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Der Reset wird folgendermaßen vorgenommen:


1. Batterie abklemmen (zuerst - , dann +)
2. Zündschlüssel nur auf "Zündung ein" (Nicht auf "Anlassen")
3. Die beiden Fahrzeugkabel (+ ; -) fuer 10 Minuten zusammenhalten.
4. Zündung wieder aus
5. Batterie wieder anklemmen (zuerst + dann -)
6. Fertig
 
 
Vier Dinge hat der Reset gebracht:
 
1. Traumstandgas
(Die kleinen Aussetzer im Standgas sind Vergangenheit)
 
2. Schalten tut er butterweich, und zur richtigen Zeit !!
 
3. Seit dem ich den Wagen habe, lebte ich mit Leistungsschwankungen
bei extremen Beschleunigungsphasen !
Und nun habe ich voll per Kick Down von 70-220 durchgezogen ,
und er ging wie eine Rakete, ohne die Gänge reinzuknallen,
und ohne Leistungsschwankungen !
 
4. Bei Beschleunigung aus dem Stand verschluckt er sich nicht mehr !
 
 
Nachtrag/Ergänzung:
 
Der Knackpunkt ist ueber die richtige Reihenfolge hinaus
auch das erneute "Anlernen" der adaptiven Getriebesteuerung
und das neue Synchronisieren der Zylinderbänke durch die EML.
 
(siehe Bild)
 
 
Motor warmlaufen lassen.
Während der Testfahrt 3 x ueber 5000 UPM in Schaltstellung I (ca. 10 Sekunden).
Dann Motor wenigstens 5 Minuten in P oder N laufen lassen.
 
Weitere Ergänzung:
Im US board nachgefragt.
Hier eine einfache und gute Gleichung/Erklaerung:

As you drive Mr. Computer makes adjustments to things it can control
and saves parts of these data in memory which remains
there as long as the memory has power, and that's normally a
long time, measured in years since the battery is recharged
as you drive and the always- on electronics takes days
or weeks to drain a huge car battery if the car is not driven.
 
However, any memory is subject to a glitch that might corrupt
the data in memory. This could be from a software error,
a hardware error, or perhaps even a lightning strike that causes a
huge pulse of energy. It only takes one bit to flip to cause a huge error.
For example, consider these two 16-bit binary numbers and their decimal equivalents:
1100 1100 1100 1100=52428.
1000 1100 1100 1100=36044.
 
So, the bottom line, yes a reset COULD make a big difference
if Mr. Computer is trying to adjust things based on corrupt data.
Remember the data of the ongoing Mars mission became
corrupted and JPL had to do a reset on the rover.

Kurze Übersetzung/Interpretation :
 
Man hat eine Scheibe geputzt und die Elektronik sieht jetzt alles viel klarer.......
 Ergänzung Update 18.3.2004
 
Frage:
 
Heißt das, dass der reset bei meinem L ohne Ausbau des hinteren elektr. Einzelsitzes geht (1,5 h Arbeit !), wenn ich die Masse rechts unter der Auflage des hinteren elektr. Einzelsitzes (von aussen zugänglich !) abklemme und dann im Motorraum Plus mit Masse verbinde ?
 
Antwort:
 
Dazu genuegt es auch, den Minuspol an der Sitzbank abzuklemmen und das Ueberbrueckungskabel an den Pluspol im Motorraum und irgendwo an Masse anzuschliessen.
Zum Ueberbruecken der Pole / Batterieanschlusskabel kann man auch ein normales Ueberbrueckungskabel nehmen.
 
Es ist extra ein Plus-Anschluss im Motorraum, damit bei leerer Batterie nicht die Rueckbank (der Ruecksitz) zum Ueberbruecken ausgebaut werden muss.
Vom Pluspol im Motorraum geht ein dickes Kabel durch den rechten Schweller zum Batterie-Pluspol.
Wenn vorher das Massekabel der Batterie am Blech der Rueckbank entfernt wurde, kann im Motorraum nix mehr funken, weil die Batterie die Energiequelle ist, aber kein geschlossener Stromkreis in der Batterie existiert, wenn das Massekabel weg ist.
 
