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      10-30-2020, 07:26 AM   #1
Azure350z
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Drives: BMW G20 330i
Join Date: Oct 2020
Location: UK

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Front suspension rumble normal?

Hi all, I picked up an 18 month old 330i in September. The car is in good condition but one thing that is driving me nuts is the front suspension.

Unfortunately I haven't been in enough of these cars to know if it's normal or not and the wait to get in to a dealership for investigation is ridiculous at around 2 months.

Basically if I'm driving over a rough road surface the front suspension is quite noisy, I hear every bump in the road that the wheels go over.

It's less pronounced in sports mode with the stiffer suspension (adaptive dampers) but its still there.

I wouldn't describe it as a knock, more of a rumble and only from the front.

There's nothing in the car that would be rattling around as its empty and sounds like its coming from the suspension and not inside the car.

I suspected it was the run flat tyres so changed them to star marked michelin mps4s but the noise is still there.

Does anyone know if this is normal and a trait of the car or likely to be a suspension problem?

Even my Mrs vw polo is quieter on rough road surfaces than mine
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