FITMENT
Compatible with Mercedes-Benz heavy-duty diesel vehicles equipped with SCR (Selective Catalytic Reduction) AdBlue emission systems requiring NOx monitoring.
Common applications include:

• Mercedes-Benz Actros (MP4 / MP5 Euro 6 variants)
• Mercedes-Benz Arocs
• Mercedes-Benz Antos
• Mercedes-Benz Atego
• Some Mercedes-Benz trucks & buses using OM470 / OM471 / OM473 engines

Using reference numbers:

• A0111537428 / 0111537428
• A0111537228
• A0101539628
• A0091530128 / 0091530128
• SNS1026 / SNS1024 (sensor family designation)
• 5WK96640 / 5WK96659 / related Continental NOx sensor platform

These are commonly cross-referenced variants of the same SCR NOx sensor family used across different Mercedes emission system revisions.

FAQ
Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide (NOx) levels in the exhaust system and sends real-time data to the ECU to control AdBlue/DEF injection and reduce emissions.

Q2: Where is it installed?
A2: It is installed in the SCR exhaust system, usually before or after the catalytic converter depending on engine configuration (inlet or outlet sensor position).

Q3: What are symptoms of failure?
A3: Check engine light, SCR/AdBlue warnings, NOx sensor fault codes, reduced engine power, or limp mode activation.

Q4: Are these part numbers interchangeable?
A4: Many of these part numbers are cross-references within the same Mercedes SCR sensor family, but exact compatibility depends on engine model, emission stage, and ECU calibration. Always verify by VIN.