How do you solve this problem? on 2006 Mercedes-Benz E350

This examination report from a car workshop
http://www14.0zz0.com/2013/01/04/22/769636171.png
What are the potential costs of repair?

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1 answer 1 comment
sounds like you have a timing issue, what did the shop say?
Do you replace the sensors enough or must switch Timing column or full enough party that the problem