White Dipstick Deposits
I have a 2000 A4 - 1.8L QT. I was doing some spring maintenance this weekend and noticed some hard white deposits sticking to the dipstick when I checked the oil after replacing it. Almost like calcium or something that you might find at the bottom of an old tea kettle - hard but easily crushed with your fingers. I bought the car last year and did not notice anything like this until now. I hope this is not the sign of something serious. I have been doing some searching and some sources point to a possible slow coolant leak into the oil, but the strange thing is when I look down into the dipstick tube, the deposits are on the sides of the tube higher up above the oil line. Not sure what this means. Any advice or thoughts of what to check would be greatly appreciated. I have 3 months left on a pre-owned warranty from Audi, so hopefully if it is serious, I can get it covered.
Many Thanks
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