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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Renault Trafic Vauxhall Vivaro Lambda Sensor Exhaust Control Unit 8200406337

€23.95

Part no. 04E906262A

VW Volkswagen Golf Mk5 Petrol Exhaust Lambda Oxygen Sensor 04E906262A

€23.95

Part no. 04E906262AT

Audi A1 8X Lambda Oxygen Sensor Probe 1.4 TSI Petrol CZC CZCA 04E906262AT

€28.95

Part no. 7587129-1

BMW E60 E61 E63 E64 E90 E91 E92 LCI NOX Sensor Petrol N53 7587129

€99.95

Part no. 03L906088DC

Volkswagen Crafter 2E Exhaust Temperature Sensor CKTB Diesle 2.0 03L906088DC

€32.95

Part no. A0085423018

Lambda Probe Mercedes C216 W204 W221 OM274 Catalytic Converter Lambda Sensor

€47.95

Part no. 04L906088AR

Skoda Octavia 5E 1.6 TDI Exhaust Gas Temperature Lambda Sensor 04L906088AR

€23.95

Part no. 022906262BG

Volkswagen Touareg 7L Lambda Sensor Oxygen Sensor Lambda Probe 3.2 022906262BG

€28.95

Part no. 9681852780

Peugeot 308 Lambda Sensor Diesel Oxygen Probe Exhaust Sensor 9681852780

€23.95

Part no. 1327549

Ford Focus Mk3 Lambda Sensor Oxygen Sensor 1.6 Petrol 3M51-9G444-BC

€23.95

Part no. 04E906262AB

Audi Volkswagen Seat Skoda Exhaust Lambda Probe Oxygen Sensor 04E906262AB

€23.95

Part no. A0009053705

Mercedes W906 Gas Exhaust Temperature Sensor A0009053705

€23.95

Part no. 06K906262AE

Audi A1 8X 1.8 TFSI DAJB Petrol Exhaust Lambda Oxygen Sensor Probe 06K906262AE

€23.95

Part no. 4G0907807H

Audi A6 C7 A7 4G8 NOx Sensor Lambda Probe Sender 3.0 TDI Diesel CRTE 4G0907807H

€51.95

Part no. 4H0906262H

Audi S6 C7 S7 4G Lambda Probe Oxygen Sensor 5 Pin Cyl. 5-8 4.0 Petrol 0258027199

€28.95

Part no. 80A906262

Audi Q5 FY 8R Exhaust Lambda Probe Oxygen Sensor 80A906262

€23.95

Part no. A0025402317

Smart Fortwo 450 Roadster 452 Exhaust Lambda Probe Sensor Wiring A0025402317

€23.95

Part no. 2281356

Fiesta Mk8 Lambda Probe Oxygen Sensor Unit 1.5 Petrol K1BY-9Y460-AB

€66.95

Part no. 1773164

Ford B-Max Fiesta Mk7 Lambda Oxygen Sensor 1.0 EcoBoost SFJA CV6A-9G444-AA

€23.95

Part no. 04L906088DC

Volkswagen Transporter T6 Exhaust Gas Temperature Probe 2.0 TDI 04L906088DC

€32.95

Part no. JB3G-5L239-AB

Ford Ranger Wildtrak Mk6 Diesel Particulate Matter NOX Lambda Sensor JB3G5L239AB

€75.95

Part no. A0009050713

Temperature Sensor Mercedes W205 W223 C253 Exhaust Gas Control A0009050713

€37.95

Part no. 7589146

Lambda Sensor BMW F10 F11 F01 F02 Petrol N52N N53 Lambda Probe L=575mm

€23.95

Part no. 4M0906261J

Audi Q7 4M Lambda Sensor Oxygen Sensor Lambda Probe 3.0 TDI 4M0906261J

€94.95

Part no. 05L907807BB

Audi A2 GA 2.0 TDI DTTC Oxygen NOX Sensor Module Control Unit 05L907807BB

€94.95

Part no. 80A907807AG

Audi Q5 FY NOx Sensor Rear Lambda Probe Sensor Exhaust Temperature 80A907807AG

€132.95

Part no. 8508071

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

€23.95

Part no. 4M0907807BD

Audi Q7 4M Lambda Sensor NOx Oxygen Sensor Lambda Probe 3.0 TDI 4M0907807BD

€132.95

Part no. 5Q0907543

Volkswagen Golf 8 Interior Vent Air Temperature Sensor 5Q0907543

€23.95

Part no. 46349778

Fiat Ducato NOx Oxygen Sensor 2.2 Multijet Diesel 46349778

€142.95

Part no. A0065422718

Mercedes W204 C207 W212 M271 Lambda Sensor Oxygen Probe A0065422718

€23.95

Part no. 07K906262J

Audi RS3 8Y 2.5 TFSI Exhaust Lambda Probe Oxygen Sensor 07K906262J

€89.95

Part no. 2550612

Ford Fiesta Mk8 Lambda Probe Oxygen Sensor Unit 1.5 Petrol K1BY-9G444-AB

