Intake Manifold


I have a 2008 Mercedes Benz C300 with the following error codes: P2006, P0170, P0173. I repaired its intake manifold by using the URO Parts Intake Manifold Repair Kit

Unfortunately, after I reinstalled repaired intake manifold back to the car, the original fault code were still present. Any ideas, what else should be done to get rid of those codes?