[slk230benz]

so i got a CEL and my code reader says random misfire detected and cylinder number 3 misfire detected. I plug the plug and cleaned it and that didnt help. I switched coil packs and that didnt help. So now im tihnking injector? How would I go about doing this? It should be relatively simple yes? Thanks for all help! Cody

 

[slk230benz]

thanks for all help and fast response Will go pick up some plugs today. And then go from there.