And there I was fixing things like idle control valves/motors; unblocking throttle body drillings; checking for vacuum leaks all over when all I had to do was tighten the throttle cable! What a fool I have been! Don't like your fix RB - sorry. I think you are adjusting the auto box kick-down cable any way!
The ECU will do all it can to keep the idle at its preset levels in all conditions (hot/cold/air con on-off/park or in gear) all we as maintenance persons do is fix broken bits so the ECU can do its job. Tightening cables does not cut it at all. 7 - 8- 9 out.
Good - Fast - Cheap: Pick any two.
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
E21 318i; E30 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i