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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions Different Sound and Vibration on my G20 330e

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      10-24-2024, 06:35 AM   #1
egomanyag
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Question Different Sound and Vibration on my G20 330e

Hi guys, I bought this 330e about 1 year ago as a second hand and I used it as a very nice car until now. However, in the last month, after the 80k mile maintenance, the car has changed completely.

First of all, I want to talk about the vibration. When I start the car, there is an incredible shaking when it is cold start, but after driving for a while, this vibration decreases as it warms up, but another thing is, no matter how much the car warms up, when I put it under load (on a hill) and put it in reverse and neutral, it still continues to shake incredibly. At first, I thought it was the spark plugs, I wonder if it was due to maintenance because when I put the car under load (when I floor the gas) I hear that beautiful b48 sound from the back (with the sound actor), but it seems like there is a very different sound. I can't explain it exactly right now, but it sounds like a metal sound. It is a sound like the car is pushing itself too hard, I have never heard it before. But since there is no warning light, I put that possibility out of my mind. Another issue related to these is that when I touch the gas pedal a little and give torque at slow speeds, there is a shaking in the vehicle as if someone is kicking it (you'd think it's a Lambo). My final guess is that it is the engine mount, but when I revved the engine, I couldn't see anything other than the normal 1-2 cm shaking from side to side.

Thank you in advance for your help.

Info: 2 weeks ago I hit a very big pothole and the rods were damaged beyond repair, my rim cracked a little.
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      10-24-2024, 02:02 PM   #2
egomanyag
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Some Update: I tried to load car with pressing brake and gas at the same time on reverse, it doesn't look good

https://drive.google.com/file/d/1lLd...ew?usp=sharing

My car is not diesel, this sound comes from vibration

https://drive.google.com/file/d/1BBw...ew?usp=sharing
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      10-24-2024, 02:15 PM   #3
komoornik
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"final guess is that it is the engine mount, but when I revved the engine, I couldn't see anything other than the normal 1-2 cm shaking from side to side"

That engine is bumping around like crazy, that's not 1-2cm shaking.
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