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Engine and Tranny software updates? 2003 4.6is
So I took my 4.6is to a good indy to get the DME and EGS updated. I stood next to him and the Autologic and watched all the key strokes. My car had never been updated before as evidenced by only 1 slot being used for both (each module allows 13 or 14 updates in its lifetime called "slots"). The engine was updated to a new version (very exciting!) but the tranny showed no available update. Is this possible after all these years? I was hoping to address the hard shift when stopping for 2nd to 1st. My X was built 06/24/03, just a month or two before the 4.8is N62 came out. Is it possible that maybe my tech's Autologic didn't have all the updates? Or maybe the tranny really is up to date from the factory. I had him reload the EGS software anyway but the file number was the same. I haven't driven enough to determine what has (or hasn't) changed. Any ideas? |
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#2
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2003 is when BMW had the some changes in the software. It's possible that your tranny software already has the most updated version when assembled at the factory.
I was able to update both on my E39 and E53, using SSSProgman V32.
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00 E39 DINAN S1 //M5 (82k miles) 06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html 90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq 01 360 Novitec Spider F1 (26k miles) |
#3
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Yeah, I think tmv is right. No updates. I updated mine and even changed the EGS module with a newer one thinking that it might have a firmware that would fix the hard downshift.
I monitored the transmission temperature and it happens only when it worms up. I also rebuilt mine including the valve body and also replacing the VB and the problem is still there. Talking to tranny shops I didn't get a clear answer. It seems to be a combination of clutches tolerance and VB housing/pistons wear. If the downshift you have is very hard you have a risk to damage the axels and drive shafts. This is what happened to me. Make sure your heat exchanger is not clogged. You can try to monitor the tranny temperature with inpa if you have access to it and go from there. Thats the cheapest start. I also added an oil cooler on mine and I have the engine running at 96C. If you don't have other transmission problems or don't want to get a reman transmission you can add a transmission oil cooler for $60 if the heat exchanger is ok and the hard downshift goes away. Just make sure you determine the conditions when the problem occurs.
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4.8is 2004 imola red 4.8is 2005 Black on Black - DINAN/2 sold 4.4 2004 X5 2003 330xi 2008 328xi - sold 4.4 2000 X5 - sold |
#4
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I noticed my 02 X5 harsh down shift only happens when driving for a while which mean the transmission temp would have gone up. Was thinking of adding a trans oil cooler as well but just thinking out loud, there should be one existed already right? The one that has engine coolant running around it? Also can you explain/guide of how your was done? Did you use a thermal stat as well that only open once oil temp reach a certain level? Thanks
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13.6 Street tire Gtst 11.6 Street tire R32 GTR |
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AFAIK, virtually every car with an automatic transmission has a cooler built into the radiator. What's a little different on the X5 is the thermostat gadget located down in front of the A/C compressor. If your tranny is running too hot, perhaps the transmission thermostat is bad and not allowing the tranny fluid to flow into the radiator?
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2014 BMW 328i Xdrive 2011 BMW 335i M-Sport 2008 BMW X5 4.8i Sport 2000 BMW 528i 5sp |
#6
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There is a heat exchanger thermostat in there which if defective can cause the overheating.
So in your case I would check that and the heat exchanger coolant side, don't unplug the tranny oil lines. There is a e39 link somewhere where a guy had the heat exchanger clogged and did a DIY. You can also bypass the heat exchanger and add an external cooler. There is a DIY very well done by civdiv.
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4.8is 2004 imola red 4.8is 2005 Black on Black - DINAN/2 sold 4.4 2004 X5 2003 330xi 2008 328xi - sold 4.4 2000 X5 - sold |
#7
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13.6 Street tire Gtst 11.6 Street tire R32 GTR |
#8
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Yes sir. Here you go!
Google search for e39 hard downshif heat exchanger returns: Automatic Transmission Heat Exchanger Cleaning/Regulator Replacement (540iT) - Bimmerforums - The Ultimate BMW Forum For civdiv external oil cooler google returns: http://www.xoutpost.com/bmw-sav-foru...on-cooler.html And if you want to control the engine temperature as civdiv here is the link: http://www.xoutpost.com/bmw-sav-foru...long-post.html
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4.8is 2004 imola red 4.8is 2005 Black on Black - DINAN/2 sold 4.4 2004 X5 2003 330xi 2008 328xi - sold 4.4 2000 X5 - sold |
#9
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Quote:
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13.6 Street tire Gtst 11.6 Street tire R32 GTR |
#10
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Quote:
The 4.6is tranny fluid doesn't flow through the radiator, it has a separate tranny cooler. Click on the link, it's the big rectangular shaped block, part #11, called a heat exchanger. RealOEM.com * BMW E53 X5 4.6is Oil-cooler pipe/heat exchanger
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2002 X5 4.6is 1999 C5 Corvette 1992 Mitsubishi 3000GT VR-4 1994 Kawasaki ZX-9R 2005 Mazda 6 Wagon (Wife's) 1991 Mitsubishi 3000GT VR-4 |
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4.6is, autologic, dme, egs, software |
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