That is super BS! No way you should change plugs after 22,000 km...you shouldn't even come close to changing plugs at 22,000 miles.

I hate bad dealers that try to pull crap like this!

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ON HER WAY OUT: 2009 X5 xDrive48i - Black Sapphire Metallic - Saddle Brown Nevada Leather - Dark Bamboo Wood

ALMOST HERE: 2007 M5 - Silver Grey Metallic (more to come)