Front O2 Oxygen Sensor – 4-Wire – Fits Mercedes Benz W203 W211 W219 C230 E240 E320 E500

Fix your Mercedes' check engine light and restore fuel efficiency with this new front oxygen sensor.

It's designed to fit a range of popular models, including the W203, W211, and W219 chassis, covering the C230, E240, E320, and E500.

This is the front (pre-cat) sensor, which is critical for monitoring your air-fuel mixture.

It replaces OEM part numbers 0015400517 and 001 540 05 17, as well as Bosch type 0258005272.

It's a 4-wire sensor with an overall length of 420mm, a direct replacement for the original.

This is an unbranded part, but it's built to OE specs and comes with a manufacturer's warranty.

If your Mercedes is running rough or getting poor gas mileage, a faulty O2 sensor is a likely culprit.

Swap it out with this new unit and get back to smooth, efficient driving.