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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Lambda Sensor BMW Z4 E36 E46 M3 S54 Petrol Oxygen Exhaust Control Unit 1743994

£18.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7607834-1

BMW F20 F21 F30 F32 Lambda Probe Bracket N20 Oxygen Sensor Mount 7607834

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7539124

BMW 5 6 Series E60 E61 E64 E65 620MM Sensor Lambda Probe Grey Petrol 7539124

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7539126

BMW 5 6 7 Series E60 E61 E64 E65 450MM Sensor Lambda Probe Grey Petrol 7539126

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 1405324

BMW Z3M E36 E46 M3 Exhaust Oxygen Sensor L=750MM 1405324

£18.95

Free delivery: Oct 29

If paid before 14:00

Part no. 8686978

Lambda Sensor BMW F70 F74 U06 U10 U12 Probe Oxygen Monitor 8686978

£28.95

Free delivery: Oct 29

If paid before 14:00

Part no. 9454704

BMW F36 G20 G22 G80 G82 LCI Lambda Probe Sensor Petrol 9454704

£94.95

Free delivery: Oct 30 – Nov 6

If paid before 14:00

Part no. 8686977

BMW F70 F74 F78 U06 Active Tourer U11 Sonde Lambda Probe Oxygen Sensor 8686977

£37.95

Free delivery: Oct 29

If paid before 14:00

Part no. 9215951-1

BMW E90 E91 E92 E93 Battery Cable Negative Minus Pole IBS 9215951

£94.95

Part no. 8657235

BMW F90 M5 F92 M8 X5 G05 S63M N63M Oxygen Lambda Monitor Sensor Probe 8657235

£42.95

Free delivery: Oct 29

If paid before 14:00

Part no. 8595102

DPF Sensor BMW G20 G30 G12 B57 Diesel Particle Filter Oxygen Probe L=460 8595102

£18.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7512002

BMW E60 E63 E64 E65 450MM Sensor Lambda Probe Grey Petrol 7512002

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7585924

Lambda Probe Bracket BMW E87 LCI E90 E91 E92 N43 Support Holder 7585924

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 8570829

Lambda Probe Bracket BMW F10 LCI G20 G21 G30 Oxygen Sensor Mount Holder 8570829

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7566156

Lambda Probe Bracket BMW E81 E82 E88 E90 Petrol N43 N46N Probe Mount 7566156

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7539136

BMW F01 F02 F03 Rolls-Royce Ghost RR4 Wraith RR5 N74 V12 Lambda Sensor 7539136

£23.95

Free delivery: Oct 29

If paid before 14:00

Part no. 5A34C60-1

BMW F40 Oxygen Air Quality Temperature Sensor 5A34C60

£18.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7567379

BMW E81 E82 E87 LCI E88 E90 E91 Lambda Probe Cable Bracket Mount Holder 7567379

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 1406622

Lambda Sensor BMW M3 E46 Z4 M3 E85 E86 Z3M E36 Petrol S54 L= 935 mm 1406622

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7530290

Lambda Probe Holder BMW E81 E87 E90 E91 N46 Bracket Petrol 7530290

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7548283

Lambda Probe Bracket BMW E81 E87 E90 E91 E92 Petrol Support Holder 7548283

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 1742051

BMW E36 E38 E39 Lambda Sensor Probe 580MM M52 M54 M62 M73 Petrol Engine 1742051

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 8513997

BMW F10 F20 F22 F30 F32 Diesel B47 Bracket Sensor Holder Exhaust Probe 8513997

£13.95

Free delivery: Oct 29

If paid before 14:00

Part no. 7539125

BMW 3 5 6 Series E60 E61 E63 E90 E92 M3 LCI Petrol Lambda Probe Black 325mm

£18.95

Free delivery: Oct 29

If paid before 14:00

Part no. 6PN358307

BMW E87 E90 NOX Oxygen Sensor Unit Petrol Engine 6PN358307

£70.95

Free delivery: Oct 29

If paid before 14:00

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Exhaust Temperature Sensor BMW E60 E61 E87 LCI E90 N47 Exhaust Wiring 7806254

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Lambda Sensor BMW F20 F21 F30 F31 LCI Petrol Oxygen Probe Exhaust 8631047

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BMW 3 5 7 Series E46 E60 E61 E65 Regulating Lambda Probe Petrol L=570MM 7503441

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BMW 3 5 6 Series E60 E61 E63 E64 E90 E91 E92 LCI NOX Sensor Petrol N53 7587129

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BMW 5 6 Series E60 M5 E63 M6 Temperature Sensor Exhaust Manifold 7836452

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NOx Sensor BMW E81 E87 LCI E90 E91 E92 Petrol N43 Control Unit 7587130 5WK96610L

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BMW F10 F11 F01N F02N E70N F15 E71 F16 Exhaust Temperature Sensor 8508071

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BMW E46 Exhaust Lambda Monitor Sensor Probe 7506531

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