11-04-2022, 10:14 PM | #1 |
Banned
6962
Rep 3,275
Posts
Drives: E46 M3 Coupe/G80 M3CX
Join Date: Jul 2021
Location: Alberta
|
Drone at 1k rpm
Car has about 2200km on it and just started to notice this drone noise whenever I am off the gas and the engine is slowing the car down. Noise happens right as you are descending to 1k rpm. Sounds like a drone noise and it coincides with some resistance from either the engine, transmission or brakes.
Anyone else have this? |
11-10-2022, 01:51 AM | #4 |
Banned
6962
Rep 3,275
Posts
Drives: E46 M3 Coupe/G80 M3CX
Join Date: Jul 2021
Location: Alberta
|
Yes it's a groan. Not sure if the engine is lugging though, it's just when I slow down and the rpm is around 1k. The transmission dosent shift down either. Not sure why it's programmed to not shift if the result is that nasty groaning sound.
|
Appreciate
0
|
11-10-2022, 08:18 AM | #5 |
Captain
725
Rep 891
Posts |
I read your post again. Mine makes noise when I am on throttle, not off throttle like you. Mine makes this weird groaning/grinding noise on very light throttle applications at the very bottom of a gear - so like if you're in 3rd or 4th with RPMs below 1500 and you give it light gas, it will groan/grind until you get to 1500rpm or 1700rpm or so.
__________________
2023 iX M60
2023 i4 M50 2024 Lexus LC500 |
Appreciate
0
|
11-14-2022, 10:16 PM | #6 |
Banned
6962
Rep 3,275
Posts
Drives: E46 M3 Coupe/G80 M3CX
Join Date: Jul 2021
Location: Alberta
|
Just bumping this. Just curious if this is a characteristic of the drivetrain before i waste a trip to the dealer. Started to happen after my break in service and it's best described as a done or humming when i am decelerating (coasting) to around 1k rpm and at low speeds without any throttle. It's very quiet but, i can only hear it without the radio on and it sounds almost like a friction or rubbing and it does vibrate the wheel at high frequency. When it happens and i shift down it goes away (not touching the throttle) so probably not brake or diff related.
Any ideas? |
Appreciate
1
Race_Doc11480.00 |
12-12-2022, 07:11 AM | #7 | |
Private
1191
Rep 79
Posts |
Quote:
|
|
Appreciate
0
|
12-12-2022, 07:15 AM | #8 | |
Captain
725
Rep 891
Posts |
Quote:
I'm just learning to ignore it. Have you taken yours in yet? I have not but if I decide to do so, I will post what they say.
__________________
2023 iX M60
2023 i4 M50 2024 Lexus LC500 |
|
Appreciate
0
|
12-12-2022, 07:20 AM | #9 | |
Private
1191
Rep 79
Posts |
Quote:
|
|
Appreciate
1
Young04724.50 |
12-12-2022, 07:26 AM | #10 | |
Captain
725
Rep 891
Posts |
Quote:
I only drive in D1 until the car is warmed up or if I'm in heavy city traffic so I can mostly avoid it. I had a client in my car the other week and the noise happened and he definitely had a WTF was that look on his face.
__________________
2023 iX M60
2023 i4 M50 2024 Lexus LC500 |
|
Appreciate
0
|
12-12-2022, 07:34 AM | #11 | |
Private
1191
Rep 79
Posts |
Quote:
The specialists at the dealer were also able to reproduce it, but none could find the cause. |
|
Appreciate
1
bwoodahl275.00 |
11-27-2023, 02:45 PM | #12 | |
Private First Class
275
Rep 179
Posts |
Quote:
|
|
Appreciate
1
Forzanerazzurri6962.00 |
11-27-2023, 04:00 PM | #13 | |
Banned
6962
Rep 3,275
Posts
Drives: E46 M3 Coupe/G80 M3CX
Join Date: Jul 2021
Location: Alberta
|
Quote:
If its normal I am surprised some of the members with more of an OCD attention to detail haven't made a bigger deal about this. |
|
Appreciate
1
bwoodahl275.00 |
11-28-2023, 03:27 PM | #14 | |
Private First Class
275
Rep 179
Posts |
Quote:
|
|
Appreciate
0
|
11-28-2023, 04:04 PM | #15 | |
Banned
6962
Rep 3,275
Posts
Drives: E46 M3 Coupe/G80 M3CX
Join Date: Jul 2021
Location: Alberta
|
Quote:
|
|
Appreciate
1
bwoodahl275.00 |
12-04-2023, 06:27 PM | #16 |
Registered
3
Rep 4
Posts |
I started experiencing this at around 5000 miles on my 2023 M3CX. Hoping that someone / BMW figures it out, the vibration in particular is disconcerting.
|
Appreciate
2
Forzanerazzurri6962.00 bwoodahl275.00 |
12-04-2023, 09:58 PM | #17 |
Banned
6962
Rep 3,275
Posts
Drives: E46 M3 Coupe/G80 M3CX
Join Date: Jul 2021
Location: Alberta
|
|
Appreciate
0
|
12-13-2023, 10:23 AM | #18 |
Private First Class
275
Rep 179
Posts |
|
Appreciate
1
Race_Doc11480.00 |
02-05-2024, 02:56 PM | #19 |
Private First Class
275
Rep 179
Posts |
Additional data points. The issue does not occur until the oil temperature reaches standard operating temperature (about 210°F). For my commute, that is about 35 minutes after I leave (in the morning). Then it is fairly noticeable while driving around -- but mostly during "off throttle" when the engine (at above 1700 RPM) passes through 1200 RPM.
Secondly, when I arrived back home today, car stationary and in Park, I revved the engine to 3500 RPM, removed my foot from the throttle, as the engine passes through 1200 RPM there is a slight shudder. P.S. Cold or warm, the car idles like a dream, silky smooth. |
Appreciate
1
Forzanerazzurri6962.00 |
04-30-2024, 11:07 PM | #20 |
Enlisted Member
95
Rep 40
Posts |
Does anyone have a video of the sound they are experiencing? I’m having something similar.
-only occurs when the car is warm -occurs while moving or stationary (both in gear and neutral) -occurs accelerating or decelerating with foot off gas -only occurs from 1k-1.8k RPM I reproduced the sound while stationary. Not entirely clear the source is under the car but the camera picked it up. Don’t really hear it on the engine area. |
Appreciate
0
|
05-15-2024, 12:18 PM | #22 |
Brigadier General
3864
Rep 3,260
Posts
Drives: 2024 M4 Convertible
Join Date: Jun 2017
Location: USA
|
|
Post Reply |
Bookmarks |
|
|