Hi X5Sport (Richard), The car went in to the garage yesterday to be fixed. They said that the problem was: When the vehicle sees a throttle input from the driver, an activation signal is received by the throttle actuator which in turn moves the operating linkage between the actuator and the turbo ...

Thank you very much Richard. I'll see if the dealer will try again to identify the fault

I have a Feb 2008 X3 2.0D Msport auto. On several occasions I've experienced loss of power and rough engine noise and eventually the DDE warning light comes on and stays on. I then switch off the engine for about 5 minutes and restart. It then runs smoothly and the DDE light has gone out. I have ...