This little guy will make sure none of the metal fillings in your engine oil can move about and damage it. As a bonus you will also be able to tell if your engine has excessive wear. It has a very powerful magnet on its tip so it will collect allot of the gunk that usually floats in your car's engine oil.
Fits 1.8 , 2.0, 2.5 TDI and TSI/TFSI engines from Audi and Volkswagen. Brand new, bought it for a Tiguan but ended up selling the car.