Hello, Oh where to start, for a while now I have noticed every once in a while after driving long commutes a ticking/tapping noise coming from the cylinder located on passenger side inline vertically with the intake valves/lifters/Vanos solenoid/injector and only after exiting the freeway coming to a stop do I hear it. The only way I have successfully got the noise to go away is to stop the engine for 10-20 seconds then start engine and it's gone for the day, it never occurs before (cold start-up) full operating temperatures always some time after. I know all to well how the death rattle sounds and this isn't it. To me it sounds like a noisy lifter or injector, it's got to be one of the above. My compression tests show a health engine and each cylinder builds up psi quickly! The question is what would a ticking/tapping noise point to? What would a failing Vanos solenoid or one of the above sound like? I really appreciate your reply! Thank you, Systemlord.