Vibration starting at about 95MPH

Cavu_M5 · 04-12-2019, 04:54 PM

I’ve noticed a vibration start at about 95MPH. Up through 110MPH it seems to stay about the same. I don’t think it’s coming through the steering wheel, but feels like something in front.

Anybody else have it?

stealth70mde · 04-12-2019, 05:21 PM

Quote:

Originally Posted by Cavu_M5

I’ve noticed a vibration start at about 95MPH. Up through 110MPH it seems to stay about the same. I don’t think it’s coming through the steering wheel, but feels like something in front.

Anybody else have it?

I had this on my M4.

Turned out it was a very slight bend of the inside lip on one of my front rim. Maybe a pothole or too aggressive on a curb at the track, I dunno.

With time, it was degrading the interior of the tire around that spot faster and became worse as the tire was wearing.

No one ever mentioned it when I was replacing tires. I saw it one day at the track for myself when I was having the tires replace onsite and looking at what they were doing. If I didn't say anything they would have just give back the car without saying anything...

Cavu_M5 · 04-12-2019, 07:16 PM

Quote:

Originally Posted by stealth70mde

I had this on my M4.

Turned out it was a very slight bend of the inside lip on one of my front rim. Maybe a pothole or too aggressive on a curb at the track, I dunno.

With time, it was degrading the interior of the tire around that spot faster and became worse as the tire was wearing.

No one ever mentioned it when I was replacing tires. I saw it one day at the track for myself when I was having the tires replace onsite and looking at what they were doing. If I didn't say anything they would have just give back the car without saying anything...

Thanks Stealth, I was thinking it might be rim related, but didn’t see anything on the outside. I will crawl under there this weekend and take a look.

NYG · 04-12-2019, 08:57 PM

Does it happen while you're braking? If so it's your rotors.

Next Phase · 04-13-2019, 12:15 PM

Without more info, it could be tires, tire pressure too low or bent rim. Take it into a tire shop and have them take a look and rebalance. Could have lost a wheel weight.

How many miles on the tires?

dalixz25 · 04-13-2019, 02:36 PM

Tire pressures? Probably doesn't hurt to check them periodically depending on how often the car is driven.

x5man · 04-13-2019, 11:02 PM

This is a legal department feeling not comfortable.

Wait until 125 mph - they will call you and offer $$$ to slow down....

Cavu_M5 · 04-14-2019, 11:33 PM

The vibration doesn’t happen under braking, I’m accelerating from 95MPH

I took a look today, but it’s pretty hard to see without getting it jacked up. As for pressures, I think they’re ok, but I will check.

I’ve only got about 3,300 miles on it, but I do recall a pretty good bump over a bridge expansion on the freeway a few months ago. It could have bent a rim I suppose. Careful on fwy 280 in Palo Alto you NorCal guys...

The excursions above 95MPH aren’t everyday, so I’ll probably wait until the next service to have them look at it.

04-12-2019, 04:54 PM	#1
Cavu_M5 Enlisted Member 30 Rep 30 Posts Drives: 2019 M5 Donington Gray Join Date: Oct 2018 Location: Nor Cal iTrader: (0)	Vibration starting at about 95MPH I’ve noticed a vibration start at about 95MPH. Up through 110MPH it seems to stay about the same. I don’t think it’s coming through the steering wheel, but feels like something in front. Anybody else have it?
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04-12-2019, 08:57 PM	#4
NYG Brigadier General 10835 Rep 3,715 Posts Drives: Audi R8 Join Date: Feb 2017 Location: Brooklyn, NY iTrader: (0)	Does it happen while you're braking? If so it's your rotors.
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04-13-2019, 12:15 PM	#5
Next Phase Private 41 Rep 82 Posts Drives: 2019 M5 Join Date: Apr 2019 Location: NC iTrader: (0)	Without more info, it could be tires, tire pressure too low or bent rim. Take it into a tire shop and have them take a look and rebalance. Could have lost a wheel weight. How many miles on the tires?
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04-13-2019, 02:36 PM	#6
dalixz25 Private First Class 42 Rep 114 Posts Drives: 991.2 GT3 RS, Tesla M3P Join Date: Feb 2019 Location: SF Bay Area iTrader: (0)	Tire pressures? Probably doesn't hurt to check them periodically depending on how often the car is driven.
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04-13-2019, 11:02 PM	#7
x5man Private First Class 81 Rep 101 Posts Drives: 2024 M8 Gran Coupe Join Date: Aug 2015 Location: Boston, ma iTrader: (0)	This is a legal department feeling not comfortable. Wait until 125 mph - they will call you and offer $$$ to slow down....
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04-14-2019, 11:33 PM	#8
Cavu_M5 Enlisted Member 30 Rep 30 Posts Drives: 2019 M5 Donington Gray Join Date: Oct 2018 Location: Nor Cal iTrader: (0)	The vibration doesn’t happen under braking, I’m accelerating from 95MPH I took a look today, but it’s pretty hard to see without getting it jacked up. As for pressures, I think they’re ok, but I will check. I’ve only got about 3,300 miles on it, but I do recall a pretty good bump over a bridge expansion on the freeway a few months ago. It could have bent a rim I suppose. Careful on fwy 280 in Palo Alto you NorCal guys... The excursions above 95MPH aren’t everyday, so I’ll probably wait until the next service to have them look at it.
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