[vinzcast21]

My 340i went to the dealership and the SA told me they are going to do software update for the idling issue (stalling for me). and transmission reset.

they did a software update to the newest ISTA and re-learn the valvetronic lift position.

my car feels different now, the Idle at cold start dropped until 800 rpm, kind of high but no more stumble and vibration. the exhaust flap is now closed all the time when cold start and in comfort mode, as soon as I switch to sport, and hit the pedal a bit the flap opens (this in Park). Also since they reset the tranny adaptation, my car shifts being jerky as hell, waiting until it adapts

What do you guys think about the update?

[tuco44]

Sound like progress is being made. The software update fixed the start-up stumble on my 2016 340i.

[vinzcast21]

Originally Posted by tuco44

Sound like progress is being made. The software update fixed the start-up stumble on my 2016 340i.

yep! so glad they figured it out to fix the problem! its just weird that now when starting up the flap never opens anymore

[ryanpat198808]

Could I ask what was exactly happening with your car as my bmw 340i sometimes feels as if it’s going to stall. When idling the revs sometimes drop below 500 revs and then pick back up. My car usually isles at 600 revs and then occasionally it drops below to around 300-400 and then it goes back to 600. This has happened to me whilst the car is warm.

[vinzcast21]

Originally Posted by ryanpat198808

Could I ask what was exactly happening with your car as my bmw 340i sometimes feels as if it’s going to stall. When idling the revs sometimes drop below 500 revs and then pick back up. My car usually isles at 600 revs and then occasionally it drops below to around 300-400 and then it goes back to 600. This has happened to me whilst the car is warm.

carbon cannister replaced and valve cover gasket too

[ryanpat198808]

I've taken my car in twice and BMW have said they cannot find anything. It's hard to replicate it as it does not happen that often. The only thing I have is a video from another user showing the same issue. How long did it take you to get all this replaced? By the way what is the carbon canister as all I can find is the micro filter

[vinzcast21]

Originally Posted by ryanpat198808

I've taken my car in twice and BMW have said they cannot find anything. It's hard to replicate it as it does not happen that often. The only thing I have is a video from another user showing the same issue. How long did it take you to get all this replaced? By the way what is the carbon canister as all I can find is the micro filter

mostly a week after the parts. installation was all in a day.

i think its charcoal cannister sorry I'll try to find for part number

[ryanpat198808]

How did BMW find your issue? It's hard to show mine as it doesn't happen all the time

[vinzcast21]

Originally Posted by ryanpat198808

How did BMW find your issue? It's hard to show mine as it doesn't happen all the time

i just talked to the shop tech, explained it happened mostly when after filling up. he said ill check the carbon cannister and then he said there is fuel traces then called up bmwna to get the warranty

[KeelTiii]

New update changed the steering feel a bit. Now it is softer in comfort but still not bad past 60mph. Shifting points were different as well when I picked it up last month. My only problem is the whining when the engine is at operating temperature. I am taking it to the dealership today. Drive belt tensioner had been replaced a few months ago and that solved the mechanical noise that I was hearing with the whining. This is a big deal for me as it is happening all the time and I am afraid to accelerate because it just sounds wrong. It does not do it when the engine is cold, though.

[vinzcast21]

Originally Posted by KeelTiii

New update changed the steering feel a bit. Now it is softer in comfort but still not bad past 60mph. Shifting points were different as well when I picked it up last month. My only problem is the whining when the engine is at operating temperature. I am taking it to the dealership today. Drive belt tensioner had been replaced a few months ago and that solved the mechanical noise that I was hearing with the whining. This is a big deal for me as it is happening all the time and I am afraid to accelerate because it just sounds wrong. It does not do it when the engine is cold, though.

any sound recordings?

[KeelTiii]

Originally Posted by vinzcast21

any sound recordings?

My stupid phone is not picking up any of that high pitched whine. I dropped the car off at Buena Park BMW to have it checked out for the 4th time. Other dealers I tried before did not give a damn but this time I had a tech verify the noise. We will see what happens. I will keep everybody posted. Meanwhile I am trying to find service bulletins. www.aboutautomobile.com is a great website!

[ryanpat198808]

I took my car in for a service yesterday and was told that the charger pressure sensor needed to be changed and that's what is causing the misfire. I asked the after sales advisor who didn't really explain what the part was and why it needed to be changed. Any idea what this part is?

