We have just literally put our car into the Dealer to fix a rear windscreen washer hose issue, we told them that while they were there (and since its under warranty) there was a clunking noise from the front passenger side when going over humps, bumps and potholes etc.
They did a health check as part of the service and found that there were THREE Transportation Blocks which were left in the passenger side which should be removed by the dealer from a PDI check. This caused some damage to the car and the dealer has coughed up the cost - which is good!
Worth a check!