DmC, it really quite hard to guage your fuel consumption without knowing
what is the distance that you have travelled for a full tank.
Secondly, I don't think AFM will affect fuel consumption much. If I am not mistaken
it affect your idling speed due to too rich in oxygen in the petrol and air mixture when
the vane of the AFM is struck.
A lack of power is more likely one of the sympthom of high fuel consumption.
This could be due to a simple problem of spark plugs fouling.
As mentioned by you, you seldom used your car when you are outstation.
Do you removed the battery terminals when you are not using the car.
If I am not mistaken, the AFM will reset the optimum driving curve if the
power is disconnected to the AFM. maybe, you should tekan a bit and let the
AFM to adjust and also burn up all the unburnt carbon deposited on the
engine block.
You can find a list of workshop where the forummer goes. Will post the link later.
OK here is the link. Click below...
http://www.bmwclubmalaysia.com/forums/showthread.php?t=440
