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2002 BMW 325i

Question: Transmission slips in 4th gear.

Question

Rebecca Evans, Fort Wayne, IN, November 02, 2010, 10:05
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 Rookie

My transmission was 3 quarts low in fluid. The auto service guys added trans fluid and they ran tests and said that 4th gear is slipping (I think the code was 040). He said I need a refurbished transmission, it will cost 24-3800 dollars. I was wondering if it could just be the computer. Sometimes my transmission light comes on and if I stop and turn off my car and wait for about 30 seconds or so, the light goes off. I notice when I drive I have to let up on the gas so it can shift into 4th gear, not all the time though. Just wondering what you all think about this and what suggestions you have for me. Thank you for your help.
Rebecca

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  • Answer #1

    ZeeTech November 02, 2010, 19:04
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    Rebecca,
    Did they changed the entire fluid and the filter? Did you experienced a delayed engagement when you moved the shift selector?
    Are you sure about the 040 code? Isn't it 048?
    The 048 code is pretty common on these cars. It's caused by a defective seal inside the torque converter. In this case only the torque converter has to be replaced.
    The other common problem is the valve body, but they usually sets 05x codes, but in this case too, only the valve body needs to be replaced.
    It would be good to know the DTC for sure, but I'd get an ATF and filter replacement first, (correct ATF is extremely important!) reset the adaptation and see what will happen.

    Zee

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