I have a 1993 190E 2.3 with 161K on the clock. Recently, I started having problems with low idle when warmed up, especially on warm starts. I traced down that the linkage on the throttle body is not actuating the microswitch all the time (if I can catch it with a low idle and it doesn't die, I can click the microswitch and idle will pick up and stabilize). Anybody got pictures and a procedure for adjusting the cable?