BMW Repair: 1984 318i BMW, 1984 318i bmw, speedo

Question
Ok.. my speedo keeps dropping out. and i have to hit the screen to get it working again?

help?

Answer
While hitting it and temporarily making it work and your frustrations have been treated it maybe causing more damage due to the age.The cluster can be removed and checked for possible gears that are broken.Go to Bavauto.com.or check for a use unit,the gears can be bought new.