Why would a NOx sensor go bad?
NOx sensors monitor the level of nitrogen oxide being emitted by a diesel vehicle to ensure compliance with emissions regulations. Common causes of failure include soot buildup on the sensor, ECU water intrusion, and/or damage to the cable, which will cause the check engine light to illuminate.
Are there any continuous Def problems with Mercedes Sprinters?
Each of them have been the shop multiple times for the same problems. Chk Eng/Chk DEF/10 Starts Remaining. Mercedes and Freightliner can not seem to solve the problems. They just throw parts at the problem and send you on your merry way, only to have the same problem occur a day/week/month later.
Where are the sensors in a Mercedes Benz Sprinter?
The exhaust system is comprised of a CDI (control unit) which monitors and actuates the sensors and valves in the exhaust system; a DEF pump. A DEF tank, a DEF temp sensor, a DEF level sensor and an SCR control unit with actuators and sensors. These items a located under the hood.
What are the parts that need to be replaced in a sprinter?
Most of the time the parts replaced are (in order) NOX Sensors, Upstream Temp Sensor, DEF Dosing Valve, SCR (catalytic converter) and an occasional EGR Valve. Of course, all of these problems start AFTER the emissions warranty has expired.
Is there a problem with my sprinter tank?
It has nothing to do with putting the wrong thing in the Def tank. It’s a problem for a number of people even single owners driving their own sprinter. It has nothing to do with putting the wrong thing in the Def tank. It’s a problem for a number of people even single owners driving their own sprinter.
Each of them have been the shop multiple times for the same problems. Chk Eng/Chk DEF/10 Starts Remaining. Mercedes and Freightliner can not seem to solve the problems. They just throw parts at the problem and send you on your merry way, only to have the same problem occur a day/week/month later.
Most of the time the parts replaced are (in order) NOX Sensors, Upstream Temp Sensor, DEF Dosing Valve, SCR (catalytic converter) and an occasional EGR Valve. Of course, all of these problems start AFTER the emissions warranty has expired.
The exhaust system is comprised of a CDI (control unit) which monitors and actuates the sensors and valves in the exhaust system; a DEF pump. A DEF tank, a DEF temp sensor, a DEF level sensor and an SCR control unit with actuators and sensors. These items a located under the hood.
How much does it cost to fix a Mercedes Sprinter?
We have had numerous “repairs” performed at various dealerships at costs of $2000, only to have the engine light appear again within a few hundred miles. Then when taken to another dealership the “problem” is diagnosed as another sensor or valve and once again we have been charged up to $2000.