that is the important thing to do. Besides distributor caps and -rotors, air leaks in intake system this is the most common fault. More than 2% difference in throttling valve actuation, and your 750 runs in limpmode as a safety precaution, and that is decided by the EML, not be you ;-)
Instructions on my website below, click and search for cleaning the throttling valves.
But I am glad that you solved it. Here some more data and pics. Maybe you can translate that to English.






stuck brush

My favourite one, remember, Take ;-)


E32 750iL 11/88, E32 750iL Highline 03/90
7 series Tech Tips

• Single most important maintenance EVER!! (LONG) (url) - 750ilinoz 2008-08-25 10:02:36 (742 views)
  • Re: Single most important maintenance EVER!! (LONG) - jamesbarnes 2008-08-26 16:21:57 (106 views)
  • mine idles at 500-600 rpm but no vibration (nt) - alv12 2008-08-25 23:53:58 (95 views)
    • Re: mine idles at 500-600 rpm but no vibration - 750ilinoz 2008-08-26 00:41:18 (94 views)
  • since years I am 'preaching this' ;-) (pic) - shogun 2008-08-25 18:30:34 (227 views)
    • stuck brushes biggest culprit - 750ilinoz 2008-08-25 19:34:18 (119 views)
      • Re: stuck brushes biggest culprit - mercwarr 2008-08-26 20:44:56 (78 views)
        • Re: stuck brushes biggest culprit - 750ilinoz 2008-08-26 20:50:24 (85 views)
      • springs stronger, basically good idea (url) - shogun 2008-08-25 21:39:05 (114 views)
        • Re: springs stronger, basically good idea - 750ilinoz 2008-08-25 22:00:40 (77 views)
      • But stronger springs = faster wear (nt) - Patrick C 88 750 160K 2008-08-25 19:40:38 (79 views)
        • Teflon!! - 750ilinoz 2008-08-25 19:41:55 (79 views)
  • What is a DK? - geerhed 2008-08-25 10:34:08 (121 views)
    • Re: What is a DK? - 750ilinoz 2008-08-25 10:48:42 (140 views)
      • doing this week...hope it works for me (nt) - eliasazem 2008-08-25 11:20:09 (99 views)
        • EML problem with LPG powered V12 - bmw750 2008-10-02 17:38:33 (79 views)