2002 Mercedes-Benz CL600 Q&A

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

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