Most recently answered speedometer questions
I have owned two cars from new with trip computers, both of which were over-optimistic about fuel consumption. Typically in my 2008 Mondeo diesel I achieve 47mpg by doing brim-to-brim calculations. The...
As my car's indicated speed differs by over 3mph on its speedo from what is shown on my satnav (which means there is at least a 10 per cent difference at 30mph), do you know which is more accurate? Also,...
Is there a law which says speedos are not to under-read?
I notice in most cars a satnav always seems to indicate a vehicle speed 2 or 3 mph less than the car speedo. I assume that the satnav should be absolutely accurate, but would appreciate your comments.
I have a Ford Focus estate with a 1.8 Zetec engine, registered in 2001. It has now travelled about 75,000 miles with no problems. Recently a fault has developed: the speedo and milometer stopped working...
I've just bought a new 61-plate Toyota Prius which has a completely electronic dashboard display. Checking the speedo against a SatNav, it showed that at a constant 70mph indicated (held by cruise control...
I have a 2000 Ford Focus 1.8.
When the engine has warmed up the speedo stops working for 5-20 miles, while the speedo isn't working the odometer and radio don't work properly and the engine loses power.
Also,...
With all the technical wizardry in modern cars, why do speedometers routinely over read? I've used GPS/Satnav units in many different cars and the cars speedo is always over reading. Spookily this over...
You may recall my email of May 2010 when you advised me I could not reject a new vehicle for what I thought was a speedometer that over reads by 10 per cent. I have now received confirmation from the MD...
Recently the speedo has been dropping to zero for a while. Occasionally it jerks and then restarts again later.
The vehicle as been owned from new but is now a second car mostly in good working order,...
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