Mercedes C-Class reliability. Reliability may be less of a reason to buy a C-Class; although the latest model is too new to feature on our 2022 survey, the outgoing one ranked 71st out of 75 Audi A4 / S4 vs. Mercedes-Benz C-Class Reliability by Model Generation. Show details. See stats for powertrain and chassis repairs. Year and Model. % of Average Repair Frequency. 2017 - 2018 Audi A4. Best 68% Worst. See problems for this generation Share on Facebook. 2017 - 2018 Audi A4. How Reliable Is the 2018 Mercedes-Benz C-Class? The 2018 Mercedes-Benz C-Class has a below-average predicted reliability rating of 2.5 out of five from J.D. Power. Read more about C-Class reliability » 2018 Mercedes-Benz C-Class Recalls . At the time of writing, there are 11 recalls for the 2018 Mercedes-Benz C-Class: In the early 2000s, Mercedes was going through a period of reliability woes and this C-Class and the contemporary E-Class were the cars that fared worst.. Many of the issues can be traced to the The Mercedes-Benz E-Class. U.S. News & World Report lists the Mercedes-Benz E-Class as being one of the most reliable used luxury vehicles on the market. While there are a few models in the E-Class series, the E350 from 2009 is the most popular sedan purchased that year. The E350 caught the attention of Consumer Reports, who loved the How Reliable Is the 2015 Mercedes-Benz C-Class? The 2015 Mercedes-Benz C-Class has a poor reliability rating of two out of five from J.D. Power. Read more about C-Class reliability » 2015 Mercedes-Benz C-Class Recalls . As of this writing, the 2015 Mercedes-Benz C-Class has eight recalls. As long as you can afford regular maintenance and budget about $2k for an unplanned repair every few years, you should be just fine. “The average cost for a Mercedes-Benz C300 oil change is between $167 and $184. Labor costs are estimated between $57 and $71 while parts are priced between $110 and $113.”. View all 77 consumer vehicle reviews for the Used 2006 Mercedes-Benz C-Class C230 Sport 4dr Sedan (2.5L 6cyl 6M) on Edmunds, or submit your own review of the 2006 C-Class. 1sy6GT.