Speedometer
AudiWorld Member
Joined: Jul 2011
Posts: 545
Likes: 4
From: Canada
All German cars I owned in the past are like that. They purposely set the speedometer 2 to 3 miles higher so you are always under posted speed limit if you drive at the limit. In my old Merc I can press a few buttons on and it can show the real speed and a whole bunch of other technical info on HVAC display.
AudiWorld Senior Member
Joined: Nov 2012
Posts: 1,105
Likes: 7
From: Edmonton, AB
Tangential question: Has anyone been able to use VAG-COM to enable GPS-derived speed in the Nav screen? Even the cheaperst Garmin has this capability and it would be a useful option for us optimistic German types.
AudiWorld Member
Joined: Sep 2004
Posts: 257
Likes: 0
From: Family and Photography
I also noticed that my speedometer reads around 2-3 MPH below what my Waze App is reporting...probably better this way versus under reporting the speed. However, more annoying is the MPG errors...my '02 A6 was always off by at least 2 MPG and after my first reading on my new '13 A6 it came in again at 2 MPG over the actual.
The good part though is that I attained 25.8 MPG...better than I ever got on my prior Audi over 10 years...there have been times where it is shown on the "Short-Term" getting 34 MPG over a trip.
The good part though is that I attained 25.8 MPG...better than I ever got on my prior Audi over 10 years...there have been times where it is shown on the "Short-Term" getting 34 MPG over a trip.
Super Moderator
Joined: Jul 2001
Posts: 13,980
Likes: 124
From: SE Massachusetts, U.S.
I also noticed that my speedometer reads around 2-3 MPH below what my Waze App is reporting...probably better this way versus under reporting the speed. However, more annoying is the MPG errors...my '02 A6 was always off by at least 2 MPG and after my first reading on my new '13 A6 it came in again at 2 MPG over the actual.
The good part though is that I attained 25.8 MPG...better than I ever got on my prior Audi over 10 years...there have been times where it is shown on the "Short-Term" getting 34 MPG over a trip.
The good part though is that I attained 25.8 MPG...better than I ever got on my prior Audi over 10 years...there have been times where it is shown on the "Short-Term" getting 34 MPG over a trip.
Correct Consumption in DIS program
[17 - Instruments] [Adaptation - 10]
Look about 20 items down on the drop-down list for "Correct Consumption" and select it
Change 100 to xxx
Example - if your DIS is consistently off by 7% to your actual calculated mpg:
You RAISE the number to the percentage if DIS is OVER reporting mpg (i.e. 107)
You LOWER the number to the percentage if DIS is UNDER reporting mpg (i.e. 93)
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Super Moderator
Joined: Jul 2001
Posts: 13,980
Likes: 124
From: SE Massachusetts, U.S.
I've not seen any, probably because there's no MMI software code to support the feature.
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AudiWorld Senior Member
Joined: Aug 2006
Posts: 885
Likes: 0
From: Melbourne, Victoria, Australia
Speedos reading over actual speed is a design rules thing.
In most countries speedos are allowed to have an error of 10% bit must not read under the stated speed.
Most manufacturers err on the side of caution and have to them read slightly over.
Also saves on any litigation issues ("but my speedo said I was doing 55 officer"!!).
Both my Audi's are a damn site more accurate than any of my GMH products in the past - 1-2% under vs 8% under - no wonder I'm always overtaking Falcons and Commodores on the freeway...
Excerpt from Australian Design Rules:
edit: bold = corrections of tense
In most countries speedos are allowed to have an error of 10% bit must not read under the stated speed.
Most manufacturers err on the side of caution and have to them read slightly over.
Also saves on any litigation issues ("but my speedo said I was doing 55 officer"!!).
Both my Audi's are a damn site more accurate than any of my GMH products in the past - 1-2% under vs 8% under - no wonder I'm always overtaking Falcons and Commodores on the freeway...
Excerpt from Australian Design Rules:
The speed indicated shall not be less than the true speed of the vehicle. At the test speeds specified in paragraph*5.2.5. above, there shall be the following relationship between the speed displayed (V1 ) and the true speed (V2).
0 =< (V1 - V2) =< 0.1 V2 + 4 km/h
That's actually 10% + 4km/h, which is even further out (14% at 100km/h)0 =< (V1 - V2) =< 0.1 V2 + 4 km/h
edit: bold = corrections of tense
Last edited by twentysevenlitres; May 26, 2014 at 03:03 PM.
AudiWorld Member
Joined: Dec 2013
Posts: 308
Likes: 1
I think you may be reversing Speed reading with Odometer reading. Odometers are not permitted to read high. That is--they cannot indicate you have traveled 105miles when you only went 100 (that would reduce your warrantee for one thing). But the Speedometer reads a few mph higher than you are actually going. When I read 75mph, my GPS says I'm only doing 72. That keeps you from unintentionally speeding.