timonpumba

Hello. I come from Germany, sorry for my bad English. I have a W205 43 Amg with wave-like vibrations at approx. 120-130 km/h, clearly noticeable on the steering wheel, almost not at all on the rest of the vehicle. At around 90-100 kmh you can also hear a rhythmic, wave-like, bass-heavy thumping in the interior of the vehicle (I think it's most audible at the front right), it sounds like vibrations are superimposing one another.Has anyone ever had a problem like this? The drive shaft has already been replaced and balanced, without success.

Doctah_Jones

The 19" wheels bend very easily on these cars. I have had to get mine straightened twice. This is a subtle thing too, I couldn't see the bend but I could feel it. The bent wheel was something like 2mm out of round.

timonpumba

The noise is also present with the 18 inch winter wheels.The tires are new

jeltok

For me it was a cracked 18" factory wheel. Dealership replaced it (since I had purchased wheels/tires warranty), and the vibrations were gone.

W205C43PFL

I would start with a checking for uneven wear on tires then checking if wheels are bent or cracked like others mentioned, correct tire pressures if needed. Getting rid of run-flats. If that doesn't do it, do an alignment and wheel balancing. If it still doesn't work, it might be a driveshaft issue. It is a common thing this car. It could be a broken driveshaft or just misbalanced driveshaft. https://mbworld.org/forums/c450-c43-...bration-i.html