I have a 2005 C230 Kompressor (1.8 liter four cylinder supercharged). I didn't get CEL on my dashboard, but I ran diagnostic with my Torque app and it came up P201C.

P201C is Cylinder #1, injector.

How can I fix this? Replace the injector or what?

Is Cylinder #1 is the first one, on the very front part of the engine?

thanks

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2005 Mercedes C230 Kompressor
2009 Mercedes C350