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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Hearing a shuddering sound after 55+mph



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      09-28-2021, 08:26 PM   #1
BozoBlaster
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Hearing a shuddering sound after 55+mph

'07 335i e92 automatic transmission. I am hearing and feeling (in seat,not steering wheel, very faint though) a shuddering sound like I'm driving over the intermittent rumble strips in between lanes, not the solid strips in the emergency lane, at about 55+mph at low rpms when cruising, can't tell of it happens under load because previous owner put in upgraded exhaust system so during acceleration its too loud to tell if sound is still persisting, want to try to narrow down what it could possible be, looking into it, seems like it's leaning towards torque converter shudder but I want to try to be open to everything else, the TC shudder symptoms occur for others mainly it seems at lower speeds and when under load so I'm not wanting to point my finger yet and say "thats it!". Only owned the car for a few weeks now and when I bought it the dealer had the wheels aligned and balanced, I'm hoping that it just wasn't balanced properly and needs to be done the correct way. Or if it is TC shudder then adding the lubegard additive should hopefully fix. Just want to try and confirm what the issue is before I start throwing money at problems that aren't actually problems. Appreciate any and all feedback! Thanks!!
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      11-11-2021, 08:41 PM   #2
leathers
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Definitely gets the wheels rebalanced to at least eliminate that. I've had this issue with my E90 before - had to get the more experienced guy at the tire store to do the balancing. You could have slightly bent rim or two also.
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      11-17-2021, 04:00 PM   #3
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Quote:
Originally Posted by leathers View Post
Definitely gets the wheels rebalanced to at least eliminate that. I've had this issue with my E90 before - had to get the more experienced guy at the tire store to do the balancing. You could have slightly bent rim or two also.
Thank you for your reply and input! I do have aftermarket aluminum 5-spoke wheels with pretty big spaces between each spoke, I wouldn't doubt the previous owner hit a pot hole and bent one of the wheels slightly. I'll have to do a road force alignment instead of the typical alignment and hopefully that will tell me if its wheels or not. It has seemed like its been getting slightly worse too.
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      01-17-2022, 06:12 PM   #4
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Getting the same thing. Did you resolve your issue?
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      01-20-2022, 09:48 PM   #5
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Have not done anything yet, haven't driven the car much and try not to put my foot down ( its so hard not to ) but it still seems to be getting slightly worse. I'm 99%sure its the transmission, not 100% but its more of an intermittent " brr-brr-brr-brr" sound rather than just a constant " brrrrrrrrrr" sound making me thing its something to do with a certain spot in the gearing?
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      05-22-2022, 06:05 PM   #6
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Did a transmission fluid and pan/filter change, seems better but after driving it a few times I don't think it's going my away completely.. Really hoping it's not the TC!!! Is it possible to remove TC out of of transmission and have it rebuilt if I drop the engine and transmission or is it not worth spending the time and look into replacing the transmission, also if a replacement is what's more necessary, are there any upgraded versions of the DCT e92 transmission? Or just another stock one that will only last a certain amount of miles, I'm running FBO (vrsf charge pipe w/hks blow off valve, vrsf 7.5" stepped front mount intercooler, vrsf turbo outlets, vrsf silicone inlets, vrsf dual cone intake filters, vrsf catless downpipes, 3" catted muffler delete exhaust, all with a stage 2+ MHD 91 octane tune) and will be abusing the transmission so if there are options for a transmission that will handle better power I would love to know.
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      05-22-2022, 06:10 PM   #7
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I have narrowed it down to start at about 60 miles an hour in 5th gear, with low load, below 3.5k-3k rpm, cruising. It's hard to hear it with the drone of my exhaust and with the catless DPs it's even louder but you can sure feel the "brr-brr-brr-brr-brr-brr", consistent and even but gets faster as I accelerate.
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