[KeelTiii]

Originally Posted by KeelTiii

My stupid phone is not picking up any of that high pitched whine. I dropped the car off at Buena Park BMW to have it checked out for the 4th time. Other dealers I tried before did not give a damn but this time I had a tech verify the noise. We will see what happens. I will keep everybody posted. Meanwhile I am trying to find service bulletins. www.aboutautomobile.com is a great website!

They recorded a video and sent it to BMW NA for analysis today.

[dsc888]

Originally Posted by KeelTiii

My stupid phone is not picking up any of that high pitched whine. I dropped the car off at Buena Park BMW to have it checked out for the 4th time. Other dealers I tried before did not give a damn but this time I had a tech verify the noise. We will see what happens. I will keep everybody posted. Meanwhile I am trying to find service bulletins. www.aboutautomobile.com is a great website!

I also have had an engine whine in my B58 engine between 1800 and 2000 RPMs that the dealer thinks is normal but seems out of line to me. It happens at all times whether it is hot or cold. They did take of the alternator belt to see if it is the alternator at fault but it wasn't.

When was your winning coming from? Was it at certain engine speeds? Please keep us all posted.

[KeelTiii]

Originally Posted by dsc888

I also have had an engine whine in my B58 engine between 1800 and 2000 RPMs that the dealer thinks is normal but seems out of line to me. It happens at all times whether it is hot or cold. They did take of the alternator belt to see if it is the alternator at fault but it wasn't.

When was your winning coming from? Was it at certain engine speeds? Please keep us all posted.

The dealer again told me that the noise is within spec. I do not know what is within spec anymore. It is happening when the engine is warm. When I accelerate in lower gear the engine starts whining. It sounds like a belt noise to me but they would not even try anything. I am going to be seeing a BMW specialist around here so I will have him check it out.

[bpwj76]

Originally Posted by KeelTiii

The dealer again told me that the noise is within spec. I do not know what is within spec anymore. It is happening when the engine is warm. When I accelerate in lower gear the engine starts whining. It sounds like a belt noise to me but they would not even try anything. I am going to be seeing a BMW specialist around here so I will have him check it out.

I am getting the same type of noise under the same conditions you describe, with the exception that it does it at idle as well. However, it's on the N20 in my 2016 X3. It's loud enough to hear inside the vehicle and it's annoying.

The noise quits when I turn off the A/C, so I'm 99% sure it's the the clutch or pulley or whatever for the A/C. Going to take it to the dealer next week.

[KeelTiii]

Originally Posted by bpwj76

I am getting the same type of noise under the same conditions you describe, with the exception that it does it at idle as well. However, it's on the N20 in my 2016 X3. It's loud enough to hear inside the vehicle and it's annoying.

The noise quits when I turn off the A/C, so I'm 99% sure it's the the clutch or pulley or whatever for the A/C. Going to take it to the dealer next week.

The drive belt tensioner was replaced by the dealer and the rattling that occurred along with the whining is no longer present. However, whining is still persistent. A/C seemed to have made it louder when it was on. I will get to the bottom of this soon!

https://static.nhtsa.gov/odi/tsbs/20...53738-9999.pdf
https://static.nhtsa.gov/odi/tsbs/20...63027-9999.pdf

Could this be related?

[bpwj76]

Originally Posted by KeelTiii

The drive belt tensioner was replaced by the dealer and the rattling that occurred along with the whining is no longer present. However, whining is still persistent. A/C seemed to have made it louder when it was on. I will get to the bottom of this soon!

https://static.nhtsa.gov/odi/tsbs/20...53738-9999.pdf
https://static.nhtsa.gov/odi/tsbs/20...63027-9999.pdf

Could this be related?

Not sure that's related, but I also plan to get to the bottom of it on my F25. Have an appointment with the dealer on 2/21.

I might need to have that insulator checked out on my F30 though. I have a vibration at idle that makes the dash rattle.

[dsc888]

Originally Posted by KeelTiii

The dealer again told me that the noise is within spec. I do not know what is within spec anymore. It is happening when the engine is warm. When I accelerate in lower gear the engine starts whining. It sounds like a belt noise to me but they would not even try anything. I am going to be seeing a BMW specialist around here so I will have him check it out.

Thank you for the update. Sorry to hear yours is still not fixed. And neither is mine. I had my car in for service and the shop foreman said it's within spec also. And they did remove the alternator belt as listed in one of your posted service bulletins and the damper was fine so that's not the cause either. Frustrating for sure.