u/CodNo277

Hello everyone,

I have recently bought used BMW (exact model in title). I noticed that my car starts vibrating when I accelerate under very low RPM. For example, driving in town at 40-45kmh then slightly braking due to traffic puts me at 1.2k RPM, and when i try to accelerate from that position it starts vibrating or shuddering for a second before speeding up. However when driving on open roads like highways or whatever, that problem doesnt exist, as long as RPM is higher than like 1.5k. I have a ZF 8 with 300k kmh on it, unknown if previous owner ever changed the ATF.
So, is this "normal" behaviour? If not, what is the first thing to check out? Thanks to all in advance!