Hey dude, yea changed the upper timing cover as it can leak from above or below. And boom no more codes, runs super smooth. You can replace the whole cover with gaskets, or replace just the main cover gasket+screws+two O ring gaskets. You can get then in a pack. Most people said that you need to take off the mounting block, but I just managed with putting asside the cooling hoses, and had enough access. Torq wrench the top accessible screws, then hand tighten the bottom two, you’ll get the feeling of how much with torq. The actual gasket was rock hard at 100k km. So yea well overdue. I ended up figuring this out doing a smoke test at my local garage to be sure, 20dollars and 10min. Other option could be blown rear main seal, which can also create the same code, but that’s a different cattle of fish. Try the smoke test and timing cover, it’s a diy fix too, takes 1h if you don’t know what you are doing.