3 months hmmm yep have dealt with the aftermath many times very much the same chain of events, remember one guy he had a 12 months old audi v6 petrol tfsi engine done the same thing thought as a new car under 10k on it , trouble is this new low friction tech engines all use oil by design, expensive mistake for him aud would not honour the warranty as he run it low on oil and they could tell from past live data and faults codes stored ie a level of code storage dealer only can read, prince engines dont do well with oil light on for any amount of time damage will be done for sure how long the total end is away only time will tell