Discussion
Hi guys, no matter how I drive my M5 I cannot achieve higher than 12.7 mpg.
Most of my driving is on B roads and having heard other owners achieving 19 mpg I'm starting
to wonder whether there is something wrong with my car!?
Anyone else have similar returns even when when not pushing hard?
Most of my driving is on B roads and having heard other owners achieving 19 mpg I'm starting
to wonder whether there is something wrong with my car!?
Anyone else have similar returns even when when not pushing hard?
Schermerhorn said:
While driving press the BC button on the mpg read out for 2 seconds. You will get your mpg read out. On a long journey you should see 20 mpg. Only stop start driving sees it hitting sub teens.
I did 150miles on £50 and could have done another 30 miles if i didnt do the town driving for large parts. Not bad for 38 litres of unleaded.
The reading is 12.7 and that's the highest I ever recall it. Considering only 20% of my driving is in town this doesn't quite add up.I did 150miles on £50 and could have done another 30 miles if i didnt do the town driving for large parts. Not bad for 38 litres of unleaded.
I've reset the calculator so I'll see if this makes any difference. I'd struggle to achieve 100 miles on just £50!
What could cause the car to burn more fuel then it should?
Just to update:
The setting is on miles per gallon, I've checked through the idrive menu.
I've reset the calculator it's still showing a similar read out in the mid 12s.
When I drive it in town the read out falls to mid 11s, when I combine with b road driving it goes up to mid to high 12s.
These results have been achieved on p400 mode and the car hasn't been revved over 4500 rpm and is driven in automatic.
The setting is on miles per gallon, I've checked through the idrive menu.
I've reset the calculator it's still showing a similar read out in the mid 12s.
When I drive it in town the read out falls to mid 11s, when I combine with b road driving it goes up to mid to high 12s.
These results have been achieved on p400 mode and the car hasn't been revved over 4500 rpm and is driven in automatic.
Schermerhorn said:
m5touringv10 said:
Just to update:
The setting is on miles per gallon, I've checked through the idrive menu.
I've reset the calculator it's still showing a similar read out in the mid 12s.
When I drive it in town the read out falls to mid 11s, when I combine with b road driving it goes up to mid to high 12s.
These results have been achieved on p400 mode and the car hasn't been revved over 4500 rpm and is driven in automatic.
There is the problem. Car is driven in automatic. P400 or P500 wont make a difference. The setting is on miles per gallon, I've checked through the idrive menu.
I've reset the calculator it's still showing a similar read out in the mid 12s.
When I drive it in town the read out falls to mid 11s, when I combine with b road driving it goes up to mid to high 12s.
These results have been achieved on p400 mode and the car hasn't been revved over 4500 rpm and is driven in automatic.
While driving on a long stretch of road say at 40-50mph where you know you wont stop or brake press the BC button. It should read at least 18mpg immediately.
I think your location has alot to do with it too. Town driving will not see it move out of low teens. A roads will see 20mpg. Motor way driving will see 15mpg.
Automode is cr*p too. Press power...manual and S5 and change up at 2000rpm.
when I press BC whilst driving 40 mph on B roads it gives me a reading in the mid 12s.
Shaoxter said:
m5touringv10 said:
These results have been achieved on p400 mode and the car hasn't been revved over 4500 rpm and is driven in automatic.
Forget about your mpg problem, you're driving the car all wrong 
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