I had this problem with the E65 730d ((07). It felt like it was hesitant at
pulling away from a rolling entry to a roundabout or exiting a junction - almost
like the turbo wasn't spinning up (turbo lag) or a gigantic flat spot.
Now I realise that your is the V8 petrol but if the symptoms are similar get
down to your BMW dealer and speak to their BEST technical guy and I mean TALK to
him not relay messages via the service desk guy.
I do not know exactly what they did to mine but they took it away for about 90
mins and did something to either the G/box ecu or the engine ecu or maybe both!
However, it now pulls like a train and will actually hit 155+ on the clock
whereas before it would only show 145. Acceleration if similar to my old 440 V8
Dodge Charger with 400Hp. (1970)
Another of my theories was that it wasn't dropping into first gear on stopping -
remember the ecu remembers your driving style and will adapt to it. The guy
that had it before you could have been a lazy chauffeur and in London all day!
My car now always drops into first and no flat spots or stalls on acceleration.
One negative is that I have lost about 2 mpg but with 600 miles to a tank of
diesel who cares? My older E38 V8 only did around 300 per tank.....
BTW where are you?
Sir Hugh of Bognor
The difference between men and boys is the price of their toys.
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