€28.95

Part no. 07K906262G

Audi RS3 8YS Q3 2.5 TFSI Exhaust Lambda Probe Oxygen Sensor 07K906262G

€85.95

Part no. 4M0906088AN

Audi A4 B9 A5 F5 A6 C7 A7 4G Exhaust Gas Temperature Sensor 3.0 TDI 4M0906088AN

€23.95

Part no. 8507629

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

€23.95

Part no. 7539136

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

€28.95

Part no. M8D2-12B591-BB

Range Rover Evoque L551 Exhaust Gas Temperature Sensor 2.0 Diesel M8D2-12B591-BB

€47.95

Part no. GX53-9G444-BB

Land Rover Discovery Sport L550 Lambda Oxygen Sensor 2.0 Petrol GX53-9G444-BB

€23.95

Part no. 4H0906265C

Audi S6 C7 S7 4G Lambda Probe Oxygen Sensor 4 Pin Cyl. 5-8 4.0 Petrol 4H0906265C

€28.95

Part no. 03C906262AK

VW Golf Mk6 Audi A3 8P 1.4 TSI NOx Sensor Lambda Oxygen Probe 03C906262AK

€23.95

Part no. 059906088CN

Audi A4 B9 A6 C7 A7 4G Exhaust Gas Temperature Sensor 3.0 TDI Diesel 059906088CN

€23.95

Part no. 4H0906262G

Audi S6 C7 S7 4G Lambda Probe Oxygen Sensor 5 Pin Cyl. 1-4 4.0 Petrol 0258027199

€28.95

Part no. 04L906262E

Volkswagen Transporter T6 Lambda Oxygen Sensor 2.0 TDI 04L906262E

€23.95

Part no. 226A42455R

Opel Vivaro B 1.6 CDTI Lambda Probe Oxygen Sensor 226A42455R

€23.95

Part no. 03C906262AL

Audi A3 8P Golf Mk6 NOX Sensor Lambda Probe Oxygen Sensor 1.4 TSI 03C906262AL

€23.95

Part no. K8D2-9G444-AC

Land Rover Discovery Sport L550 Lambda Oxygen Sensor 2.0 Petrol K8D2-9G444-AC

€32.95

Part no. 04L907805N

Volkswagen Caddy Mk4 Sharan Mk2 NOX Sensor Module 2.0 TDI 5WK96621K 04L907805N

€89.95

Part no. 05E906051P

Seat Ibiza Mk5 VW Golf Mk8 Exhaust DPF Pressure Sensor 05E906051P

€23.95

Part no. GK21-12B591-EA

Ford Transit Custom Exhaust Temperature Sensor Probe 2.0 EcoBlue GK21-12B591-EA

€89.95

Part no. 7835884

BMW 5 6 Series E60 M5 E63 E64 M6 Lambda Probe Cable Bracket 7835884

€23.95

Part no. 8J0971830

Audi TT Mk2 8J Lambda Probe Connector Wiring Cable Guide Cover Housing 8J0971830

€23.95

Part no. GB3G-5E145-AF

Ford Ranger Wildtrak Mk6 Lambda Probe Oxygen Sensor 2.0 ECOBLUE GB3G-5E145-AF

€61.95

Part no. 7P6971804A

Volkswagen Touareg 7P NOX Sensor Unit Bracket Holder Retainer 7P6971804A

€23.95

Part no. 8W0907807BC

Audi A4 B9 A5 F5 NOx Sensor 2.0 TDI Diesel 8W0907807BC

€355.95

Part no. 8570589

BMW 1 X1 Series F20 F21 LCI F48 Holder Bracket Lambda Probe 8570589

€23.95

Part no. 05L906088Q

Audi A5 F5 Skoda Karoq Exhaust Gas Temperature Sensor 2.0 TDI Diesel 05L906088Q

€66.95

Part no. C1BY-9Y460-AB

Ford Fiesta Mk7 Lambda Probe Oxygen Sensor 1.6 Ecoboost Engine C1BY-9Y460-AB

€37.95

Part no. 1KO973804

Volkswagen Golf 5G Exhaust Lambda Oxygen Sensor 2.0 Petrol BlueMotion 1KO973804

€23.95

Part no. A2601500400

Mercedes W177 W247 M260 Diesel Exhaust Gas Temperature Sensor A2601500400

€23.95

Part no. 4G0907807AN

Audi A6 Allroad A7 4G8 NOX Lambda Sensor Probe Oxygen Sensor 4G0907807AN

€279.95

Part no. 4G0906088J

Audi A6 C7 2.0 TDI Diesel Engine Sensor Sonda Lambda Exhaust Probe 4G0906088J

€23.95

Part no. GK21-9Y460-AB

Ford Tourneo Custom Oxygen Lambda Sensor Unit 2.0 Diesel Engine GK21-9Y460-AB

€32.95

Part no. 4G0906088R

Audi Q5 8R 2.0 TDI Diesel Engine Sensor Sonda Lambda Exhaust Probe 4G0906088R

€23.95

Part no. AV61-9D375-BA

Ford Kuga C394 Mk1 Lambda Oxygen Sensor Unit 2.0 TDCi Diesel AV61-9D375-BA

€23.95

Part no. A1774902502

Mercedes W177 W247 DPF Exhaust Pressure Sensor Bracket Mount Holder A1774902502

