Problems when changing NOx sensors
Thread Starter
Newbie
Joined: Dec 2023
Posts: 1
Likes: 0
W205 C200 CDI bluetech 2014
Problems when changing NOx sensors
Hello good day, I hope you can help me
I have a Mercedes W205 C200CDI BLUETECH 2014, the vehicle has a check engine on, I get alarmed when I get the message that says AD BLUE, no start at 600 KM, I also start getting the message "Fill level measurement not possible" When installing The OBD 2 reader (thinkdiag pro) gives me the following:
P229F NOx Circuit Range/Operation Sensor Group1 Sensor 2
U029D Loses communication with NOx Sensor A
P2BA9 NOx exceedance - insufficient amount of reagent
After changing the 2 NOx sensors 1 and 2, the sensor change configuration is then carried out with the OBD2 reader
The "AD BLUE, no start at XXX KM" or "Fill level measurement impossible" warning does not go away and I only get a check engine code
U029D87 The communication with the NOx1 sensor has a malfunction. message is missing
Does anyone know what else I can do????
Greetings and in advance thank you!!
I have a Mercedes W205 C200CDI BLUETECH 2014, the vehicle has a check engine on, I get alarmed when I get the message that says AD BLUE, no start at 600 KM, I also start getting the message "Fill level measurement not possible" When installing The OBD 2 reader (thinkdiag pro) gives me the following:
P229F NOx Circuit Range/Operation Sensor Group1 Sensor 2
U029D Loses communication with NOx Sensor A
P2BA9 NOx exceedance - insufficient amount of reagent
After changing the 2 NOx sensors 1 and 2, the sensor change configuration is then carried out with the OBD2 reader
The "AD BLUE, no start at XXX KM" or "Fill level measurement impossible" warning does not go away and I only get a check engine code
U029D87 The communication with the NOx1 sensor has a malfunction. message is missing
Does anyone know what else I can do????
Greetings and in advance thank you!!
