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Maybe problem, maybe not. (archive)

[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]

Posted by Paul P on August 01, 2001 at 10:09:35:

In Reply to: Drove a 540i today...did a weird thing posted by Ben 93 325is on July 31, 2001 at 22:53:35:

Which gear were u using? Drive (Overdrive Economy mode) or 4S (Sport mode). If you were in 4S this seems normal. As Patrick mentioned this is one of the useful features of Sport mode, holding a gear @ higher RPMs. Not only for overtaking but also for cornering, a shift when the car is close to the adhesion limit could easily upset its balance. Especially with ASC+T off, power on oversteer & such =D. Even in ED these transmissions feel firmer than most, but that symptom would indicate a potential problem.
As mentioned by others there was a software update that BMW instituted (inflicted) on the 540s that softened the shifts, as many customers complained that they were too jerky (posers).
BTW, did it shift in&out o reverse OK? That is the classic giveaway of tranny valve body problems.
One last thing to consider is mileage. To this day BMW (or at least my local stealer) insists the tranny fluid of the 540 is lifetime & lumped in my 530 no less. Bulls**t! A fluid that transfers 282bhp, indefinately?!?!?! If yer example is higher mileage & the fluid has never been flushed it may not be a good candidate.

94 530iT&A, Helga; Direct and firm despite slushbox.
92 Sentra SE-R, Teddy; The ultimate in adaptive trannys; 5-sp stick =P.

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