X5 diesel engine noise - With VID.

[bawareca]

"Plausibility" means that the readings of the sensor are out of the range that is stored in the DDE's maps. If someone can rust test schedules in ISTA that wive a tons of information about the problems and tips to help pinpoint the problem. I am quite sure it is not the sensor(s) itself.

[Dr. Anthony]

Originally Posted by bawareca

"Plausibility" means that the readings of the sensor are out of the range that is stored in the DDE's maps. If someone can rust test schedules in ISTA that wive a tons of information about the problems and tips to help pinpoint the problem. I am quite sure it is not the sensor(s) itself.

wow, good to know. I believe the sensors were already replaced a couple of years ago too. I can't get inpa/ista working properly on my laptop. I'll see if I can get a friend to check that out for me. I appreciate your help.

[bawareca]

Sure, keep us posted.
I have new versions ISTA/D standalone for WIN7,8 and I can install remotely. The ICOMs are down to under $200 now so a pretty decent system can be had for almost nothing.

[Dr. Anthony]

Originally Posted by bawareca

Sure, keep us posted.
I have new versions ISTA/D standalone for WIN7,8 and I can install remotely. The ICOMs are down to under $200 now so a pretty decent system can be had for almost nothing.

The laptop I use for that is an old windows laptop that I have the bavtech installed on. If you have links to something, I'd definitely consider buying a new setup if I knew i could get it working

The only thing I use the inpa cables for now (I have 2) is to register batteries, and clear codes using bmwlogger on my mac.

Either way, I'll definitely update the thread as I get more info and hopefully resolve it.

[ZetaTre]

Originally Posted by bawareca

Sure, keep us posted.
I have new versions ISTA/D standalone for WIN7,8 and I can install remotely. The ICOMs are down to under $200 now so a pretty decent system can be had for almost nothing.

I sent you a PM. I have Rheingold (and DIS) both working with a 20 bucks connector from Amazon -> Amazon.com: KCRIUS(TM) K+D CAN USB Interface OBD2 Cable Diagnostic Scanner for BMW only: Automotive

All running on a WindowsXP Centrino Sonoma laptop.

I don't think it gets any cheaper...

[Dr. Anthony]

Thanks for the info guys.

Just a bit of an update. I brought it by my friend's shop. We took it for a test drive. It was hard to replicate. (of course) However, we did a bit of a stress test by holding the brake and trying to build some boost stationary. (yep, I know this is hard on the transmission) From that (also had 2 techs listen for it) it sounds like a boost leak somewhere.


We did notice some soot buildup around the bypass valve, and also some soot where the pipe goes into what looks like throttle (is this normal?)

[boredincl]

Originally Posted by Dr. Anthony

Thanks for the info guys.

Just a bit of an update. I brought it by my friend's shop. We took it for a test drive. It was hard to replicate. (of course) However, we did a bit of a stress test by holding the brake and trying to build some boost stationary. (yep, I know this is hard on the transmission) From that (also had 2 techs listen for it) it sounds like a boost leak somewhere.


We did notice some soot buildup around the bypass valve, and also some soot where the pipe goes into what looks like throttle (is this normal?)

Whats the latest with your X?
I have the same issue/noise so I pulled the inlet air tubes on low pressure turbo (lower big turbo) and the high pressure Turbo (top turbo) to check for shaft play. lower turbo is fine, but the top turbo has play in the shaft which is causing the compressor wheel to rub under full boost. I am in the process of finding a replacement CHRA (center section of turbo) or a rebuilt turbo and have been told buy 2 rebuilders who spoke to Borg Warner that it is a dealer only item.
I am not convinced that that is the case as B/W is having them rebuilt so they must be available unless they are rebuilding it themselves.
Has anyone had luck finding a replacement unit other then through BMW? My turbo part number is 5439 971 0088 (BorgWarner KP39-1873ECD310.12ACCXX) BMW part #11657811405.

[Dr. Anthony]

Originally Posted by boredincl

Whats the latest with your X?
I have the same issue/noise so I pulled the inlet air tubes on low pressure turbo (lower big turbo) and the high pressure Turbo (top turbo) to check for shaft play. lower turbo is fine, but the top turbo has play in the shaft which is causing the compressor wheel to rub under full boost. I am in the process of finding a replacement CHRA (center section of turbo) or a rebuilt turbo and have been told buy 2 rebuilders who spoke to Borg Warner that it is a dealer only item.
I am not convinced that that is the case as B/W is having them rebuilt so they must be available unless they are rebuilding it themselves.
Has anyone had luck finding a replacement unit other then through BMW? My turbo part number is 5439 971 0088 (BorgWarner KP39-1873ECD310.12ACCXX) BMW part #11657811405.

