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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BMW F80 M3 F82 F83 M4 Lambda Probe Oxygen Monitor Sensor 7848483

£42.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009056404

Mercedes W212 OM651 Diesel Exhaust Gas Temperature Sensor A0009056404

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009059205

Mercedes Sprinter W906 OM651 Diesel Gas Exhaust Temperature Sensor A0009059205

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03L906262B

Audi Q3 SE TDI Exhaust Lambda Probe Oxygen Sensor 03L906262B

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8514730

BMW 3 5 X6 Series F10 F30 F31 E71 N57 N57N Temperature Sensor Exhaust 8514730

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009055305

Mercedes Vito W447 Diesel OM651 Exhaust Gas Temperature Sensor EGT A0009055305

£32.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7518495

BMW 5 7 Series E60 E61 E65 E66 Regulating Lambda Probe M54 Petrol 7518495

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8507629

BMW F30 F32 LCI 330d 430d N57N Exhaust Temperature Sensor 8507629

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8507790

BMW F30 F32 LCI 335dX 435dX N57Z Exhaust DPF Filter Backpressure Line Pipe

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7596908

Lambda Sensor BMW X5 E70 LCI F10 F20 F30 N55 Oxygen Probe L= 520MM 7596908

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. GK21-5E145-AD

Ford Transit Custom Mk1 Lambda Sensor Oxygen Lambda Probe 2.0 Diesel GK215E145AD

£42.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0095425618

Mercedes W156 W204 W246 W463 W636 Oxygen Lambda Sensor A0095425618

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7848486

BMW 3 4 Series F80 M3 F82 M4 Lambda Monitor Sensor L=690MM 7848486

£47.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009059005

Mercedes W176 OM651 Diesel Exhaust Gas Temperature Sensor A0009059005

£47.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06K906262AT

Audi A3 8V S3 2.0 TFSI DJHA Exhaust Lambda Oxygen Sensor 06K906262AT

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7526262

BMW F01 F10 F11 Z4 E89 Monitor Sensor Lambda Probe Petrol 7526262

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06D906265

Audi A4 B7 2.0 TFSI Petrol Exhaust Oxygen Lambda Probe Sensor 06D906265

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7848487

BMW F80 M3 F82 F83 M4 Lambda Probe Oxygen Monitor Sensor 7848487

£37.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8570121

BMW X1 Series F48 MINI F55 F56 F60 Temperature Sensor L=1000 Exhaust 8570121

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8589844

Nox Sensor BMW F20 F21 F22 F23 LCI Lambda Oxygen Probe Diesel 8589844

£42.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0065422018

Lambda Sensor Mercedes W204 W212 Oxygen Sensor Lambda Probe A0065422018

£37.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0065424918

Mercedes W204 W212 Diesel Lambda Sensor Oxygen Probe A0065424918

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 07L906262S

Audi A4 B8 A5 8T Lambda Probe Oxygen Monitor Sensor 07L906262S

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009053603

NOX Sensor Mercedes W212 W176 W246 Lambda Probe Control Unit A0009053603

£85.95

Free delivery: Jul 13

If paid before 14:00

Part no. 6Q0820539

Audi A4 B8 Air Conditioning Heater A/C Temperature Sensor Unit 6Q0820539

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 0281004221

Mercedes W205 Renault Lambda Probe Oxygen Sensor Bosch 0281004221

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0005423100

NOX Sensor Mercedes W213 X253 M274 Lambda Oxygen Probe A0005423100

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7544654

Lambda Sensor BMW E60 E61 523i 525i Monitor Sensor L= 430MM PETROL N52 7544654

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0005422404

Lambda Sensor Mercedes C118 W177 W247 M260 Oxygen Probe A0005422404

£47.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0071536128

Mercedes W204 W203 W169 W212 W245 W906 Exhaust Pressure Sensor DPF A0071536128

£23.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06F906262AC

Volkswagen Golf 1K Exhaust Lambda Sensor 06F906262AC

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 227702184R

Mercedes W176 Exhaust Pressure Sensor DPF Particulate Filter Sensor 227702184R

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009052709

Mercedes W447 Lambda Oxygen NOX Sensor A0009052709

£61.95

Free delivery: Jul 13

If paid before 14:00

Part no. rhd-A0009059703

