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0045420718 – Mercedes-Benz Lambda sensor OE number
Description
0045420718 – Lambda sensor OE number by MERCEDES-BENZ
This component is a downstream (post-catalytic) diagnostic probe designed to monitor the oxygen levels in the exhaust gas after it passes through the catalytic converter. It transmits real-time voltage signals to the Engine Control Unit (ECU) to verify the converter’s efficiency and ensure the vehicle remains within emissions compliance.
Compatibility:
This part is primarily used in Mercedes-Benz vehicles across a wide range of models including;
- C-Class (W203/W204, 2001–2015),
- E-Class (W211/W212, 2003–2014),
- S-Class (W220/W221, 2000–2013),
- CLK-Class (W209, 2003–2009),
- CLS-Class (W219, 2006–2011),
- SLK-Class (R171/R172, 2005–2015), and various SUVs such as the
- ML-Class (W164) and
- GL-Class (X164).
It is also compatible with certain Smart Fortwo (2008–2015) and Maybach models.
