Hello everybody and a happy new year. My IQ has the urban pack that includes rear parking sensors.  Most of the time as soon as you select reverse they will 'flatline' or beep constantly and it's driving me mad I'm assuming it's maybe down to a faulty sensor or wiring but can anybody shed light on how to go about checking them?  Is there a way to work out which sensorit may be or is it a case of replacing the lot? To be honest I don't really need them (famous last words...) so if