Mercedes W166 W205 W213 W238 W292 W447 W906 Nox Oxygen Sensor A0009059703

£61.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8509030

BMW 3 5 Series E90 LCI F10 330d 530d N57 Diesel Oxygen Sensor Lambda 8509030

£32.95

Free delivery: Jul 13

If paid before 14:00

Part no. 07L906265F

Audi A5 S5 8T A6 C6 A3 8P Sonde Lambda Oxygen Sensor 07L906265F

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0005428104

Mercedes W177 Lambda Sensor Downstream Of Catalytic Converter A0005428104

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7848482

BMW 3 4 Series F80 M3 F82 F83 M4 Lambda Probe Oxygen Monitor Sensor 7848482

£27.95

Free delivery: Jul 13

If paid before 14:00

Part no. rhd-3438782

BMW X3 Series E83 LCI 2.5 si 3.0 si N52N Regulating Lambda Probe 1100MM 3438782

£61.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8K0907807J

Audi A5 8T 2.0 TDI CNHA Oxygen NOX Sensor Module Control Unit 8K0907807J

£66.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06J906262AA

Lambda Probe Audi Volkswagen Seat Skoda 2.0 TFSI Pre Catalyst 6 Pin 06J906262AA

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009059705

Mercedes C205 Diesel Exhaust Gas Temperature Sensor EGT A0009059705

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7589475

BMW E82 E90 LCI F20 F30 F31 N55 Oxygen Sensor Petrol Lambda L=690MM 7589475

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009059603

Mercedes W906 Lambda Oxygen Sensor Probe A0009059603

£42.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0071536728

Exhaust Temperature Sensor Mercedes W204 W212 OM651 Diesel Engine A0071536728

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03L906088BH

Audi Volkswagen Seat Skoda Exhaust Gas Temperature Sensor 03L906088BH

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 04E906262GH

VW Volkswagen Golf Mk8 Petrol Exhaust Lambda Oxygen Sensor 04E906262GH

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. rhd-7512982

BMW 5 6 7 Series E60 E63 E65 Sensor Sonda Lambda Exhaust Probe Black 7512982

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7544655

BMW E60 E60N E61 E61N E64N LCI E65 Lambda Monitor Sensor L= 380MM 7544655

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009057809-2

Exhaust Pressure Sensor Mercedes W177 W246 M260 Petrol DPF A0009057809

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009051132

Mercedes R172 OM651 Diesel Exhaust Gas Temperature Sensor A0009051132

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06J906262K

Lambda Probe Audi Volkswagen Seat 2.0 Petrol Oxygen Sensor 4 PIN 06J906262K

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 0071539628

EGT Mercedes W639 W211 Diesel OM642 Exhaust Gas Temperature Sensor A0071539628

£37.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06E906265R

Audi S5 8T 3.0 Petrol Exhaust Lambda Probe Oxygen Sensor 06E906265R

£23.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03C906262

Seat Ibiza 6J 1.2 MPI Lambda Sensor Exhaust Oxygen Sensor Cable 03C906262

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. rhd-A0071538828

Mercedes W211 W212 C219 OM642 Diesel Exhaust Gas Temperature Sensor A0071538828

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0045427318

Lambda Sensor Mercedes W164 W204 W211 Diesel CDI Oxygen Probe A0045427318

£23.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009058904

Mercedes X253 OM651 Catalytic Converter Sensor Temperature Exhaust Sensor

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8631393

Mini Cooper One F55 F56 F57 Exhaust Lambda Monitor Sensor Probe 8631393

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8R0906262

Audi A5 8T 2.0 TDI Lambda Sensor Oxygen Sensor 8R0906262

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7512567

BMW E60 E63 E65 Sensor Sonda Lambda Exhaust Probe Black 7512567

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03F906262B

VW Golf 6 Passat B7 1.6 TDi Diesel Engine CAYC Lambda Sensor Probe 03F906262B

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06F906262P

VW Volkswagen Golf 1K 2.0 TSI Petrol Exhaust Lambda Oxygen Sensor 06F906262P

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. rhd-7809160

BMW X5 X6 Series E70 E71 M57N2 Exhaust Temperature Sensor Diesel 7809160

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8582026

NOX Sensor BMW G20 G21 G30 G31 Lambda Oxygen Probe 8582026

£37.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7537995

BMW 1 Series E87 Sonda Monitor Lambda Sensor Probe L=270MM 7537995

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. KV615L248AC

Ford Transit Connect Mk2 1.5 TDCI Lambda Probe NOX Sensor Control KV61-5L248-AC

