My engine sounds different! I've been getting gas at a different gas station. The check engine light turned on yesterday.! It seems to not want to go fast when traveling on the highway.
What makes this problem better or worse?
It’s better when driving 55 mph
How long has your 2012 Mercedes-Benz CLS550 had this problem?
RepairPal Certified shops can diagnose and repair your 2012 Mercedes-Benz CLS550. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
