some people are just learning that while repairing own car - e.g. my friend basically took his Audi A4's (B8) engine apart and put it back together as it had mu

some people are just learning that while repairing own car - e.g. my friend basically took his Audi A4's (B8) engine apart and put it back together as it had multiple recurring issues that nobody was able to fix - he fixed all of them by himself and now he knows almost everything about his car.