The motor mounts its what hold your motor and keeps it in place , making it smooth. If you see it moving all over it is the mounts , depends what vehicle it is you should be able to see them as they hold the engine in place and have rubber inside , if that rubber its cracked or broken most likely it is the motor mounts.... you should be able to see them , Volkswagen Passat 1.8L Engine Motor :EMT8997 - Front Left Engine Mount
EMT8998 - Front Right Engine Mount
EMT8999 - Transmission Left or Right Mount
EMT8999 - Transmission Left or Right Mount
1 people found this helpful.