£260.95

Free delivery: Jul 13

If paid before 14:00

Part no. 04L906088DB

Audi Q3 8U A3 8V Exhaust Gas Temperature Sensor Wiring 04L906088DB

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. GK21-5E145-AE

Ford Transit Mk8 Oxygen Sensor Lambda Probe 2.0 EcoBlue Diesel GK21-5E145-AE

£61.95

Free delivery: Jul 13

If paid before 14:00

Part no. A2601500400

Mercedes W177 W247 M260 Diesel Exhaust Gas Temperature Sensor A2601500400

£23.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03E906262C

VW Polo Audi A4 B8 Skoda Fabia NOX Sensor Lambda Oxygen Probe 03E906262C

£23.95

Free delivery: Jul 13

If paid before 14:00

Part no. 04L907805DF

Volkswagen Tiguan 5N Audi Q2 GA NOX Sensor Diesel Lambda Probe 04L907805DF

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0045428618

Mercedes W203 W204 W212 Lambda Sensor Petrol Oxygen Probe A0045428618

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03L906088DR

Audi A4 B8 A5 8T Diesel Exhaust Gas Temperature Sensor After DPF 03L906088DR

£32.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7794634

BMW E60 E61 E90 E91 LCI F10 Lambda Probe Oxygen Sensor Control Unit 7794634

£35.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009054914

Mercedes Sprinter W910 Lambda Oxygen NOX Sensor A0009054914

£94.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8659971

Lambda Sensor BMW G20 G21 G30 G31 Exhaust Oxygen Sensor Cable Probe 8659971

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. F1F1-12B591-CB

Ford Transit Focus Mk3 1.5 TDCI Diesel Exhaust Temperature Sensor F1F1-12B591-CB

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 0281004148

VW Audi Diesel Lambda Sensor Oxygen Probe 0281004148

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 6M51-12B591-CA

Ford Transit Focus Mk3 1.5 TDCI Diesel Exhaust Temperature Sensor 6M51-12B591-CA

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7521705

BMW 5 6 7 Series E60 E63 E64 E65 E66 Sensor Lambda Probe Grey Petrol 7521705

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 07L906265

Audi S5 8T 4.2 FSI CAUA Petrol Exhaust Oxygen Lambda Probe Sensor 07L906265

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7589968

BMW E90 E91 Lambda Sensor Petrol Exhaust Lambda Probe Sensor Wiring 7589968

£23.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009057809

Exhaust Pressure Sensor Mercedes W177 W246 M260 Petrol DPF A0009057809

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 07L906262

Oxygen Sensor Audi A4 B8 S5 8T Exhaust Lambda Probe Unit 07L906262

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 7836451

BMW 5 6 Series E60 M5 E63 E64 M6 Lambda Monitor Sensor L=370MM 7836451

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0019050600

Mercedes W204 W212 OM642 Diesel Exhaust Gas Temperature Sensor A0019050600

£23.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8659884

Mini Cooper F55 F56 F60 Regulating Lambda Probe Petrol Engine 8659884

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0051539028

Mercedes W164 Exhaust Gas Temperature Sensor Pipe Line A0051539028

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8582024

NOx Sensor BMW F22 F23 LCI X5 F15 X6 F16 Lambda Oxygen Probe 8582024

£70.95

Free delivery: Jul 13

If paid before 14:00

Part no. A0009052106

Mercedes Vito W447 OM651 Exhaust Gas Temperature Sensor A0009052106

£37.95

Free delivery: Jul 13

If paid before 14:00

Part no. 06K906262

Audi Q3 Exhaust Lambda NOx Oxygen Sensor 2.0 TFSI CULB Petrol 06K906262

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 059906262J

Volkswagen Touareg 3.0 TDI Diesel Line Lambda Probe Oxygen Sensor 059906262J

£18.95

Free delivery: Jul 13

If paid before 14:00

Part no. 0258027015

BMW F10 Petrol Oxygen Sensor Exhaust Lambda 0258027015

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8589846

Exhaust NOx Sensor BMW X5 F15 F20 F21 LCI N47 N57 B47 Diesel L=915MM 8589846

£47.95

Free delivery: Jul 13

If paid before 14:00

Part no. 04L906088BD

Volkswagen VW Golf Mk7 Exhaust Gas Temperature Sensor 1.6 TDI 04L906088BD

£13.95

Free delivery: Jul 13

If paid before 14:00

Part no. 8686640

Exhaust Flap Motor BMW X5 G05 G20 Valve Actuator Flap Drive Petrol 8686640

£28.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03L906262A

VW Volkswagen Golf 6 Lambda Sensor Oxygen Probe 03L906262A

£32.95

Free delivery: Jul 13

If paid before 14:00

Part no. 03G906262A

Audi A3 8P 1.9 TDI Lambda Oxygen Exhaust Sensor Probe Cable Diesel 03G906262A

£13.95

Free delivery: Jul 13

If paid before 14:00

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