Here’s a way how you can increase your maintenance IQ without making the mistake that I did. The car I was working on was a 2018 Audi A6, the two liter turbocharged version. It has a cartridge oil filter, and I was doing the oil change, so what did I do? I lifted the vehicle, removed the pan, and drained the oil from it. While the vehicle was still up in the air, I put the pan and the dust shield back on, and then lowered the vehicle and then removed the oil filter. Unbeknownst to me, and I really wasn’t thinking, oil from the housing and the filter drained back into the pan. So when I went to fill up the vehicle with additional oil with the correct specification from the manufacturer, it actually read that it was overfilled.
Overfilling oil is not a good thing on a modern engine. It’s actually worse than underfilling a car. So, when you’re doing an oil change on a vehicle with a cartridge oil filter, that’ll typically be mounted high up in the engine bay, you need to make sure that you take the cap, turn it until a relief comes into sight, it’ll be in the service information, and the oil will drain down into the oil pan, because typically, the filter will lift off the drain-back valve. And from there, you can drain all of the oil out of the engine. This way, you’re going to get a complete oil change and you won’t have a message for overfilled oil. I’m Andrew Markel. Thank you very much.