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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Audi Q2 GA Lambda Oxygen Exhaust Sensor Probe Cable 05E906262H

€51.95

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Part no. 04L907805L

Audi Q3 8U 2.0 TDI CUWA Exhaust NOX Lambda Oxygen Sensor 04L907805L

€56.95

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Part no. 04E906262BG

Volkswagen Golf Mk7 Audi A3 8V Petrol Lambda Oxygen Sensor 1.2 TSI 04E906262BG

€23.95

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Part no. 059906262B

Audi Q7 4L Volkswagen Touareg Lambda Oxygen Sensor Probe Cable Diesel 059906262B

€23.95

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Part no. 022906265A

Audi TT 8N 3.2 VR6 Quattro Lambda Probe Sensor Pre Catalyst Cyl 4-6 022906265A

€61.95

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Part no. 04L906088

Audi A3 8V 2.0 TDI Exhaust Gas Temperature Sensor EGT 04L906088

€23.95

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Part no. 059906088DR

Audi A6 C8 Q7 4M Diesel Exhaust Gas Temperature Sensor 3.0 TDI 059906088DR

€32.95

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Part no. 04L906088EA

Audi Q3 8U 2.0 TDI CUWA Exhaust Gas Temperature Sensor 04L906088EA

€23.95

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Part no. 07L906262F

Audi A8 D3 Exhaust Gas Temperature Lambda Probe Oxygen Sensor 07L906262F

€23.95

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Part no. 07L906262B

Audi A8 D3 Exhaust Gas Temperature Lambda Probe Oxygen Sensor 07L906262B

€23.95

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Part no. 06F906265

Audi S5 8T Exhaust Lambda Probe Oxygen Sensor 06F906265

€28.95

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Part no. 8W0906265AQ

Audi A4 B9 NOX Sensor Lambda Oxygen Probe 8W0906265AQ

€32.95

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Part no. 8W0906265AC

Audi A5 F5 Q5 FY Lambda Probe Oxygen Monitor Sensor 8W0906265AC

€28.95

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Part no. 06F906262N

Lambda Sensor Audi A4 B8 A5 8F 2.0 TFSI Exhaust Oxygen Control 06F906262N

€23.95

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Part no. 070906262B

Audi A4 B8 3.0 TDI Lambda Probe Oxygen Sensor 070906262B

€23.95

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Part no. 03G906262A

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

€23.95

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Part no. 059906088Q

Audi A4 B8 3.0 TDI Diesel Exhaust Gas Temperature Sensor 059906088Q

€28.95

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Part no. 05L907807BB

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

€94.95

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Part no. 059906088CP

Audi A4 B8 A6 C7 A7 4G Exhaust Gas Temperature Sensor 3.0 TDI Diesel 059906088CP

€23.95

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Part no. 059906051E

Audi A6 C7 A7 4G DPF Exhaust Pressure Sensor Unit Diesel 3.0 TDI 059906051E

€23.95

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Part no. 8W0906265S

Lambda Sensor Audi A4 B9 A5 F5 45 TFSI Oxygen Sensor Lambda Probe 8W0906265S

€47.95

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Part no. 4M0907807BC

Audi Q7 4M Q8 Mk1 VW Touareg Mk3 NOX Lambda Oxygen Sensor 4M0907807BC

€175.95

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Part no. 8W0906261C

Audi S5 F5 Oxygen Lambda NOX Sensor Unit 3.0 TDI Diesel Engine 8W0906261C

€132.95

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Part no. 8W0907807Q

Audi S5 F5 Oxygen Lambda NOX Sensor Unit 3.0 TDI Diesel Engine 8W0907807Q

€113.95

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Part no. 06H906262A

Audi A5 8T Engine Exhaust Oxygen Lambda Sensor Catalytic 06H906262A

€23.95

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Part no. 8W0906265AR

Audi A6 C8 A7 4K Q7 4M Lambda Probe Oxygen Sensor 8W0906265AR

€47.95

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Part no. 04L906088DS

Audi Q3 8U 2.0 TDI CUWA Exhaust Gas Temperature Sensor 04L906088DS

€37.95

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Part no. 059906051A

Audi A4 B8 A6 C6 DPF Exhaust Pressure Sensor Unit Diesel TDI 059906051A

€23.95

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Part no. 8W0919519C

Audi A4 B9 A5 F5 A6 C8 Exhaust Gas Temperature Sensor 2.0 Hybrid 8W0919519C

€47.95

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Part no. 059906088AT-1

Audi A5 8T Exhaust Gas Temperature Sensor 3.0 TDI CCWA Diesel 059906088AT

€23.95

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Part no. 8W0919529P

Audi A4 B9 A5 F5 Exhaust Gas Temperature Lambda Sensor 2.0 TFSI 8W0919529P

€28.95

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Part no. 8R0906262

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

€23.95

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Part no. 7L0907643A-1

