No, got no where. The 1 BMW dealership (SMG) still insist that its caused by the catalytic converters missing. I know its something else causing it.
My aircon is also still faulty.
Three_thirty_I still has his Cats in.... He went to another BMW dealership yesterday, they said his flat spot could be ecu software related.
Mine isn't software related, I've tried aftermarket. Got latest (about Oct) oem software installed.
F20 M135i LCi