Mercedes Benz A274 Engine Control Unit ECU NOX DTC OFF PROGRAM Service

Mercedes Benz #A274 Engine Control Unit ECU NOX DTC OFF Service
Mercedes Benz #P229F62 and #P2202 error codes explained
If an on-board computer scan of your Mercedes Benz has highlighted the error codes P229F62, P229e or P2202, this means that the #NOx sensor Mercedes on your vehicle has failed. These error codes are applicable to the following Mercedes Benz models: Sprinter W906, #W222, #W205, #W212, #S212, #A207, #C207, #W213, #W238, #GLC, #W166 #GLE Bluetec and many other cars.
Below in this guide you'll find our collected the most common Diagnostic Trouble Codes - DTC for engine management ligh (#EML) of NOx sensors and NS11A NGK Japan probe head.
What happens when a NOx sensor fails?
NOx is short for nitrogen oxide. A NOx sensor is a device designed by Lambdasonde to detect the amount of nitrogen oxide excreted by your Mercedes Benz’s exhaust system. This sensor or probe is vital when it comes to detecting the saturation point of nitrogen oxide to ensure the efficient running of the engine and effective exhaust gas measurement/after-treatment.
When a NOx sensor ballast - control unit fails, you may notice several vehicular OBDII OBD II #DTC diagnostic trouble codes also known as faults on the dashboard of your Mercedes Benz, including the “check engine” light. Fuel mileage may appear greater than before, and the engine could even start blowing thick, black smoke.
Exhaust after treatment malfunction is very common issue for cars with AdBlue SCR system
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