The bushings for the shifter lever wear out to the point where they break and fall out. This causes excessive movement (loose feel) in the shifter lever and a clanging-type noise when changing gears.
Car Problem Reports
Mercedes-Benz 190E Shifter Lever Bushings May Break Causing Loose Feel/Noise
Mercedes-Benz 190E Problem
Average Mileage: 104,500 mi (74,000 mi - 135,000 mi)