I have a 2005 325i with 36k miles still under CPO warranty. Lately after the car has reached operating temps I notice there is a ticking sound coming from the engine. I have read about the VANOS failures, but those seem to indicate noise at start up as a sign, where my car doesn't make the ticking noise when cold.. When the hood is open the noise sounds as if it is coming from the valve cover and not the VANOS unit. BTW. the oil is at the correct level. Any ideas? I am trying to avoid taking it to the dealer as they will charge the CPO fee if noting is found.
