Software upgrade causing high fuel consumption?
Posted: Wed Oct 26, 2016 8:50 am
Hi all,
3 weeks ago my 2007 X5 (3.0L Diesel) went into an official dealer (Vines of Guildford) for a software upgrade.
Since the upgrade I seem to be experiencing much higher diesel consumption. It's literally drinking the stuff!
On board computer shows that consumption is down from an average of 25mpg to just 20mpg - and the journeys are the same.
Any ideas if the upgrade could have caused it (does it remap the engine?) or how improve consumption again?
Best
UF
3 weeks ago my 2007 X5 (3.0L Diesel) went into an official dealer (Vines of Guildford) for a software upgrade.
Since the upgrade I seem to be experiencing much higher diesel consumption. It's literally drinking the stuff!
On board computer shows that consumption is down from an average of 25mpg to just 20mpg - and the journeys are the same.
Any ideas if the upgrade could have caused it (does it remap the engine?) or how improve consumption again?
Best
UF