I'm experiencing occassional cruise control surge with my W201 specially when I'm slowing down from 100+kph the throttle will just suddenly "sink" in. On the brighter side, at least now I know that my cruise control is "still alive"

But on the other hand, it's a nice to have feature for me since I do a lot of highway driving, problem now is a good shop with actual experience in fixing and testing cruise control (a lift or dyno test at least). Is this something Manhattan or Sunshine can do?