Just one year after his entry into motorsports in 1972, Scharmann won the 1973 Central European Formula V title in his first self-built cockpit.
Other successes included the German Vice Champion in Formula Super V in the years 1974 and 1976.
His career was culminated by winning the German Formula 3 Championship title in 1977, the then 27-year-old driver's first year in this class.
The championship was won with primary sponsorship from the beer brand Warsteiner and as a member of the racing team Obermoser Jörg.
Scharmann returned to motorsports after a long break to race in his spare time with his own kart ride on courses in Austria.