I don't know why they are selling such $$$ expensive $$$ cars that cannot be quiet. . . I am convinced BMW believes 3 series owners enjoy riding in cars with ticking engines audible to the person stopped next to you at a light ...
A disgruntled customer relays his experience to 20 x more people than a happy customer. BMW USA / NA are you even OUT THERE???? The TSB should now mandate a cylinder head replacement ... no PUMA case...the bleed hasn't worked for anyone and is merely a waste of customer's time.