Audi Q7 4L Air Conditioning Quality Sensor AUC Control Unit 7L0907643A

€66.95

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Part no. 8W0906265M

Audi A5 F5 SQ5 FY Lambda Oxygen Sensor Exhaust Wiring 8W0906265M

€23.95

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Part no. 8K0906262G

Audi A5 8T Exhaust Lambda Oxygen Sensor 8K0906262G

€37.95

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Part no. 06J906262N

Audi Q3 8U VW Tiguan 5N Lambda Probe Wiring Oxygen Sensor Petrol 06J906262

€23.95

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Part no. 8W0919529B

Audi A6 C8 A8 4N Exhaust Gas Temperature Lambda Sensor 3.0 TFSI 8W0919529B

€85.95

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Part no. 05L906088BR

Audi A5 F5 A4 B9 Q5 FY Diesel Exhaust Gas Temperature Sensor 05L906088BR

€37.95

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Part no. 4H0906265B

Audi S6 C7 S7 4G Lambda Probe Oxygen Sensor 4 Pin Cyl.1-4 4.0 Petrol 4H0906265B

€28.95

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Part no. 059906088AT

Audi A5 8T 3.0 TDI CCWA Diesel Exhaust Gas Temperature Sensor 059906088AT

€28.95

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Part no. 04E906262AT

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

€28.95

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Part no. 06K906262AE

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

€23.95

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Part no. 4M0906262

Audi A7 4G 3.0 TDI Diesel Lambda Sensor Oxygen Sensor Lambda Probe 4M0906262

€23.95

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Part no. 03G906262M

Audi A4 B7 Diesel NOX Lambda Oxygen Sensor 6 Pins Plug 03G906262M

€23.95

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Part no. 4H0906262H

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

€28.95

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Part no. 059906262E

Audi A4 B7 Diesel Line Lambda Probe Oxygen Sensor 059906262E

€28.95

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Part no. 03L906262K

Audi A4 B8 Lambda Sensor Oxygen Sensor Lambda Probe Diesel Engine TDI 03L906262K

€23.95

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Part no. 06E906265S

Audi A4 S4 8H 8E A5 S5 8T A6 S6 4F Q5 8R Lambda Sensor Oxygen Probe 06E906265S

€23.95

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Part no. 4M0906261J

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

€94.95

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Part no. 4M0907807BD

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

€132.95

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Part no. 80A907807AG

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

€132.95

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Part no. 07C906262BH

Audi A3 8P 1.4 TSI Lambda Sensor Oxygen Sensor Lambda Probe 07C906262BH

€23.95

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Part no. 6Q0820539

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

€23.95

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Part no. 4M0906088AN

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

€23.95

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Part no. 8W0907807BE

Audi A4 B9 A5 F5 NOx Sensor 2.0 TDI Diesel 8W0907807BE

€284.95

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Part no. 059906088CN

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

€23.95

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Part no. 4H0906265C

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

€28.95

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Part no. 4H0906262G

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

€28.95

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Part no. 04E906262BA

Audi A1 8X VW Polo 6R 1.4 TSI Petrol Lambda Oxygen Sensor 04E906262BA

€23.95

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Part no. 03C906262AL

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

€23.95

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Part no. 05L906088BN

Audi A4 B9 A6 C8 A7 4K Q5 FY Exhaust Gas Temperature Sensor 2.0 TDI 05L906088BN

€42.95

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Part no. 8J0971830

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

€23.95

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Part no. 06E906265C

Audi A4 S4 B8 A5 S5 8T 3.2 FSI Exhaust Lambda Oxygen Sensor 06E906265C

€23.95

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Part no. 05L906088Q

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

€66.95

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Part no. 8W0907807BC

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

€355.95

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Part no. 057906262E

Audi Q7 4L 4.2 TDI Lambda Sensor Oxygen Sensor Lambda Probe 057906262E

€28.95

