Mercedes E-Class 2011 Diesel P0269 Code: Cylinder 3 Fuel Contribution/Balance Issue

Model: Mercedes E Class 2011 diesel Fault Code: P0269 Posted: 2016-07-19 15:28

The engine management light has been on for approximately one month. Diagnostic testing reveals fault code P0269, indicating a problem with the fuel contribution or balance in Cylinder 3 of the diesel engine. I took the vehicle to a mechanic who confirmed the same diagnosis and recommended continuing use of injector cleaner, as I had already been doing so. Despite this, the issue persists— the warning light activates consistently after about 25 minutes of driving. Any expert advice on potential solutions or next steps would be greatly appreciated.