Vehicle has 2 codes that will not come off on 2002 Mercedes-Benz CL600

I believe this maybe a campaign issue software problem. Car wont pass smog 2 codes will not clear. Any solutions?Have done every possible smog suggestion under the moon. 60 days still wont clear.

1 answer
What are the codes? OR do you mean the 'readiness codes won't 'set'? .