New 2018 M3! First Question

Rkt48 · 02-13-2021, 07:58 AM

I picked it up a few weeks ago. 25k miles. Exec pack, full black leather, DCT

I have disconnect the active sound to better hear the car and I have noticed a ossilation at 70 mph in 7th gear that is a low frequency waaahhhhhh waaahhhhh with each way at about 1.5 seconds long. If I drop a gear to 6th maintaining same speed the wah speeds up to about once every half second. Any thoughts ? It sounds like it is coming from the engine area. I don’t think it is tire related as it changes when shifting gears. It is somewhat annoying as I can hear it due to low frequency when radio playing etc. over a long trip I can see it being a real bummer. Thanks for any advice!

hoppes-no9 · 02-13-2021, 09:58 AM

Can't help you with the noise issue, but that's a great-looking ride.

Imperial328i · 02-13-2021, 10:24 AM

M cars make a lot of noise. Spend some time with it and see if it gets worse? I know I have to be careful not to drive myself crazy listening to every little sound my F80 makes. Congrats btw! One of few other F80's I've seen that have the M side skirt decals.

zamboni · 02-13-2021, 03:03 PM

Quote:

Originally Posted by Imperial328i

M cars make a lot of noise. Spend some time with it and see if it gets worse? I know I have to be careful not to drive myself crazy listening to every little sound my F80 makes. Congrats btw! One of few other F80's I've seen that have the M side skirt decals.

Nice wheels set.

Imperial328i · 02-13-2021, 10:39 PM

Quote:

Originally Posted by zamboni

Quote:

Originally Posted by Imperial328i

M cars make a lot of noise. Spend some time with it and see if it gets worse? I know I have to be careful not to drive myself crazy listening to every little sound my F80 makes. Congrats btw! One of few other F80's I've seen that have the M side skirt decals.

Nice wheels set.

Thanks man! Happened into them because I was looking for a winter setup and someone local had them for sale. I really like them!

02-13-2021, 07:58 AM	#1
Rkt48 Enlisted Member 52 Rep 34 Posts Drives: BMW F80 M3 Alpine White-SOLD Join Date: Feb 2021 Location: Missouri iTrader: (0)	New 2018 M3! First Question I picked it up a few weeks ago. 25k miles. Exec pack, full black leather, DCT I have disconnect the active sound to better hear the car and I have noticed a ossilation at 70 mph in 7th gear that is a low frequency waaahhhhhh waaahhhhh with each way at about 1.5 seconds long. If I drop a gear to 6th maintaining same speed the wah speeds up to about once every half second. Any thoughts ? It sounds like it is coming from the engine area. I don’t think it is tire related as it changes when shifting gears. It is somewhat annoying as I can hear it due to low frequency when radio playing etc. over a long trip I can see it being a real bummer. Thanks for any advice! Attached Images
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02-13-2021, 09:58 AM	#2
hoppes-no9 Private 60 Rep 87 Posts Drives: '18 F80 ZCP 6MT Join Date: Sep 2018 Location: Maryland iTrader: (0)	Can't help you with the noise issue, but that's a great-looking ride.
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02-13-2021, 10:24 AM	#3
Imperial328i Lieutenant 277 Rep 558 Posts Drives: 2015 MGM 328i, 2017 LBB M2 Join Date: Jan 2018 Location: Southern Maryland iTrader: (1)	M cars make a lot of noise. Spend some time with it and see if it gets worse? I know I have to be careful not to drive myself crazy listening to every little sound my F80 makes. Congrats btw! One of few other F80's I've seen that have the M side skirt decals. Attached Images __________________ 2017 F80 ZCP - Mineral Grey Metallic
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