Knocking sound when accelerate after installing new motor mounts. on 1999 Mercedes-Benz SL500

motor mount and trans.mount fits right . knocking noise coming from underneath passenger side. especially if turning right. no more noise after cruise 25 mph.

Asked by for the 1999 Mercedes-Benz SL500
If the noise only started AFTER the mounts were replaced , maybe re-check ALL work as a start.