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#1
10-15-2010, 09:39 AM
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I reset the tranny programing and it seems to be a little better. Doesn't shudder as much or as bad as before. Maybe a programing issue, especially since some have had thier tranny replaced or rebuilt and the issue returned immediatley. I've always noticed if you give it more gas or let off the gas a little it stops immediatly, just as driving in sport/manual mode it doesn't do it at all. But still do not know what it it causing it..
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#2
10-20-2010, 04:34 AM
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Same issue with my 03 4.4i Sport too. More noticeable when engine is warm and with more weight in car. Have tried MAF cleaning and coolant flush but does not help. Only band-aid that works is putting it in Sport or go heavier on the pedal. Does anyone know which years the transmission software upgrade is available for and if it solves the problem?
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#3
10-20-2010, 07:57 AM
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My 2002 4.4 does EXACTLY what the op posted. I am going in today (for the third time) to get this resolved.
Here is my theory. ...... We all understand why wheels need balanced. And we all understand when they are not, they can get shakey, jerky, vibrate, (what ever yiu wanna call it) ONLY AT CERTIN SPEEDS. This is called "harmonic balance" the natural vibrations of an object spinning. NOW, our motors spin, and also have this same issue. At some rpm's our motor is very "harmonically balanced" and at other rpm's..... not so much. I believe that if the motor mounts were worn out, loose, ext... That this could give us this "shake" at a certin rpm. Two reasons. Those of use who have this issue... It's IDENTICAL to one another. PLUS have you notice that when this issue is happening, you can REV right past it? Typicly when a motor is running rough, and you add throttle, the motor struggles to "REV out of it". With this issue, I can REV out at any speed, slowly, quick or what ever. I will be with the Teck when my ride is up on the lift. This problem is over TODAY!!!!!!
__________________
  Pro motocrosser since 2005. First time BMW owner. 2002 4.4 E53
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#5
10-21-2010, 04:04 PM
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Quote:
The issue is line pressure is just a touch too low at that RPM/speed/gear. This is causing the hyd pressure on the clutch to insufficient and the clutchs are "kicking back". Teck told me a trany flush may fix this. Or a trany update may fix it but he stressed no guaranty. Othe possibility is the hyd valve block is scored and the valve body is hanging up causing what we feel. So to recap.... Could be fixed by a flush and a program upgrade total of $250. This is back up by issue instantly going away by switching into sport mode.
__________________
Pro motocrosser since 2005. First time BMW owner. 2002 4.4 E53
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#6
10-21-2010, 10:31 PM
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At post 17 by Jordo I was thinking exactly what he said at post 19 , pressure issues so Jordo here is some candy for you to get your teeth into , enjoy .
My visit at ZF Dortmund for Gearbox maintenance.(very, very long!) HUGH RESULT!! Servicing The e38 Automatic Transmission http://e38.org/transfund1.pdf Transmission issues cured by new voltage regulator/transmission cooler? Has Troublesshooting Last edited by amacman; 10-21-2010 at 10:41 PM.
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#7
10-22-2010, 12:22 AM
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Hi Guys,
I have the same exact problem with my trany I guess for the past 2 weeks after reading your responses and comments. I have 2000 X5 4.4 as original owner with little over 174,000 miles....and still clicking in full throttle... However, today it was enough and I took my baby to a local BMW dealer to check this trany problem before the weekend. First, after all diagnostics, I have been told by Tech, that I need my trany flush and that should take care the problem I am having, so I authorized the service.....but after all the work and testings, the same problem still remain without any changes ! At the end, Chief Tech came to me and he said that he needs to create a complete Service Claim file to send it to BMW North America for further investigation/assistance since this is their first case like this. I should hear from them within the week. If someone is trying something different, keep us posted and I will do the same. Good luck.
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#8
10-22-2010, 07:07 AM
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Quote:
You should check the links that show the 1000's of parts involved in a auto tranny in the post 2 above this one. I believe that any number of these parts could ware out and give us the symptoms that we feel. lol, what ever it is, it's the same part as we all have the exact same issue! I fear that we may be forced to do a rebulid as there are to many parts that "could" be it to guess, sugesst that it is one particular one.
__________________
Pro motocrosser since 2005. First time BMW owner. 2002 4.4 E53
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#9
10-22-2010, 07:01 AM
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Quote:
Great reading man! I only took about 15 mins to look over this (at work when I saw your post) I plan on sitting down and really going over this, and taking notes too. But I have a few quick questions. 1st) what is the call name to our X5 trannys? 2nd) if it's not the same name, are the componets the same? 3rd) what was shown with the dude who was in Germany is that sold complete, so I could just install the new "brain" as he called it and just throw mine away? Thank you for your input! You really go my gears turning! lol.
__________________
Pro motocrosser since 2005. First time BMW owner. 2002 4.4 E53
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#10
10-22-2010, 09:50 AM
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Quote:
__________________
e53 '00 4.4i Oxford Green II Freshly rebuilt tranny(2nd one) and transfer case/front shaft e70 '08 3.0si Sapphire Black cinnamon leather 7 seats e61 '06 530XI Sports Touring Silver - SOLD
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