So here's your update... My sound got worse as I put more mileage on the vehicle.

I thought it was my turbos. I bought bohl turbos and had them installed at a shop as I didn't have the time and just wanted it "done" The day it was supposed to be done, the guy calls me and says "There's a manifold stud/bolt on your head thats broken" I asked him to remove it, drill it out.. whatever, just get it done. (I had supplied all new gaskets, bolts, o-rings..etc) He claimed he wasn't able to, but said "it'll be fine.." He bolted it all back together with the new turbos, new seals around all the charge pipes, and a new red chargepipe. He also couldnt find my supplied gaskets that are used for the turbo to the manifold. So he reused my old gaskets. Anyways, he Started it up and got the EXACT SAME SOUND.
Except now, its worse. I should have just done it myself. Anyway, it'll be torn down next week and if I have to rip the head off to have it drilled out, so be it. I'll use all brand new gaskets as well for obvious reasons. But I honestly feel the noise I'm getting is definitely from these gaskets.

my old turbos had some play, but nothing significant. Again, none of the impellers were rubbing against the housing tho.
Hope this helps

TLDR: Replaced turbos, it wasn't the turbos.

[boredincl]

Originally Posted by Dr. Anthony

So here's your update... My sound got worse as I put more mileage on the vehicle.

I thought it was my turbos. I bought bohl turbos and had them installed at a shop as I didn't have the time and just wanted it "done" The day it was supposed to be done, the guy calls me and says "There's a manifold stud/bolt on your head thats broken" I asked him to remove it, drill it out.. whatever, just get it done. (I had supplied all new gaskets, bolts, o-rings..etc) He claimed he wasn't able to, but said "it'll be fine.." He bolted it all back together with the new turbos, new seals around all the charge pipes, and a new red chargepipe. He also couldnt find my supplied gaskets that are used for the turbo to the manifold. So he reused my old gaskets. Anyways, he Started it up and got the EXACT SAME SOUND.
Except now, its worse. I should have just done it myself. Anyway, it'll be torn down next week and if I have to rip the head off to have it drilled out, so be it. I'll use all brand new gaskets as well for obvious reasons. But I honestly feel the noise I'm getting is definitely from these gaskets.

my old turbos had some play, but nothing significant. Again, none of the impellers were rubbing against the housing tho.
Hope this helps

TLDR: Replaced turbos, it wasn't the turbos.

Ouch, That sucks! Good luck with it and thanks for the update.

[Proflyer]

Originally Posted by Dr. Anthony

So here's your update... My sound got worse as I put more mileage on the vehicle.

I thought it was my turbos. I bought bohl turbos and had them installed at a shop as I didn't have the time and just wanted it "done" The day it was supposed to be done, the guy calls me and says "There's a manifold stud/bolt on your head thats broken" I asked him to remove it, drill it out.. whatever, just get it done. (I had supplied all new gaskets, bolts, o-rings..etc) He claimed he wasn't able to, but said "it'll be fine.." He bolted it all back together with the new turbos, new seals around all the charge pipes, and a new red chargepipe. He also couldnt find my supplied gaskets that are used for the turbo to the manifold. So he reused my old gaskets. Anyways, he Started it up and got the EXACT SAME SOUND.
Except now, its worse. I should have just done it myself. Anyway, it'll be torn down next week and if I have to rip the head off to have it drilled out, so be it. I'll use all brand new gaskets as well for obvious reasons. But I honestly feel the noise I'm getting is definitely from these gaskets.

my old turbos had some play, but nothing significant. Again, none of the impellers were rubbing against the housing tho.
Hope this helps

TLDR: Replaced turbos, it wasn't the turbos.

Sure hope you didn't pay for someone to put it back together broken! If he couldn't get the stud out, why didn't he stop and find someone who could?

Bet that's your issue though, it sounds like a vac/pressure type noise that'd get louder with increased manifold pressure (increased load/RPMs). If you had an internal turbo issue you likely wouldn't hear it AND your turbo would be smoked quick. Don't forget those things spin at 25,000+ RPMs.