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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series / 8 Series > 7 Series - E38 (1995 - 2001)

7 Series - E38 (1995 - 2001)

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  #1  
Old 02-16-2013, 04:00 AM
najee100 najee100 is offline
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Location: new york
 
Join Date: Nov 2012
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Mein Auto: bmw 740il 2001
Unhappy bmw e38 2001 740il

transmission slipping computer reads transmission program fluid. what should i do?? do i need to rebuild the transmission and whats the general cost to fix???
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  #2  
Old 02-16-2013, 05:31 AM
Kevin Halbleib Kevin Halbleib is offline
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I just ordered a trans from a salvage yard. Paid 850 and then paid a bmw shop to install it. Another 800.

Drives like a charm now.
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  #3  
Old 02-17-2013, 08:29 AM
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BigBoy740il BigBoy740il is online now
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Location: Arizona
 
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Mein Auto: 1989/1991 E30; 2000 E38
Have you done this simple DIY task - Check the transmission fluid level? This would be my first step. It it doesnt work, your loss is only $20-40 bucks. After that you can plunge into a rebuild or salvage yard replacement.
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  #4  
Old 02-17-2013, 01:54 PM
First740i First740i is offline
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Your fluid level is low.
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  #5  
Old 02-17-2013, 04:20 PM
chrisn7 chrisn7 is offline
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+1 fluid level. Sounds easy but you may not know what the existing fluid is, and you really don't want to go mixing that with a different top up. Best solution would be to drain and replace fluid and filter, but only if you know what you are doing, as there is a very specific fill procedure which must be followed.
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  #6  
Old 02-17-2013, 08:22 PM
Kevin Halbleib Kevin Halbleib is offline
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already installed a new used one. Out some dough, but works perfect.
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  #7  
Old 02-18-2013, 12:48 PM
chrisn7 chrisn7 is offline
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Probably little wrong with the old one...
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  #8  
Old 02-18-2013, 01:01 PM
Kevin Halbleib Kevin Halbleib is offline
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At this point, who knows. I took it to 3 places and all said not to wast the money changing the filter and fluid that is was slipping to bad.
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  #9  
Old 02-18-2013, 05:37 PM
umewes umewes is offline
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Mein Auto: 2001 740i
Get a scanner. The OBD2 reads ATF temperature. Temperature correlates with fluid level. Below 50 C / 120 F is OK. Make sure to take your time to warm up every thing prior to testing. Switch ON AC to increase engine idle speed. Apply footbrake firmly and move gear shift selector through all gear positions, pausing in each briefly. This is from the repair manual. Good luck.
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  #10  
Old 02-23-2013, 04:17 AM
BMW 3-SERIES BMW 3-SERIES is offline
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Mein Auto: 2000 540i Sport (E39)
Best bet is to go used. Having it rebuilt is almost out of the question. I used to be scared of used transmissions.. but 90% of them come with some sort of warranty. If you buy a transmission with low miles, install it, change 5-6 quarts of fluid NOT all, and you set. A rebuild will set you back $ 2,400.00 for a complete rebuild. Since its already slipping, adding or replacing the fluid might not be the best choice since the clutch packs are probably worn already. Used.
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