€23.95

Part no. 8644371-1

BMW F20 F21 F30 LCI F32 Exhaust Lambda Oxygen Sensor Petrol 8644371

€42.95

Part no. A0075420018

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

€56.95

Part no. 03G906088BA

Audi A4 B7 A6 C6 Diesel Engine Exhaust Gas Temperature Sensor 03G906088BA

€32.95

Part no. 7544655

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

€23.95

Part no. 8570229-1

Mini F54 F60 BMW F40 F45 Diesel B37 Oxygen Sensor Exhaust L=850 Lambda 8570229

€37.95

Part no. FW93-12B591-DB

Range Rover Sport L494 Exhaust Temperature Sensor 3.0 SDV6 Diesel FW93-12B591-DB

€47.95

Part no. BA5A-9Y460-AA

Ford Focus Mk3 Kuga Lambda Oxygen Sensor 2.0 Petrol BA5A-9Y460-AA

€23.95

Part no. 1351337

Ford Focus Mk3 Mk2 Lambda Oxygen Sensor 1.6 Petrol 3M51-9F472-BC

€23.95

Part no. FC4A-5L200-CA

Ford Fiesta Mk8 DPF Exhaust Pressure Sensor ST 1.5 EcoBoost FC4A-5L200-CA

€42.95

Part no. 7537995

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

€23.95

Part no. 7P5906262

Porsche Cayenne 92A Lambda Oxygen Probe Sensor Petrol 7P5906262

€23.95

Part no. 1543768

Ford Transit Courier Exhaust Gas Temperature Sensor 1.5 TDCi 6M51-12B591-DA

€56.95

Part no. 46350838

Vauxhall Movano C Exhaust Gas Temperature Sensor Sender 46350838

€37.95

Part no. 03L906262A-2

VW Volkswagen Golf Mk6 Lambda Sensor Oxygen Probe 1.6 TDI 03L906262A

€23.95

Part no. 04L906051F-1

Volkswagen Skoda Audi 2.0 TDI Diesel DPF Pipe Pressure Sensor 04L906051F

€23.95

Part no. 04L906261B

Volkswagen Transporter T6 Nox Lambda Sensor 2.0 TDI 04L906261B

€213.95

Part no. 9687160780

Ford Focus Mk3 Volvo S60 V60 Lambda Oxygen Sensor 1.6 TDCi 9687160780

€23.95

Part no. FPLA-9D375-AC

Jaguar XF X260 Lambda Probe Oxygen NOx Sensor 2.0 Diesel 204DTD FPLA-9D375-AC

€23.95

Part no. 036906262AA

Seat Ibiza 6J Mk4 Lambda Probe Oxygen Sensor 1.4 Petrol Engine 036906262AA

€23.95

Part no. GH22-5J299-AB

Land Rover Discovery Sport L550 NOx Oxygen Sensor 2.0 Diesel GH22-5J299-AB

€75.95

Part no. K8D2-12A610-B

Range Rover Evoque L551 Nox Sensor Rear Bracket Mount Holder K8D2-12A610-BD

€23.95

Part no. 07L906262R

Audi TT 8J Exhaust Gas Temperature Lambda Probe Sensor 2.5 TFSI 07L906262R

€37.95

Part no. AE81-9G444-BB

Ford Fiesta Mk7 Lambda Oxygen Sensor Probe 1.4 Duratec SPJC Petrol AE81-9G444-BB

€23.95

Part no. 07L906265F

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

€23.95

Part no. A2139051115

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

€32.95

Part no. 03L906088JK

VW Volkswagen Crafter 2E Amarok 2H Exhaust Gas Temperature Sensor 03L906088JK

€28.95

Part no. 4M0906088AL

Audi A4 B9 A5 F5 A6 C7 Exhaust Gas Temperature Sensor 3.0 TDI 4M0906088AL

€23.95

Part no. P8D2-5J299-AA

Land Range Rover Evoque L551 Lambda Oxygen Sensor 2.0 P8D2-5J299-AA

€47.95

Part no. F1F1-9Y460-BA

Ford Focus Mk3 Lambda Oxygen Sensor Probe Sender 1.5 Diesel F1F1-9Y460-BA

€23.95

Part no. 07L906262K

Audi S5 8T Exhaust Lambda Probe Oxygen Sensor Wiring Unit 4.2 V8 CAUA 07L906262K

€23.95

Part no. 8043677

BMW F90 M5 F91 F92 M8 Regulating Lambda Probe Petrol Oxygen Sensor 8043677

€56.95

Part no. 5QF907816B

Skoda Karoq NOx Sensor Control Unit Retainer Bracket Housing Holder 5QF907816B

€23.95

Part no. 9454706

BMW F45 F48 LCI F39 Mini F60 LCI Lambda Monitor Probe Sensor Petrol B38X 9454706

€56.95

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