Hi,Manuel,
I would first get your valves and batteries checked by National Tyres or similar they did mine free.
If they check OK which mine did they suggested I went to a garage they recommended which had the
necessary diagnostic equipment which I did,they connected their laptop to my OBD socket cleared the
fault all in 2 mins. No further problems and all done for free!! Worth a try.
Aye Yours,
Tug