mluton

Stolen from another forum. A member has just changed a setting using his VAG COM to correct the 10% difference in True MPG and displayed MPG.

Not sure what cars this will work on though.

VAG COM Change
17 - Instruments - Adaption-10 - Ch No. 3 - Original value 100 (this is a %) my new value is 110. Use TEST and see Average MPG drop in DIS!

Thread here:
A how-to with some VAG-COM modules - VWAUDI Forum

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ethos

I'd rather it lied to me I think

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DGW

That channel (ie 03) is not available on the 2007 Fabia vRS. This is a pity since on my car's first brim to brim tankful Trip 2 shows 54.0 mpg compared with my calculated figure of 43.57 mpg based on miles driven and fuel used.

But I did take the opportunity to use VAG-COM to increase power steering weight from 2 to 3 - and what a difference that makes.

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Denis

2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg
2007 Fabia vRS - CC, ESP and full leather trim by Seat Surgeons ...48.12mpg...

smstext

is this for all maxidots or just octys?

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roo

It would be for all Octys that shows mpg on the display.

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Wardy

Yeah, remember seeing this on TDIClub IIRC. Referred to as the 'fudge' factor

Steve

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Uwe@Ross-Tech

Some instrument clusters support this, and some don't.

54 show vs 43.5 actual is a 24% difference. Normally the maximum allowable tweak is 15%.

DGW: What's done to your car? Remap? Different FPR? Different fuel injectors? Being off 23% is a LOT.

-Uwe-

DGW

The engine is unmodified, Uwe. After 680 miles Trip 2 reads 56.3 mpg whereas calculated (actual) mpg is 46.44. I will continue logging fuel and mileage to see if mpg changes for the better.

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Denis

2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg
2007 Fabia vRS - CC, ESP and full leather trim by Seat Surgeons ...48.12mpg...

Uwe@Ross-Tech

Still 21% off. How about a really kudgy solution: Set your car up to believe it's a US market car. Our gallons are about 20% smaller than yours. ;-)

Seriously though, ~45 imperial mpg seems awfully low for a Fabia with a TDI motor -- unless of course you have a serious case of lead-foot.

-Uwe-

'Little' John

It depends on the sort of driving you are doing. It's about what I get doing my 8 mile commute to work. On a long run it's usually a bit better. My trip computer also normally reads about 10mpg too high!

skudmissile

If i get 45mpg average i am doing well.

My average atm is 35mpg The Car needs mapping for the hybrid.

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octywagon

Just tried to do this on my 2001 octy tdi and can't do it as there is no channel 3 to modify - oh well - was looking forward to correcting my display as it is also 10% out.

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sibart

Octy mk2 seems to be spot on, i do same route everyday and have done real life calculations, maxidot was within 0.1 mpg.

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