Hello! Everyone certainly knows the speed deviations with his car, which has used an external navigator. I haven’t experienced a car yet, at which the speed is only approximately the same as the speedometer indicator. Also from factory, independent of tyres etc. With our V60 it is constant 5 km/h, another factory commutes between 9 and 12 km/h or e.g. 7 with a Galaxy. Always under the display well noticed, therefore of course no drama. Has someone already dealt with it, there are at the Volvo dealer the possibility to adjust here? Shouldn’t be witchcraft I think. Otherwise I found tools such as the Speedohealer, which makes little sense if the workshop does this quickly. And I don’t like to install any foreign components, because it is also not worth time/money.