Why does my spark plugs always becames dark and i need to like clean it once a week
My spark plugs always becomes black/dark like missfire but anyone who
know why it becomes like this and how can i fix that please help me
Should get it to a shop. The plugs are black because it is running rich. There must be a bad 02 sensor, or some other sensor causing this. A shop can diagnose this.
Yes, and most probably a Service or check engine light on too?
Engine light is not on
Looking for a Used C-Class in your area?
CarGurus has 29,216 nationwide C-Class listings starting at $1,500.
Search Mercedes-Benz C-Class Questions
Mercedes-Benz C-Class Experts
Related Models For Sale
Used Cars For Sale