The oil sensor works using capacitive measuring i.e it passes a voltage into the oil and watches the returns so in a way it does measure the metallic content in the oil but it can also detect the oil starting to degrade without engine crap being present it also detects the oil temperature and level using the same principle.
The ASSYST will compensate for clean oil but its not going to add 10k miles to interval maybe just a few k per change and saying we don't add oil when its low sounds foolish to me, i think you should give it the oil it wants mate if it did not need it then it would not be asking would it.
Maybe try another dealer next time
__________________ One thing you will learn with German cars - If it's simple it ain't happening. |