As you will have noticed these are made by Continental. I bought a second set branded, as above, as Mitsu in 2015 but never fitted them as I didn't get a second set of wheels until last year. However, when fitted by my dealer they couldn't be "read" because, presumably, the batteries had gone flat - despite not being used (see above). As a result, I not only had to pay for another set of valves but also to have the tyres removed and re-fitted again
Continental have a 5 year warranty on these but although I have repeatedly e-mailed them to ask how I go about claiming against the warranty, all I get back are acknowledgements (apparently from work experience staff
) promising a reply - but bugger all!
So much for fabled German efficiency