What is the construction and purpose of lambda sensors and O2 sensors?

Lambda sensors and O2 sensors are measuring elements mounted in the exhaust system, most often in the manifold, exhaust pipe, or near the catalytic converter. A typical sensor consists of a body with a thread, a measuring part, a cable, and an electrical connector. Their purpose is to read the oxygen content in exhaust gases and transmit data to the engine control unit. Depending on the version, they can operate as control or diagnostic sensors.

What are lambda sensors and O2 sensors used for?

Lambda sensors and O2 sensors are used to control exhaust gas composition and correct the air-fuel mixture. Thanks to them, the control unit can maintain proper combustion, reduce fuel consumption, and support the effective operation of the catalytic converter. Their operation also affects idle stability and engine response to load. Incorrect readings can cause emission errors, poorer dynamics, and problems with exhaust system diagnostics.

What role does the lambda sensor socket play?

The lambda sensor socket is a threaded mounting point made in an exhaust system component. It serves to stably seat the sensor in a place where exhaust flow allows for accurate oxygen content measurement. Its condition is important for connection tightness, proper tightening, and the safety of the sensor cable. A damaged thread or improper cable positioning can hinder installation and subsequent service.

How to choose the right lambda sensor for a specific car?

It is best to compare the OEM part number, interchangeable numbers, fuel type, and mounting location before or after the catalytic converter. It is also worth checking the plug type, number of wires, and compatibility with the engine version. If the car has several equipment variants, verification by VIN will be helpful.

What symptoms indicate a problem with a lambda sensor or O2 sensor?

Most often, rough engine operation, higher fuel consumption, poorer throttle response, and a "check engine" light appear. There may also be an increase in exhaust emissions and errors related to mixture correction or catalytic converter efficiency. Symptoms should be confirmed by computer diagnostics and live parameter monitoring.

What should be paid attention to when installing a used lambda sensor?

Before installation, you must check the condition of the thread, cable, shield, and electrical connector. It is also important to route the harness correctly away from very hot components and match the part to the specific mounting position. If necessary, it is also worth checking the cooperating exhaust system gaskets: tightness and engine efficiency.

Lambda probes and O2 sensors

At Global Parts, we offer a wide selection of original used car parts, including lambda sensors and O2 sensors for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Our lambda sensors and O2 sensors undergo quality control to ensure you receive a top-quality product.

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NOx Sensor Mercedes W213 W447 W910 Oxygen Lambda Sensor Diesel OM654 A0009054714

€51.95

Free delivery: Sep 24 – 29

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Part no. A0065422018

Lambda Sensor Mercedes W204 W212 Oxygen Sensor Lambda Probe A0065422018

€42.95

Free delivery: Sep 24 – 29

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Part no. 0075426418

Mercedes W205 W246 Lambda Oxygen Sensor Probe Hybrid Engine 0075426418

€23.95

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If paid before 14:00

Part no. A0009053705

Mercedes W906 Gas Exhaust Temperature Sensor A0009053705

€23.95

Free delivery: Sep 24 – 29

If paid before 14:00

Part no. A2114404805

Mercedes W211 C219 Exhaust Temperature Sensor Particulate Filter A2114404805

€23.95

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Part no. 0005428004

Mercedes W205 Oxygen Lambda Sensor Exhaust 0005428004

€23.95

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Mercedes W164 Exhaust Gas Temperature Sensor Pipe Line A0051539028

€23.95

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Part no. 227701177R-3

Mercedes W176 W447 Exhaust Pressure Sensor DPF OM626 Diesel 227701177R

€56.95

Free delivery: Sep 24 – 29

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Part no. AG9112B591BB

Ford Mondeo MK4 S-MAX Galaxy MK3 Exhaust Gas Temperature Sensor AG9112B591BB

€23.95

Free delivery: Sep 24 – 29

If paid before 14:00

Part no. A0009058311

Mercedes W205 OM656 NOX Lambda Sensor Catalytic Converter A0009058311

€294.95

Free delivery: Sep 24 – 29

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Part no. A0009052900

Mercedes-Benz S-Class W221 NOX Sensor Lambda Probe Control Unit A0009052900

€47.95

Free delivery: Sep 24 – 29

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Part no. A0105422618

Mercedes W176 W242 Lambda Sensor Oxygen Probe Diesel A220 CDI A0105422618

€108.95

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Temperature Sensor Mercedes W176 OM607 Diesel Exhaust Flue Sensor 226404367R

€23.95

Free delivery: Sep 24 – 29

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Part no. A2139051115

Door Pressure Sensor Mercedes W205 W213 C253 Unit Front Left N/S A2139051115

€32.95

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Part no. A0009057809

Exhaust Pressure Sensor Mercedes W177 W246 M260 Petrol DPF A0009057809

€23.95

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Part no. A0009050805

DPF Sensor Mercedes X253 OM651 Particulate Filter Temperature Sensor A0009050805

€42.95

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Part no. A0009058904

Mercedes X253 OM651 Catalytic Converter Sensor Temperature Exhaust Sensor

€23.95

Free delivery: Sep 24 – 29

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Part no. A0005428004

Mercedes W205 W213 Lambda Probe Oxygen Exhaust Sensor Wiring A0005428004

€23.95

Free delivery: Sep 24 – 29

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Part no. A0071536728

Exhaust Temperature Sensor Mercedes W204 W212 OM651 Diesel Engine A0071536728

€23.95

Free delivery: Sep 24 – 29

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Part no. A0005427912

Mercedes C118 W177 M282 Petrol Exhaust Lambda Oxygen Sensor A0005427912

€94.95

Free delivery: Sep 24 – 29

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Lambda Sensor Mercedes W204 W212 Oxygen Sensor Lambda Probe A0065422218

