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Oxygen Sensor
BOSCH Oxygen Sensor - 16749
Oxygen Sensor
BOSCH Oxygen Sensor - 16749

Bosch Oxygen Sensor - 16749

BOSCH
Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU 16749
$79.97 - $79.97
$79.97
$79.97 - $79.97
$79.97
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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BOSCH

Oxygen Sensor

This product also goes by these part numbers: 004 542 07 18, 0045420718, 16749

This part also goes by the following cross reference.

Cross Reference Part Number: 0045420718

Fits These Vehicles 25 applications
Mercedes-Benz
Make Model Engine Years
Mercedes-Benz C63 AMG 6.3V8 2008–2015
Mercedes-Benz SL63 AMG 6.3V8 2009–2009
Mercedes-Benz SL63 AMG 6.3V8 2011–2012
Mercedes-Benz SL550 5.5V8 2007–2009
Mercedes-Benz SL550 5.5V8 2011–2012
Mercedes-Benz GLK350 3.5V6 2010–2012
Mercedes-Benz GL550 5.5V8 2008–2012
Mercedes-Benz GL450 4.7V8 2007–2012
Mercedes-Benz SLK350 3.5V6 2005–2011
Mercedes-Benz SLK300 3.0V6 2009–2011
Mercedes-Benz R350 3.5V6 2006–2011
Mercedes-Benz ML550 5.5V8 2008–2011
Mercedes-Benz ML350 3.5V6 2006–2011
Mercedes-Benz E550 5.5V8 2007–2011
Mercedes-Benz E350 3.5V6 2006–2011
Mercedes-Benz CLS550 5.5V8 2007–2011
Mercedes-Benz C350 3.5V6 2006–2011
Mercedes-Benz C300 3.0V6 2008–2011
Mercedes-Benz CLK550 5.5V8 2007–2009
Mercedes-Benz CLK350 3.5V6 2006–2009
Mercedes-Benz SLK280 3.0V6 2006–2008
Mercedes-Benz CLK63 AMG 6.3V8 2007–2008
Mercedes-Benz S550 5.5V8 2007–2007
Mercedes-Benz C280 3.0V6 2006–2007
Mercedes-Benz C230 2.5V6 2006–2007

Fitment data last updated: 2026-06-30

Fits 25 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The BOSCH 16749 oxygen sensor measures the oxygen in the exhaust so the engine computer can keep the fuel mixture correct. Sensors before the catalytic converter control the mixture; sensors after it monitor the converter's efficiency.

Frequently asked questions

What does an oxygen sensor do?

It reports how rich or lean the exhaust is, and the engine computer adjusts fuel delivery in response. A faulty sensor can make the engine run too rich or too lean.

What are the signs of a failing oxygen sensor?

A check-engine light with oxygen-sensor or fuel-trim codes, poorer fuel economy, rough idle, or a failed emissions test. Exhaust leaks near the sensor can cause similar codes, so check for those too.

How do I know which sensor I need?

Sensors are specific to their position: upstream (before the catalytic converter) or downstream (after it), and on V engines, bank 1 or bank 2. The fault code usually identifies the position; check the product details for the position this sensor fits.

Can I replace an oxygen sensor myself?

Usually, yes, using an oxygen-sensor socket. Many new sensors come with anti-seize already on the threads; if not, use a sensor-safe compound only on the threads, and keep it off the sensor tip.

How do I make sure this oxygen sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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