Over the last 3 months on 2 occassions I have had the speedo stop working. The 1st time , after driving for approx 50 mls I stopped for 5 mins, switched off the engine, but when I switched on again the speedo stopped working with the calibration fiqure on the digital screen. I switched off and on with no succcess. i then tried switching on with the trip switch pressed in but again no success. Drove using the rev counter - luckly no speed traps. Parked the car for 2hrs, switched on speedo working. 2nd time last night, same occassion , short stop switch on no speedo but this time no speedo even after standing for 2 hrs. However , got home parked in the garage, tried switching on amd off , guess what speedo OK.
I have had one suggestion that moisture might be getting in the ECU. 1st time, no rain during the drive, 2nd time pouring rain.
Any ideas, it's no great having to guess revs vis speed
