On Mon, 9 Feb 2009 21:40:30 -0000, Ron Lowe wrote:

I found it to be 15.6v with the engine running. IMHO, that's too high,
and possibly the cause of the lamp problem.

Agreed, stop faffing about and take it to the dealers to sort out. Report
the blowing of bulbs and the voltage you have found. It's not right, stand
your ground firmly and politely.

--
Cheers
Dave.