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Re: Speedometer lying at high speeds?
> Recently the local authorities placed a radar speed monitor/display
> at a highway near where I live (it contains a large digital readout
> of your car's speed as you approach it), and my A4q's speedometer is
> just about spot-on.
I guess the spring in the speedo gets weaker with age and allows
the needle to move more for the same speed, hence the high
readings on the older car.
There is also the theory that if your instrument accuracy is
+/- X mph, then it is deliberately set to read X mph high...
for product liability reasons.
My 5kcsq reads between 3 and 6 mph high at 60 to 80 mph.