Re: 1994 540i Auto Transmission Service and Fluid

[Vincent Poy <vince@xxxxxxxxxxxxxxxxxx>]

	You raise a very important point which is where my friend is
concerned since he wants to try changing the fluid to see if it will solve
his problem of the reverse not working until 2 seconds later.  He said
before that happened, some transmission reprogramming light came on in the
car but when he shut off the car and then turned it back on, the light
went off.  I never knew the transmission can be programmed unless the
firmware or software on the computer is messed up.


Cheers,
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On Tue, 20 Aug 2002, Henri Baccouche wrote:

> You missed my point.......Changing the fluid may not help.
>
> This model ZF5HP30 5 speed  computer controlled trans.........seems  to break
> at 80-100K miles from what I have seen. The question is : is the failure caused
> by the "lifetime" fluid or the is it a hardware failure ? In the same space
> that was originally a  3 speed auto trans , they made a 4 speed auto trans and
> then they made a  5 speed auto in the same space .....So things got smaller and
> Engine torque inputs keep going up......
>
> What I am suggesting is that it may be more of a hardware failure than a
> "lifetime" fluid  issue.
> The fluid may not be the problem........
>
> The transmission rebuilders are not recommending that you change the "lifetime"
> fluid on this trans.....
> either....... :
>
> http://www.peterschmid.com/zfinstallation.htm
>
> Henri
>
>
>
>
>
>
>
> >
> > >>> Second : I have been monitoring this issue, since the "lifetime  fluid"
> > >>> craze began , and I think it's not worth it. The manufacturer doesn't
> > >>> recommend this service as a regular thing.
> > To Henri-- Replace fluid for <$300 or replace the tranny for    $6000, OF
> > COURSE ITS WORTH IT!  But you know where I stand on this issue.
> --
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