In Reply to: rough idle & start! posted by pierre on January 12, 2001 at 09:10:53:
at that age adjustments might be necessary. cold start system check points. 1) cold start injector(squirts small amount of fuel into intake manifold. 2)thermal time switch (on thermostat housing area (tells c/s injector when to open and when to stay closed). 3) throttle plate stop screw (idle adjustment only). 4)idle control valve(automaticaly adjust engine idle rpm when it is functionin properly) had to tweak all of the above in my 82 528e. purs like a kitten now (219,160 mi when purchased last month. write for more cool tweaks if you are to.