Hi All, new to BMW but trying to learn as much as I can, bought my first bimmer 2002 Z3 M last month, last owner had taken out the bulb for engine light, long story short, after several attempts got most faults clear but stuck on P0011, I have read several posts on Vanos timing including videos by 50s kid. I have checked and rechecked everything several times but after I set my timing and then rotate 360 degrees to get back to TDC the intake camshaft looks to be advanced and the tool doesn’t fit on the back of the engine but the exhaust side looks fine. What could be wrong here??