There is a couple of plugs on the back of the cluster unit that if you hit them with your hand or hit a big bump then they can lose connection. I left my knee panel off cause every now and again I have to finger the back of the cluster to push on the plugs to get it to work again...
Atleast in my case only thing I can do is get new connector plugs and do some surgery.
1999 540i M-Sport
Still fresh and Minty
Black on Black coupe 5spd
1979 Trans Am 10th Anniversary
#16 of 5,683 made
KOI Import Parts-- 513-771-7777