Hi I've got a 2012 skoda superb estate, and have a knocking on the front passenger side when ever I go over speed humps or uneven surface, I've had lower control arms replaced and all other joints seem fine, and mechanic can't find any knock when car is lifted. After car has been in the air knocking seems to disappear for about a week then starts again. Just read somewhere that it could be top suspension mount, is this something anyone else has had, as like I say we can't get it to knock when car is off the ground. TIA

Probably worn shocks. I hadn't realised mine were noisy until I replaced them and the car was suddenly much quieter.