I purchased a 2000 in June I had my vw mechanic change the oil the first time. My mother had borrowed the car in October and the alarm had gone off, so she checked the oil and noticed it was blacker than soot (normal) anyway she had a quick lube change the oil. WAS NOT HAPPY made damn sure they put Mobil one 0w40 in it they wanted to use Mobil 5000 5w30...knuckle heads. I took it in today and my oil pan is shot because someone had used a heli-coil on it and it sprung. He said more than likely the last person to change it probably did it...they deny using heli coil's. My mechanic noted no problems when he changed it and the dealership where I bought it had nothing in their notes about problems. Do these go on the first time or could this have lasted a year?