X3 ticking sound/CPO
I bought my 2007 X3 used while it was still under the original warranty and now I am under the last phase of my CPO with it expiring 11/21/12, a little over a month away.
Nine months after I purchased my X3 I took it in to the dealer for the SO irritating ticking noise. According to my invoice from the dealer they noted this condition I described in SIB 11 09 07. They checked the cylinder head casting number (755255004) and determined the issue was the exhaust lifters as the cause of the noise. They removed the engine valve cover, exhaust vanos unit and exhaust camshaft. They replaced all lifters using updated parts, installed camshaft and vanos unit, ensured proper valve timing and used new gaskets when installing the valve cover. The ticking went away for a while but reappeared when the weather got cold again but I didn't do anything about it. The ticking went away in the warm months but now that it is getting cold out again the ticking noise is back.
I am considering taking my X3 in before the CPO expires to look at this issue again but wondered if this issue is even covered under my CPO warranty. I just called the dealer and they said they couldn't tell me without looking a the vehicle and me paying the $50 deductible if this is covered under my CPO. Has anyone dealt with this issue under CPO and was it covered? Since this is a well known issue with BMW's and a recurring one with this vehicle I would hope it would be.
I would love to hear any suggestions and advice so I may get this taken care of before my CPO runs out.