2013 A4 Quattro with 17" tires. I'm sure my speed indicator is overly optimistic. My estimate is the speed it indicates is 10%+ higher than the actual speed I'm going to. I haven't tested it yet but planning on doing so next weekend. Has anybody ever noticed this and tested the accuracy of the speed indicator?

 

Normal - Audi speedos are factory set to read 5-10% higher than actual.

Both my B6 & B7 behave this way.

You can confirm using an external GPS; probably saves them from a host of lawsuits and other customer complaints.

 

I would tend to agree, I always thought my speedo was reading faster then i was actually going (compared to the reading on my Garmin GPS).

I am glad its not just me, and others notice it too!

 

At 120 kph indicated on the speedo, a timed by Tachymeter kilometer and my GPS both agree I'm actually doing 118 kph. That equates to an approx. 2% error.

 

This is in general with all cars they allow up to 5% I think so at 1.67% it sounds pretty good to me

 

My speedo is off by 2.5% but the trip computer is dead on.

Also my speed warning at 130km/h beeps at 132km/h (which is when my GPS says I crossed 130km/h).

 

you can shut the beeping sound off