Unfortunately my 2012 C180 CGI slipped its timing chain, cost from independent Mercedes specialist to repair the damage £3500. So the car had full main dealer history serviced at the correct intervals, travelled 86,000 miles. Clearly the timing chain does not last the life of the car, the only warning was EML light a few days before catastrophic failure. Code was 0017. So the reason for the post is to warn buyers if you have a car of this age that has not had a timing chain change, beware. If you get fault code 0017, dont drive your car.