[Tech]

Im not sure about in the U.K. you will need to check.But here in the U.S. we had the same problem with our cars.There was a special sheild that we needed to install around the speed sensor.That would stop it from reading interference to the sensor.
Check with you local dealer about the sensor sheild.

 

[Tech]

The sheild stop interferance to the sensor.Something interfers with the signal to the sensor.

I would have thought they would have addressed the issue earlier but I think they just got it figured out in the last year or two.