FITMENT
Compatible with Mercedes-Benz Group AG diesel vehicles equipped with SCR (Selective Catalytic Reduction) systems requiring NOx monitoring.
Common applications include Mercedes-Benz commercial and heavy-duty diesel vehicles using reference SNS3044 / A0111536328.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide concentration in exhaust gases and sends signals to the ECU for precise AdBlue/DEF dosing and emissions control.

Q2: Where is it installed?
A2: It is installed in the exhaust system, typically upstream or downstream of the SCR catalyst depending on system configuration.

Q3: What are symptoms of failure?
A3: Engine warning light, SCR system fault codes, increased emissions, and possible engine derating.

Q4: Is it compatible with all Mercedes-Benz vehicles?
A4: No, compatibility depends on engine type, emissions standard, and SCR system layout.