miles per tank part 2

[bazza]

I posted a message on here about a month ago, about how many miles people get to a full tank of fuel.

Most people said they get about 200 - 220 miles per tank around town.

This last week i have been doing short journeys around town and i only got 163.9 miles to a tank and 15.8 mpg . I havent got a heavy foot and i was driving quite sensible [img]images/graemlins/smirk.gif[/img].

This sureley cant be right ???
Could there be a sensor fault (e.g. MAF)????

If any one could point me in the right direction it would be very much appreiciated.

The car is slowly bleading me dry [img]images/graemlins/frown.gif[/img]

[wazza]

need to get hooked up to a vag-com, then poss a RR session to check figures. [img]images/graemlins/thumb.gif[/img]

[Carps]

I reckon there is definitely something wrong there. Even with a few 'exciting' commutes I got at least 220 miles on a tank. Dirving sensibly get 300 miles. On a run (Cornwall) I have had 350.
Definitely need to get hooked up to some diagnostics, although with fuel consumption like that at least you aren't lean [img]images/graemlins/wink.gif[/img]

[fade2grey]

MAF or not warming up fully? I get around 24mpg with a heavy foot & get ~ 400 miles on a tank for cruising/80mph.

A

[bazza]

if its a MAF, how much are they, and do audi do it under warrenty??
thanks for the replys guys

[wazza]

about £230 inc vat

[Nige_RS4]

Bazza, apart from poor fuel consumption, do you notice anything wrong with the cars performance i.e. power tails off above 4500rpm, turbo lag in high gears, intermittent high/low boost ?

Difficult to diagnose remotely, but I suggest you get it checked out by someone who knows this car and not just replace components willy-nilly.

BTW, when I first got mine, I was getting <18mpg. 2 BPV's and a MAF later I'm getting 22.5mpg on the DIS and averaging 250miles on a tank.

Nige [img]images/graemlins/thumbs.gif[/img]

[bazza]

The car does tail off at around 4500- 4800rpm but i thought that was normal.
Also when its cold it feels a bit jumpy, but when the engine warms up it seems to be ok

[Joshie]

Deffo something wrong mate - I was getting better than that from a modified (400HP) S4.

Have it checked out be someone who knows what they're doing.

[jeffw]

I get 28 mpg on a run and 23-24 around town on the DIS with my 400 BHP S4....agree with Joshie regarding something wrong !

[rwoodward]

mmm i doubt its ya MAF. when mine went the power was down but the economy _increased_ i was gettin around 27-29mpg! I could easily get around 23mpg, or about 270miles on a tank, driving enthusiatically.

BTW anyone else normally pull away in 2nd? or am i just mad...

[jeffw]

Mad....

[fade2grey]

aye.. 2nd gear starts.. saves the hassle of changing gears (no Tanoga here) then a nice long drag to the red line [img]images/graemlins/smile.gif[/img]

Umm coolant temp sensor? ie running rich? either way a vag-com or dealer will show any logged errors.

A

[bazza]

Thanks for all the input guys.
I think its time for a trip to the dealer [img]images/graemlins/frown.gif[/img]

[Dippy]

I've been trying really hard to get a respectable mpg recently. [img]images/graemlins/grin.gif[/img]

Best I could get it down to was about 22mpg!

Seems to be more efficient since it was serviced by AmD.