that should help. However, with 255 fault codes stored re: exhaust camshaft position sensor, I think you got your problem solved.

The way described your problem is exactly what happened to my X5 a little over a year ago.

Quote:

Originally Posted by Tags (Post 703021)