My 2016 C300 (in-line 4 turbo, "petrol" with 241hp) at 55K miles had 1st cylinder cracked while driving on highway, and my car is out of warranty. I talked to my dealership and the corporate separately. The dealership would cover the cost of the parts whether the engine needs replacement or not, as I bought my car there new and have been using them through prepaid maintenance. I decided to fix the car and pay them pre-arranged labor. But here is the response from the corporate: Thank you for your email to Mercedes-Benz usa, although we regret to learn of the circumstances that prompted your contact. While we understand your concerns, all warranty determinations are provided by an authorized Mercedes-Benz dealership upon inspection. If the warranty has expired, there is no obligation on part of the manufacturer, to cover the cost of repairs. Customers can request goodwill assistance, however which is reviewed on a case by case basis and not guaranteed. It may be helpful for you to know that when reviewing your concern, the vehicle requires an inspection at an authorized Mercedes-Benz dealership, and the following variables would be taken into consideration: Vehicle age, mileage, vehicle history, service/repair history (whether maintenance is performed at mb dealers), and brand loyalty. Review for goodwill requests can only be reviewed prior to repairs being performed, as reimbursement is not possible. We appreciate the opportunity to respond. There may be more cases as shown on this forum: Https://mbworld.org/forums/C-class-W205/731642-W205-C300-stay-away-piston-cracked-65-K-miles-5.html

- Riverside, CA, USA