BMW 325i vibrating under vehicle when accelerating to 20 or 30 miles per hour on BMW 325i

Some BMW 325i owners report experiencing vibrations under the vehicle during acceleration at speeds of 20 to 30 miles per hour. These vibrations may be attributed to a failing flex disc, which can cause pulsing sensations when worn out. Additionally, issues with the rear differential can lead to vibrations that feel as though the differential is moving. Some owners also report a condition known as Center Support Bearing (CSB) failure, which can result in vibrations under throttle when accelerating between 10-25 mph. To resolve these issues, it is advisable for owners to have a thorough inspection of the flex disc, rear differential, and center support bearing to identify and address the root causes of the vibrations.