One problem related to starter relay has been reported for the 2015 Mercedes Benz C300. The most recently reported issues are listed below.
The car has intermittent starting issues more noticeably during eco start / stop process. When car does an eco stop at red light or stop but it is unable to restart consistently (10-20% fail rate). All dashboard lights come on and car is stalled. Car can roll if on a hill. Car can be restarted by turning car on and off manually. Only error code is p1ce200 but the manufacturer suggested steps do no solve problem. Battery, auxillary battery, starter, voltage dip limiter, battery sensor, starter relay were replaced. Delear unable to find problem and says all software is up to date.
| Electrical System problems | |
| Software problems | |
| Battery Dead problems | |
| Wiring problems | |
| Ignition Switch problems | |
| Starter Relay problems |