What is the function and operation of an oxygen sensor on 2007 Mercedes-Benz C350?

An oxygen sensor is a galvanic battery which produces a voltage in uncombusted oxygen in exhaust. Upstream sensors modulate pulse width of fuel injectors in order to have an optimum combustion whereas downstream sensors gauge the efficiency of catalysts. There must be proper connections, temperatures and unleaded fuel. The process of replacement includes heating the engine, disconnection, unscrewing and installation of the sensor.

Genuine 2007 Mercedes-Benz C350 Oxygen Sensor

Oxygen O2 Sensor

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2 Oxygen Sensors found

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2007 Mercedes-Benz C350 Rear Oxygen Sensor
Part Number: 004-542-07-18
$136.80 MSRP: $190.00
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Product Specifications
- Other Name: Sender Unit; Rear Oxygen Sensor
- Replaces: 003-542-82-18
- Item Weight: 0.70 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 004-542-07-18
- Warranty: This genuine part is guaranteed by Mercedes-Benz's factory warranty.
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Fits the following 2007 Mercedes-Benz C350 Submodels:
- 4Matic, Luxury, Sport | 6 Cyl 3.5 L GAS
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2007 Mercedes-Benz C350 Front Oxygen Sensor
Part Number: 003-542-71-18
$265.87 MSRP: $370.00
You Save: $104.13 (29%)
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Product Specifications
- Other Name: Travel Sensor; Front Oxygen Sensor
- Item Weight: 0.70 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 003-542-71-18
- Warranty: This genuine part is guaranteed by Mercedes-Benz's factory warranty.
Fits the following 2007 Mercedes-Benz C350 Submodels:
- 4Matic, Luxury, Sport | 6 Cyl 3.5 L GAS

2007 Mercedes-Benz C350 Oxygen Sensor Parts Q&A

Q: What is the function and operation of an oxygen sensor on 2007 Mercedes-Benz C350?
A: An oxygen sensor is a galvanic battery which produces a voltage in uncombusted oxygen in exhaust. Upstream sensors modulate pulse width of fuel injectors in order to have an optimum combustion whereas downstream sensors gauge the efficiency of catalysts. There must be proper connections, temperatures and unleaded fuel. The process of replacement includes heating the engine, disconnection, unscrewing and installation of the sensor.