Re: 1994 540i Auto Transmission Service and Fluid

[Henri Baccouche <henrib@xxxxxxxxx>]

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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