Sollte der Stromkreis wegen Alzheimer geschlossen sein, dann wird's erst kraeftig funken, das Kabel wird saumaessig heiss und dann wird auch schon die 50 Ampere Schmelz-Flachsicherung, die auf ein Pertinax-Plaettchen aufgenietet ist und in dem dicken Pluskabel sitzt, durchgeschmolzen sein.
Diese Sicherung sieht man meist nicht, weil sie fast schon im Schweller und mit Schrumpfschlauch umhuellt ist.
Das andere, nicht so dicke Pluskabel an der Batterie fuer die normalen Verbraucher, hat auch so eine Flachsicherung.

und die naechste Erfolgsmeldung

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SHOGUN RESET Procedure  & Testimonial

Notes:
The reset procedure is billed as a ‘cheap fix’. It does often give good immediate results, however if there is something wrong with your car then over a 2-8 week period the car will likely return to its original state.
The reset procedure removes all mean values stored by your onboard computer that control engine timing, fuel use etc. As you continue to drive the car, the stored values ‘average out’ to best suit the engine condition.
If your car has for example a leaking intake manifold gasket or broken O2 sensors, the readings are quickly going to become ‘corrupted’ with incorrect information.
This can lead to the engine running too rich or too lean (check your sparks for evidence). Within a short period of time the car will return to rough idle as the underlying problem has not been fixed.
That said – the reset procedure can reset values that are no longer applicable. You may have replaced something on the car (e.g. Catalytic Converters) thus causing a sudden change in normal engine running. The readings stored over 10-20 years will suddenly not suit you recently modified car. The car will however read new values in and average out over time. The Reset procedure simply speeds that process up.
The long and short of it is that this procedure can sometimes fix rough idle and transmission timing and seems to improve the cars performance. However with existing underlying issues as outlined above – it won’t be long before the problems return. Perhaps this procedure could be used if you’re trying to sell your E32 ;-)
Procedure:
1. Disconnect battery cables, first negative, then positive.
2. Cover and protect the battery posts! Leave no potential of a battery short circuit.
3. Turn ignition to position II.
4. Connect both battery cables ("SHORT") for at least 10 minutes. This step drains a capacitor in the ECU/TCU. (Covered the battery with a thick, dry shop towel to prevent actually shorting the battery! – careful of arc welding the back seat! As the battery is still in place, and the cables aren't that long, you could use a very long Craftsman screwdriver and two small vice-grips to actually clamp the negative and positive cables to the metal shank of the screwdriver.
5. Wait 10 minutes - then ignition off, key out.
6. Reconnect battery positive, then negative.
7. OBC says "PPPP", reset time. Start and idle the engine for 5 minutes, then off for five, then out for a drive.
8. Now, with the car in lowest gear (one or two depending on your make), accelerate until at least 5000 rpm is reached. Allow the car to slow to idle, and then repeat two more times. Let the car idle for 5 minutes. All Done!
9. Idle should smooth out over 10-12 miles; shifts should be immediately smoother.
Testimonial
Thanks, Shogun... I would have never thought...
...that something as simple as a "reboot" would have fixed my problems, but I gotta tell you - black magic or not - the "full reset"-procedure worked wonders for my car!
I pulled the battery cables, - then +, ignition to pos II, 'shorted' the battery cables (using a loooong Craftsman screwdriver and 2 sets of vice-grips - yes, battery posts were well isolated. No arc welding in my back seat!). Ten minutes later, ignition off, reconnect + then -, PPPP on OBC, reset clock. Ran the car 5 minutes, then shut down for 5.
I can't find the words to explain the difference. I don't know if this simple act could have made this big of a difference. But first, some anecdotal info:
My car always ran well. It had a bit of a lumpy idle, but pulled smoothly and strongly off idle, and had good power. The shifts were another story - at light throttle applications, the shifts would seem to be a bit 'jerky'; with hesitation on downshifts (unless I stepped down hard on the pedal) and a definitely noticable 'light thump' after 1-2 seconds at 50-52 mph (torque converter lockup?).
Oh yeah, no stored fault codes via stomp test.
 
