Motorraum: clear flood mode....

[Erich]

Wieder mal was dazu gelernt von Bill/Rainman.
Geht hier darum was der Grund fuer schlechtes Starten ist.

Sollte der Motor schlecht anspringen auf normale Art und Weise ohne Treten des Gaspedals, mal versuchen das Gaspedal voll durchzutreten und dann zu starten.
In dieser Stellung werden die ESP nichts einspritzen, der sogenannte" clear flood mode", also auf Deutsch, Beseitigung der Ueberflutungs-Stellung.
Noch ein bischen mehr dazu auf Englisch von Bill

That's typical of either a bad check valve in the pump in which case the
number that shogun gave you will work if you pull the fuel pump out and replace the original check valve... It can also indicate a couple of other things such as leaking injectors which would also allow the fuel pressure to bleed down and would tend to make a hot engine flood so that it would take a little more cranking to start... If you hold the gas pedal all the way to the floor on a hot start does it start easier than if you give it no gas, If yes then that tends to indicate that its a leaking injector (1 or more) causing excess fuel in the manifold , causing a flooding condition which you have to crank until it clears, by holding the pedal to the floor it shuts the injectors off while cranking... this is the clear flood mode.... If holding the pedal to the floor doesn't help then its a bad check valve or a bad pressure regulator.., you can test to get a basic idea first by putting a fuel pressure gauge on it and cranking it to see how high the pressure goes and then letting it sit and see how quickly the pressure bleeds down... It should hold with virtually no leakdown for at least 1/2 hour min. IF it does leak down then you can pinch off the return line coming from the fuel pressure regulator back to the fuel tank and check again to see if it bleeds down, also remove the vacum line to the pressure regulator and see if any gas comes out of there. If these things make no difference then it narrows it down to fuel injectors leaking or check valve leaking.

Hier der ganze thread, sehr lang, weil ich da auch mitgemischt habe
 http://www.bimmer.info/forum/showthr...8&page=1&pp=10