T5 Sport 2008 - I have a fault that causes my instrument cluster to flash on and off, resetting my clock, current mileage distance etc. I have asked local garage to check this during service and mot but they said they could not get the fault to occur. My screen has a wiper sensor. This fault occurs when I turn the wipers and lights on. Usually a few times and then stops. Sometimes not at all. The garage said it is likely a faulty instrument cluster, but I don’t think it is. Why would this only occur when the wipers are are on first setting and with the side lights on? Any advice much appreciated.