Had this happen yesterday at 9 months/11.000 miles. Whizzed it over to the local BMW dealer and was slightly surprised to find a mechanic who appeared genuinely interested and knowledgeable (should have him stuffed...).
Apparently air often remains in the system during factory filling and this issue manifests itself at this km/mileage.
Last edited by Ermo; 01-30-2014 at 01:14 PM..
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