Upstream O2 Oxygen Sensor For Mercedes-Benz A0035427018 A0035426918

The Upstream O2 Oxygen Sensor for Mercedes-Benz is a precise, direct-replacement sensor designed to read exhaust gas conditions ahead of the catalytic converter. By delivering accurate real-time feedback to the engine control unit, it helps optimize the air-fuel mixture, improve fuel efficiency, and reduce emissions while maintaining smooth acceleration and reliable cold-start performance.

Featuring a piezoelectric sensing element and heating capability, this sensor responds quickly to changes in exhaust composition and reaches operating temperature faster. That means more immediate, stable readings during start-up and in sustained driving, helping your Mercedes-Benz run at its best across a range of conditions.

To cover a wide range of MB vehicles, the listing includes extensive cross-referencing with OEM numbers. This upstream O2 sensor is positioned to fit a variety of models and engine configurations, providing a robust, ready-to-install solution for restoring optimal engine management without guesswork.

• Restore accurate oxygen readings to the ECU for improved fuel economy and reduced emissions on affected Mercedes-Benz models.
• Benefit from faster warm-up readings thanks to the built-in heating element, helping the engine reach optimal performance more quickly.
• Use as a reliable replacement for worn or faulty upstream sensors to maintain smooth idle, responsive acceleration, and consistent performance across model years listed in compatibility notes.

• Brand: IWOKPHD
• Sensor Type: Piezoelectric
• Type: Heating Type
• OEM / Part Numbers: A0035427018, 0035427018, 0 035 427 018, 0035426918, A0035426918, 0045426918, A0045426918, 0035427118, A0035427118, 0075420118, A0075420118, 0095426018, A0095426018, 0055429818, A0055429818, 68012050AA, 05149027AA, 5149027AA, 11787539123, 11787540168, 13627793825, 7539123, 7540168, 7793825, V30760038, V30-76-0038, 009166801, 108472, 009166811, 702604990, 0258017016, 0258017017
• Origin: Mainland China
• Measuring Range references: 68012050AA, 05149027AA, 5149027AA, 11787539123, 11787540168, 13627793825
• Hysteresis references: 009166811, 702604990, 0258017016, 0 258 017 016, 0258017017
• Repeatability: For MERCEDES-BENZ CHRYSLER DODGE JEEP
• Resolution references: 0075420118, A0075420118, 0095426018, A0095426018, 0055429818, A0055429818
• Application/Fit: TO FIT Mercedes-Benz models including A-Class (W169, W176), B-Class (W245, W246/W242), C-Class (W203, W204, C204, C63 AMG variants), CLA (C117, X117), CLC (CL203), CLK (C209, A209), CLS (C219), and more listed in the product notes.

Package includes:

• 1 x Upstream O2 Oxygen Sensor

• Please check the picture and the part number carefully to ensure you have the right part for your car.
• If you cannot confirm which item fits your car, please send the Part Number or the Original product photos to us to confirm before ordering.
• The only way to be 100% sure that the part will fit your vehicle is to check your original part. We will check for you and reply within 24 hours.

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