Paging kurt koeller or Keller

[Noah]

It is very well known that you are the guy to talk to with regards to
BMW automatic gearboxes
I hope you can help me

I own an E38 from 95
And I have a problem; I fear that my transmission needs an overhaul
Symptom:
Driving on the freeway around 55mph/90kmh at 1200 to 1400 rpm I get a rumble
This rumble at first was very low in volume but now it scares my kids
And it only comes when I have specific power setting and by letting up or by pressing the gas pedal the rumble disperse or even shifting into 4 gear
One more thing
I feel that I lose a bit of power when this happens
and I don't get this problem until the car gets to normal working temperature
But this can maybe be explained by the gearbox shifting at higher RPM’s when the engine is cold


If I floor it runs great it dose not seem to slip and shift smooth as silk
I feel if I have a higher RPM it dose not rumble
if I just stay in "S" mode I never hear any rumble

I hope you will be able to help me
Thanks frow Sweden
Noah Brown

[Bimmer Boyz]

rumble... rumble... grind..............

bummer!

My old 318 did that.

Sold it and a month later I saw it on the side of the road. Better him then me.

540 Sport is doing fine for me.