Had one long beep when selecting reverse on my 53 plate 330i, so ordered a couple of these http://www.ebay.co.uk/itm/PDC-Parking-Sensor-for-Jaguar-Land-Rover-Range-Rover-Sport-2003-2010-YDB500301-/361234186170?pt=LH_DefaultDomain_3&hash=item541b3c3fba Straight swap, no messing around, took 5 mins at the most, now perfect again ;)