Correcting your MPG display via VAG COM

mluton · 25-02-2008, 19:14

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

ethos · 26-02-2008, 09:52

I'd rather it lied to me I think

***DGW*** · 26-02-2008, 13:28

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.

smstext · 26-02-2008, 18:30

is this for all maxidots or just octys?

roo · 26-02-2008, 18:35

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

Wardy · 26-02-2008, 18:44

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

Steve

Uwe@Ross-Tech · 27-02-2008, 02:50

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*** · 08-03-2008, 17:08

Quote:

Originally Posted by Uwe@Ross-Tech

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

-Uwe-

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.

Uwe@Ross-Tech · 08-03-2008, 22:44

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 · 25-03-2008, 14:09

Quote:

Originally Posted by Uwe@Ross-Tech

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-

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 · 25-03-2008, 14:35

Quote:

Originally Posted by Uwe@Ross-Tech

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-

If i get 45mpg average i am doing well.

My average atm is 35mpg

The Car needs mapping for the hybrid.

octywagon · 09-04-2008, 19:42

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.

sibart · 13-04-2008, 15:55

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

25-02-2008, 19:14	#1
mluton I have VAG COM Join Date: Jul 2006 Location: South Birmingham Posts: 6,216 Thanks: 45 Thanked 208 Times in 183 Posts	Correcting your MPG display via VAG COM 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 __________________ Support Briskoda----------------------> Red Skoda Octavia V//RS Mods to date: Carbonio CAI Forge 007 DV Aero Wipers Briskoda Stickers KVW100 GB Wheel Inserts RS Tuning Remap Delocked Piper Cat Back Kenwood KDC-W6541U Fli Twin 12" Active Sub Parrot CK3100 *------------------------------------------------*

26-02-2008, 09:52	#2
ethos Briskodian Join Date: Jun 2007 Location: Cornwall Posts: 1,211 Thanks: 64 Thanked 36 Times in 32 Posts	Re: Correcting your MPG display via VAG COM I'd rather it lied to me I think __________________ Octy vRS mk1; APR Stage 1, Forge 007p DV, THS TIP, Honda s2000 aerial, seat cupra front splitter, MAS alloy center caps, alpine CDE-9871R, infinity 6010cs, Jbl 75.4 and 10" sub. Pug 205 gti; mi16 200bhp/tonne

26-02-2008, 13:28	#3
*DGW* BRISKODA Staff Join Date: Oct 2002 Location: Cambridgeshire Posts: 17,038 Thanks: 45 Thanked 153 Times in 115 Posts	Re: Correcting your MPG display via VAG COM 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. __________________ Denis 2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg 2007 Fabia vRS - CC, ESP, Jabba rear ARB, and full leather trim by Seat Surgeons ...48.01 mpg...

26-02-2008, 18:30	#4
smstext 2.0 FSI Sport. Join Date: May 2007 Location: oxon Posts: 7,239 Thanks: 8 Thanked 198 Times in 181 Posts	Re: Correcting your MPG display via VAG COM is this for all maxidots or just octys? __________________ OXON Meet 5 October 2008 click here for more info

26-02-2008, 18:44	#6
Wardy Smokey Join Date: Oct 2004 Location: Around Manchester & Cheshire Posts: 10,656 Thanks: 376 Thanked 262 Times in 251 Posts	Re: Correcting your MPG display via VAG COM Yeah, remember seeing this on TDIClub IIRC. Referred to as the 'fudge' factor Steve __________________ Wardy's Fabia vRS xenons : sunroof : cruise : OEM+ "Racing is life. Anything before or after is just waiting." - Steve McQueen

27-02-2008, 02:50	#7
Uwe@Ross-Tech Briskodian Join Date: Apr 2006 Posts: 114 Thanks: 0 Thanked 5 Times in 4 Posts	Re: Correcting your MPG display via VAG COM 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-

08-03-2008, 22:44	#9
Uwe@Ross-Tech Briskodian Join Date: Apr 2006 Posts: 114 Thanks: 0 Thanked 5 Times in 4 Posts	Re: Correcting your MPG display via VAG COM 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-

09-04-2008, 19:42	#12
octywagon Briskodian Join Date: Jul 2005 Location: west midlands uk Posts: 94 Thanks: 3 Thanked 1 Time in 1 Post	Re: Correcting your MPG display via VAG COM 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. __________________ Eucalyptus 01 Octy Elegance TDI Wagon ~ ~ Honda 'stubby' aerial ~ Aero rear wiper

13-04-2008, 15:55	#13
sibart K04 Equipped Join Date: Sep 2007 Location: gloucestershire Posts: 210 Thanks: 19 Thanked 6 Times in 6 Posts	Re: Correcting your MPG display via VAG COM Octy mk2 seems to be spot on, i do same route everyday and have done real life calculations, maxidot was within 0.1 mpg. __________________ Car: Factory freebies, JKM Performance K04 Turbo Upgrade, JKM Performance BIG Brake Upgrade, Koni / Eibach Suspension, Eibach ARB's, Revo Map, KMD fuel pump, Columbus toy+ BT Kit(cheers Stu) ,light assist, maxidot,rear park sensors,cruise control.

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