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Part no. 057906262F

Audi Q7 4L 4.2 TDI Lambda Sensor Oxygen Sensor Lambda Probe 057906262F

€23.95

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Part no. 4G0907807AN

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

€279.95

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Part no. 058905379

Audi TT 8N Air Conditioning Heater A/C Temperature Sensor Unit 058905379

€23.95

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Part no. 8K0906262F

Audi A4 B9 A5 Petrol Exhaust Lambda Oxygen Sensor 8K0906262F

€23.95

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Part no. 04L906088DA

VW Volkswagen Passat B8 Exhaust Gas Temperature Sensor 1.6 TDI DCXA 04L906088DA

€23.95

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Part no. 04L906088DB

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

€23.95

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Part no. 03G906088BA

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

€32.95

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Part no. 059906262H

Audi A6 C6 Exhaust Lambda Probe Oxygen Sensor 2.7 TDi Diesel CANC 059906262H

€23.95

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Part no. 03C906262T

Audi A3 8P VW Golf Mk6 1.4 TSI CAXC Petrol Engine Lambda Sensor 03C906262T

€23.95

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Part no. 04L906051F-1

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

€23.95

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Part no. 07L906265

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

€23.95

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Part no. 07L906262R

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

€37.95

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Part no. 8K0907807J

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

€75.95

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

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Part no. 4M0906088AL

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

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€23.95

€23.45

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Part no. 079906262Q

Audi A6 S6 4G RS4 B8 Lambda Oxygen Sensor Probe 4.2 FSI 079906262Q

€23.95

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Part no. 04L906088BF

Volkswagen Golf Mk8 Exhaust Gas Temperature Sensor 1.6 TDI 04L906088BF

€23.95

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Part no. 06K906262

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

€23.95

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Part no. 06J906262A

Audi Volkswagen Seat Skoda Lambda Oxygen Sensor 06J906262A

€23.95

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Part no. 05E906262A

Audi A1 S1 GB Q2 GA Oxygen Lambda Sensor Probe Exhaust 1.0 Petrol 05E906262A

€23.95

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Part no. 4G0906088AA

Audi A4 B8 Diesel Engine Sensor Sonda Lambda Exhaust Probe 4G0906088AA

€23.95

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Part no. 021906262C

Volkswagen Seat Audi Oxygen Sensor Lambda Probe 021906262C 0258006161

€23.95

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Part no. 04L906262K

Audi A1 8X 1.6 TDI Lambda NOX Oxygen Exhaust Sensor Probe Cable 04L906262K

€23.95

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Part no. 06J906262

Audi TT 8J Petrol Lambda Probe Oxygen Sensor 06J906262

€23.95

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Part no. 021906262B

Volkswagen Seat Audi Oxygen Sensor Lambda Probe 021906262B 0258007057

€23.95

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Part no. 4M0906088BA

Audi A4 B9 A7 4G Q7 4M Exhaust Gas Temperature Sensor Diesel 4M0906088BA

€28.95

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Part no. 03G906262

Audi A3 8P Lambda Oxygen Exhaust Sensor Probe Cable TDI Diesel 03G906262

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Part no. 06A919529

Audi TT 8N 1.8T Exhaust Gas Temperature Sensor 06A919529

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Part no. 80A907807B

Lambda Sensor Audi A4 B9 Q5 8R 2.0 TDI Exhaust Probe Oxygen NOX 80A907807B

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Part no. 8R0907807G

Audi Q5 8R Nox Nitrogen Oxide Lambda Sensor Control 8R0907807G

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Part no. 05L907807AH

Audi Q3 F3 Skoda Kodiaq Volkswagen Tiguan Sonda Lambda NOX Sensor 05L907807AH

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Part no. 057906051B

Audi S3 8V 2.0 TFSI Exhaust Control Line Differential Pressure Sensor 057906051B

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Audi Q7 4L Exhaust Pressure Sensor DPF Filter Sensor 0281006005

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Part no. 06A906262BS

Audi A3 8P Lambda Sensor Oxygen Sensor Lambda Probe 2.0 TDI 06A906262BS

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