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  1. #1
    zahirbar
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    Automatic Gearbox Problem - Need advice Help

    Hi,

    I have a BMW Z3 1.9, in Automatic. Its a 1998 model.

    I have had the problem of the car gearbox clunking when it tries to drop a gear. This used to be intermittent and annoying, but at least the car changed gear. For 4 years (I've owned it for 5.5 years), it was under BMW warranty. They did inspect this problem which i raised on 2 occassions but because it was intermittent never found anything (despite charging me nicely).

    Now i have the problem that the car doesnt change gears properly. It'll go 2 one fine, even 2 is not to bad, but to 3 and 4 it doesnt change properly. I've found myself having to do 80mph whilst still in 3rd or possibly 4th.

    Today i found myself needing acceleration, putting my foot the floor (doing 80mph) and it would not change. My journey to work if sitting at 80mph means i'm on 5500rpm and i fuel just disappears at a very hungry rate.

    A couple of months ago, shooting through the black wall tunnel, the automatic fault light appeared and the car went in to limp mode. BMW checked it out (charged me again) and said nothing was wrong - first error. Since then its happened 2 times more.

    I've had various mechanics look at it. Recently had propshaft changed, doughnut changed, transmission fluid changed, headgasket resealed, and the problem still remains.

    I'm at a loss now. Tempted to go to BMW but their poor service (and im out of warranty) puts me off. I dont want to pay 300 to be told we dont know what the problem is.

    Does anyone have any recommendations? I'm in the Essex/London area and would like to have a specialist check it out and diagnose the fault with the goal of fixing it...

    Oh, i have noted on a few occassions that if i pull over on to the hard shoulder, stop the car for a bit and get going, it then changes properly. However this isnt the most practical way of doing things.

    It may be worth noting, that slipping the gearstick in to position 1, on the 1,2,3 bit, it wont stay, unless you physically hold in.

    Thanks

    Z


  2. #2
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    Extremely difficult to pinpoint, but I'd suggest>

    putting this same question up on other BMW forums incase someone does have direct experience.

    However, overall, it sounds like you've got a dodgy gearbox. My initial reaction is to point you to FAB Direct and get yourself a 'new used' gearbox out of a dismantled car.

    Other things to consider, maybe take it to one of those places that can check the electronic control unit, seeing as it's intermittent, it could be a software issue? even more mundane it could be a resistor or some part of a circuit has been damaged/melted/snapped off or something causing this 'sometimes' ok sometimes 'not ok' scenario. It could be even more mundane that the gearbox needs a service and cogs, oil, bearings etc etc changed.

    I have a 03 530d touring auto, and have noticed on cold start, selecting reverse and then D takes quite a long time - 2-3 seconds, but once warmed up is absolutley fine (probably just needs oil topup) as it's a high miler 160K now, if/when it does give up, I'm just going to bung in a used gearbox from FAB Direct.

    This UK board is quite slow in terms of activity, other UK based forums are quicker, however I suggest you post this on the Z3 specific board to increase your chances of a response!

    Cheers! Dennis! West London UK!

  3. #3
    larryadelowo
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    Re: Automatic Gearbox Problem - Need advice Help

    hi

    l have a cheyve blazer 1995 s10 model automatic drive
    but now it does not enter into the reverse gear please what is wrong and what part in the transmision do l have to change thanks

  4. #4
    kaz ikram
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    Re: Automatic Gearbox Problem - Need advice Help

    HI

    I have the exact same problem with my z3 1.9 1998 model with the auto box.

    Did you ever get to the bottom of the problem?


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