Speedo and Tach

I have 95 VR6 - Occasionaly on the first start of the day , the Speedo and Tach dont work. The Tach needle pulses as soon as you turn the key on . It lasts for 10 minutes or so and then starts working again. any ideas?

You replace the ignition switch ever, vw haslots of issues with them. If the switch has been replaced you will most likely need a new tach, I see it all the time.