2001 740IL Transmission Slip - Bimmerfest - BMW Forums



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7 Series - E38 (1995 - 2001)

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  #1  
Old 03-20-2017, 01:58 PM
captnfrisbee captnfrisbee is offline
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Location: lynchburg
 
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2001 740IL Transmission Slip

Everything running flawless on long day trip 300 miles. Next day car does great for 1/2 day Transmission started slipping on takeoff. Runs great in drive. Speeds up to highway speed no problem. Acts like it is stuck in Drive. No Passing gear if I stick my foot in it at 45/50 mph
Pulls away from dead stop like a straight drive in 3rd gear. very slow. Once up to speed she runs fine
No Fail safe warning or other error lights show up at any time.
Transmission has 240K. Engine swapped out at 200K
Any ideas Thanks
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  #2  
Old 03-20-2017, 05:38 PM
Alika808 Alika808 is offline
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Location: USA
 
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Mein Auto: X5
Check the transmission fluid level. Have you replaced the fluid already, if not then I think it's time to do it. While the pan is open, you may ohms check the solenoids.
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Old 03-31-2017, 06:01 PM
BMWlust BMWlust is offline
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Location: Leduc, Alberta
 
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Mein Auto: 2001 740iL
If you aren't getting a Trans Failsafe code, then I would bet dirty and low oil. Mine did the exact same thing when I bought it. Pulled the pan, and filter was black, oil was 3 litres low and black as well. Easy, simple fix. However, don't completely flush it out, as some dirty oil particulate will actually aid the transmission...sounds stupid, but that's what the pros tell me. If the code pops up, then you can get the solenoids scanned and they're all replaceable off eBay individually.
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