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Restore your vehicle's efficiency and clear emissions errors with this high-precision Nitrogen Oxide (NOx) Sensor. Designed specifically for Mercedes-Benz diesel engines, this sensor monitors the level of nitrogen oxide in your exhaust gas to ensure your SCR (Selective Catalytic Reduction) system functions perfectly. It is a direct replacement for the original part, engineered to meet or exceed OEM specifications for durability and accuracy.
Is your Mercedes stuck in "Limp Mode" or displaying the dreaded "Engine Start Denied in XXX miles" countdown? These issues are frequently caused by a faulty NOx sensor failing to communicate with the ECU. Replacing your old unit with this A0009056304 sensor is the standard solution to clear these faults and pass emissions tests.
Plug & Play: Correct electrical connector for a seamless installation.
High Sensitivity: Accurately measures NOx concentrations to optimize fuel consumption and reduce harmful emissions.
OEM Compatibility: Fully compatible with original part numbers A0009056304 and Continental 5WK97250.
Durability: Built to withstand high exhaust temperatures and harsh under-car conditions.
Compatibility List:
This sensor fits a wide range of Mercedes-Benz models including:
A-Class (W176)
CLA (C117)
GLA (X156)
GLE / ML (W166)
S-Class (W221)
Post-Installation Note: After replacing the sensor, it is usually necessary to clear the stored fault codes using an OBDII diagnostic tool to reset the vehicle's countdown or limp mode status.
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