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Old June 15th 05, 10:39 PM
SteveG
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Dave Plowman (News) wrote:
> In article >,
> SteveG <\s.goodfellow\@blueyonder <dot> wrote:
>
>>If you live in Europe ALL speedometers (should) read faster than you are
>>actually going ... it's a legal requirement and explains why the needle
>>on many speedos start above zero.

>
>
> Crap. ;-)
>
> I've got a UK car (not a BMW) where the speedo is accurate.
>
> The requirement is that it shouldn't under-read. From the days of
> mechanical devices.
>
> In these days of pulse counting types, the idea of having a speedo which
> is 10% out is ludicrous. 1% high or so when new would cope with tyre wear.
>
> It suits the car makers to have speedos that read high - "my car can
> easily do 100 mph" or similar, while the actual top speed might be 90.
>


Not manure. Check the current construction and use regulations. The
wording is such that to comply fully the speedo has to read over even if
it's by as little as 0.1% - which I would consider to be "accurate". I
also have a non-BMW car in which the speedo is (as far as is measurable
without specialist timing devices) about 2% out between 30 and 70mph. I
haven't checked it outside of this range. I never mentioned 10%.


--
Regards

Steve G
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