Hi Falka,
i joined up with Audi Assist for 12 months and a technician came out within 2 hours - hooked up the diagnostics and changed the sensor, fixed ! Just like magic. Thanks so much for this otherwise I’d never have had it fixed when I did. Sometimes visiting forums when other people are in your position can be incredibly rewarding!
-Oh, and I didn’t have to pay a penny as it was all covered with the garage I bought it from 😊