As you may know, my car ran out of oil while i was driving it and the tappets started tapping really loud, luckily i wasn't far from home so got home and put some oil in and tappets were quiet, not long after i booked it in to vw for a service, as soon as i started the car from their garage i could hear the tappets for a secons or 2 then would be ok, just recently the tappets have been quite loud until the engine is warm.
Will this damage the engine? i cant afford to get the engine looked at yet