€23.95

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Part no. A0005421300

Mercedes W205 M176 Lambda Probe Sensor Left Right N/O/S A0005421300

€42.95

Free delivery: Sep 24 – 29

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Part no. A0005421312

Mercedes W206 Sonde Lambda Oxygen Sensor 4 Pin A0005421312

€51.95

Free delivery: Sep 24 – 29

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Part no. A0015403817

Mercedes-Benz A-Class W168 Lambda Oxygen Sensor Probe Petrol A0015403817

€23.95

Free delivery: Sep 24 – 29

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Lambda Probe Mercedes W204 W205 W213 M278 Petrol Oxygen Sensor A0075426418

€23.95

Free delivery: Sep 24 – 29

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Temperature Sensor Mercedes W205 W221 Exhaust Gas Lambda Probe A0019052900

€42.95

Free delivery: Sep 24 – 29

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Exhaust Sensor Mercedes W177 W247 OM654 Gas Temperature Sensor A0009051613

€66.95

Free delivery: Sep 24 – 29

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Temperature Sensor Mercedes W164 W211 OM642 Exhaust Gas A0051537928

€23.95

Free delivery: Sep 24 – 29

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Temperature Sensor Mercedes W205 W223 C253 Exhaust Gas Control A0009050713

€37.95

Free delivery: Sep 24 – 29

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Gas Temperature Sensor Mercedes W166 OM651 Exhaust Sensor Wiring A0009050332

€23.95

Free delivery: Sep 24 – 29

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Mercedes W164 W211 W221 OM642 Front NOX Sensor L=615MM SiemensVDO A0035428818

€47.95

Free delivery: Sep 24 – 29

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Mercedes W177 Diesel OM654 Exhaust Gas Recirculation Pressure Sensor A0009057113

€32.95

Free delivery: Sep 24 – 29

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Mercedes W906 W907 OM651 Diesel Exhaust Gas Temperature Sensor A0009053905

€32.95

Free delivery: Sep 24 – 29

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Mercedes W204 S204 W212 S212 NOX Lambda Probe Oxygen Sensor Control A0075420018

€56.95

Free delivery: Sep 24 – 29

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Mercedes W205 GLC C253 OM642 OM651 Exhaust Gas Temperature Sensor A0009058705

€32.95

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Mercedes W177 W247 AMG Gas Exhaust Temperature Probe Sensor A0009057609

€23.95

Free delivery: Sep 24 – 29

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Mercedes W176 Exhaust Pressure Sensor DPF Particulate Filter Sensor 227702184R

€23.95

Free delivery: Sep 24 – 29

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Mercedes-Benz W164 W204 W211 W212 W221 Petrol Lambda Sensor Probe A0045420818

€23.95

Free delivery: Sep 24 – 29

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Lambda Sensor Mercedes W169 W245 Oxygen Probe A0015420718

€32.95

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Mercedes A238 M276 Petrol Exhaust Lambda Probe Oxygen Sensor A0005421600

€23.95

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Mercedes W168 Vaneo W414 Lambda Oxygen Sensor Probe Petrol A0015403717

€23.95

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€37.95

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Mercedes GLE 250 W166 Diesel OM651 Temperature Sensor Catalytic Converter

€37.95

Free delivery: Sep 24 – 29

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Mercedes W906 Lambda Oxygen Sensor Probe A0009059603

€32.95

Free delivery: Sep 24 – 29

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Mercedes W204 W447 Exhaust Temperature Sensor OM642 Diesel Engine Filter

€32.95

Free delivery: Sep 24 – 29

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Exhaust Temperature Sensor Mercedes W176 W246 OM607 Diesel Engine Filter Wiring

€23.95

Free delivery: Sep 24 – 29

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Part no. 226401704R

Exhaust Temperature Sensor Mercedes W176 W246 OM607 Diesel Engine Filter Wiring

€42.95

Free delivery: Sep 24 – 29

If paid before 14:00

Part no. A0009059905

Mercedes C253 W213 C238 W907 Exhaust Gas Temperature Sensor A0009059905

€23.95

Free delivery: Sep 24 – 29

If paid before 14:00

Part no. A0009055010

Mercedes C207 W212 M276 V6 Petrol Engine NOx Lambda Sensor A0009055010

€189.95

Free delivery: Sep 24 – 29

If paid before 14:00

Part no. A0009059007

Mercedes Sprinter W910 W447 OM651 Exhaust Gas Temperature Sensor A0009059007

€32.95

Free delivery: Sep 24 – 29

If paid before 14:00

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