My BMW X3 has high fuel consumption...
My 2006 BMW X3 is using more fuel than it should; what do I need to replace in order to stop that?
It could be down to a number of factors, but excessive fuel consumption can usually be traced to a few specific areas:
Are the tyre pressures correct all round? Tyres that are under pressure can seriously increase your fuel consumption.
Are you using a roof rack or roof box, or are you constantly carrying around heavy loads in the boot?
Has the engine been serviced recently?
Finally, there’s your own driving style, which is often the bigger contributing factor to fuel consumption. If you’re trying to save fuel, try accelerating a little more gently, anticipating the traffic flow a little further ahead, backing off earlier and not idling the engine when standing still for long periods.Neil Briscoe - Complete Car Advisor