Jerks when coming to a stop

Are you feeling a "bump stop?" As approaching the stop does it feel like the a possible harsh downshift before you reach the stop? Is you car a 330i Sedan or Coupe? 2006 was the last year of the E46 coupe and the first year the E90 sedan was introduced. Owners had complaints of a bump stop on the first run of the E90 production that was corrected by software. If it's bad enough to raise concerns I'd recommend getting it to a qualified mechanic that can diagnose it.