Hello everyone. I have a 2013 Mercedes C200 CGI, Auto, and has done 72 614 Kms mileage. Four weeks back, I slightly hit another car by the left front fog light and no airbag was set off. Only the fog light on the left will not switch on when it get dark but during the day, it works just fine. 

Unfortunately three weeks back I noticed the car at times will not start and will need jump starting for it to run. This is irregularly done, at times goes for three to four days starting normally and the suddenly doesn’t start. I therefore did the following-:

1. I checked the battery at a local battery dealer and they indicated it’s in good condition.

2. I checked all fuses and none was blown, more especially on the engine bay.

3. I researched online and decided to replace starter relay in case it’s giving up,  but unfortunately the local supplier gave me a wrong 12v one with 75 written on the inside. From the car the relay has 60 written on the inside. 

4. I used my small icarsoft CR Pro diagnostic tool and the following codes were registered : B219116, B210C16, C221500, C200100.

Please assist me on the way to rectify the problem. 

Thank you. BRIAN