Dovile

Hi. Today my 2014 Audi A6 S-line Ultra 2l diesel has had a solid yellow glow plug warning light illuminating while driving and the car has lost power. I stopped and turned off the engine, then re-started and it was ok. Rang up the garage as it's still on warranty and they said it could be regeneration, so we should drive and see if it comes up again. I will be driving it for approx 10 miles later on after work, but I'm just worried as we're planning an over 4k mile trip in a month and don't want any surprises... what are your thoughts on this?