Again, nothing unnerving - just aggravating. Trans fluid level good, color and fluid visual quality good. I cleaned the trans selector switch (it wasn't too bad), I had considered a full tranny flush (I've heard all of the banter on the board, pro and con); I had checked the intake system for air leaks (none), and I thought about changing out the oxygen sensors just to see if they were the cause of the lumpy idle... I know that we're all exceptionally sensitive to the daily behavior of our E32s; I attributed a lot of these 'issues' to the fact that it is a 14-year old car, and I forced myself to just enjoy it. It was tough at times; I knew that this car should run exquisitely, not just well.
BTW - I changed NOTHING between Monday evening and Tuesday morning, other than the 'reset'. Temp was nearly the same (maybe five degrees F cooler), clear, moderate humidity. Fuel level the same.
Back to the 1st drive, post-reset. After an immediate start, the idle seemed to be improved - just a bit. Still a lump or two... but it could be smoother - maybe? Peak-to-peak amplitude of the 'lumps' seemed to be reduced. Selected reverse, waited for the light clunk - none! Ok, this is different...
Released the brake, backed out of the garage. Is the throttle more progressive? Seems that the driveline is tighter; am I imagining this? Out into the street; drove my daughter to the high school, four miles down the road. Pulled onto a 4 lane, 50mph section of road and stepped down. Oh, man - what a difference - 1-2 shift was not perceptible, 2-3 shift was silent. 3-4 shift was... did it happen? I guess - the tach was at 1900, speed 52. What shifts?
I didn't feel any shifts!
I took it easy the rest of the way in to work - mostly city driving with an average speed of 40-45mph. Pulled into the garage at work, selected park, opened the door and stepped out with the engine running... or, was it?
Rock solid, smooth idle. No lumps, no bumps. The car downright SOUNDS different at all speeds, including idle! I shut it off and restarted. Instant start, rock solid idle. I mean ROCK SOLID - one of those is-it-running? idles. This car has NEVER done this before.
I'm amazed - but I'm also frustrated...
As a mechanical engineer working for 20 years in the software business, I appreciate the value of a well-earned reboot - but, is it possible that this simple action could have made this much of a difference in the car's behavior?
I understand that the Motronic ECU is adaptive - but, of course, not near as adaptive as today's OBC II+ technologies. What's more interesting is the transmission's behavior. I thought for sure that I was going to be hailing Kurt K soon - and now, my trans has miracuously healed itself (!) - it has never been this smooth in the two years I've owned this car.
Is the trans control unit also adaptive? Could this actually be real?
Am I still in bed, dreaming? I've had the battery disconnected a dozen times before, often for longer than an hour - but I never did the 'short' thing with the battery cables... Shogun, somebody's on to something - believe it or not!
Whatever. Try it. Could be the best 10 minutes you ever spent.
I'd love to hear from anyone who can concur as to the efficacy of this simple 'reset'.
-Mr. Smooth Idle!
Don Strimbu -
Bartlett, IL USA - BMWCCA #311395
1990 735i - 69,800 miles

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Opening and Cleaning G/B Program Selector Switch (S300):

This effective fix comes from Joe Kibokojoe, many thanks Joe.
PO managed to pour a coke into the autobox switch and so it quit working. After I saw the price for this little jewel I decided to crack her open and see if it was repairable.
Found out you can use the sharp tip of a knife and lift the switch right out of the console.
Using an exacto knife, slide the blade into the side of the case as shown in the pic.

Once the case is separated slide a small screwdriver in next to the exacto blade. Remove the exacto blade.

Slide the screwdriver back and forth over the edge until you can align the screwdriver over the rectangular hole. There are four of them. Gently pry down on the outside of the case and force the inside of the case out. Perform this procedure on both holes on one side and then turn the case over and do the other two. Just be gentle and patient and the inner case will slide out.

Once I had the two pieces separate I immediately labeled the automatic end with an "A". So I would accidentally assemble the switch wrong.
First I washed the upper portion of the switch with hot water for several minutes. Until I could actuate the switch back and forth with no sticking. I then sprayed the switch with CRC electrical contact cleaner. This stuff is good on plastic parts too.
Second I washed the lower portion of the switch with hot water and actuated the three white buttons while running hot water over them. This portion of the switch was full of goo and the buttons would not move up and down freely. Once the hot water flushed away the goo I let them dry and then sprayed the switch down with CRC.
Then I reassembled. Works great.

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Reinitialize the later model IR

Sit in the car, close driver's door, set ignition key (max. 5 seconds) in position 1 and then switch key again to 0 position.
Push on your remote key (not the switchblade, the later one), button 1 (the one farest from the actual key), then pusk button 2 (next one closer to the actual key) 3 times in a very short time within 10 seconds, BUT, at the same time do NOT release button 1 (keep it pushed). Then release button 1, the LED blinls slowly for 10 seconds.
Then move the sender (remote) close to the receiver (mirror), very close, but max. about 15 centimeters, then push one of the two buttons.
The door locking system signals the successful function of the initialisation by locking and immediate unlocking.
In case the 'blinking' or the locking-unlocking does not happen, repeat the procedure again.
If you have further remote senders for your car, they have to be initialized within 30 seconds (max. up to 4 senders per car). But when doing this, do not touch the steering wheel lock.

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