Engine mount wear
The hydraulic engine mounts on BMW's front-drive-based compacts wear and collapse, bringing vibration at idle and a clunk on gear changes. Owners have reported to NHTSA a mount replaced at about 37,000 miles on a 2021 2 Series Gran Coupe and twice on a 2019 X2, and parts sellers describe the same wear on the X1 and X2. How often it hits the M235i is not known.
How to check
Feel for vibration through the seat at idle in Drive, listen for a clunk when shifting between Drive and Reverse, and look for mount replacement in the records.
