| Message: | | Edjack is dead correct. In all transmissions, one of the very clear signs that an ATF change procedure was not followed to the exact T (specs) is the infamous 'whirring' sound. That usually means it was not filled up to the correct level, and you are probably low 1/2 to 1 1/2 qts of fluid in the tranny. And if you didn't do the tranny drain/refill procedure yourself (and thus ensuring everything was followed exactly in terms of transmission operating fill temperature, filter chage, filter gasket change, etc), then I'd be doubly wary, especially if it was a dealer. Dealers over here in Europe outside of Germany are notorious for under-filling transmissions because: a) they never like to do them and just want you to buy a new or rebuilt tranny, and/or b) when a customer does ask or force them to do a tranmission fluid change, the BMW garage assigns a young apprentice to do it and/or someone who is not intimately close to what exactly needs to be done. So either doing it yourself, especially so on a high mileage car, or having a trusted BMW indie do it, is the route to go.
My advice is to get the car raised dead level (raised up at all four corners to the exact same height), get the tranny up to correct operating temp, and pump another 1/2 to 1 liter in, then go drive and let it sit overnight and see if the whirring has lessened or dissipated the next morning upon a cold start. If so, you've found the problem. If not, you've also maybe too found the problem (as Edjack says, the tranny may be in the throes of death at your car mileage).
Eurodavid
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