Lambda probes and O2 sensors
More informationAt 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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Part no. A0009056503
Mercedes W213 OM654 Diesel Exhaust Pressure Sensor DPF A0009056503
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£18.95
£16.11
Free delivery: Jul 21
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Part no. A0081532228
Temperature Sensor Mercedes W204 W212 W906 Gas Exhaust Catalyst A0081532228
£13.95
Free delivery: Jul 21
If paid before 14:00
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Part no. A0075421618
Mercedes W176 W204 W205 W212 W221 W906 Lambda Oxygen Sensor Probe A0075421618
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£13.95
£13.25
Free delivery: Jul 21
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Part no. A0081532728
Mercedes W204 W212 Diesel Particulate Filter Temperature Sensor Gas Exhaust
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£13.95
£13.25
Free delivery: Jul 21
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Part no. A0035427018
Lambda Probe Mercedes ML GL Class W164 W169 Oxygen Sensor A0035427018
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£13.95
£13.25
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Part no. A0035426918
Mercedes W164 W169 W203 W204 W211 Lambda Oxygen Sensor Probe A0035426918
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£13.95
£13.25
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Part no. A6429050200
Mercedes W212 W218 W906 OM651 Diesel Exhaust Pressure Sensor DPF A6429050200
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£18.95
£16.11
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Part no. A0065421718
Lambda Sensor Mercedes W447 Diesel OM651 Catalytic Converter Probe A0065421718
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£23.95
£20.36
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Part no. A0009058011
NOX Sensor Mercedes W205 W213 W906 W247 Lambda Oxygen Probe A0009057803
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£104.95
£89.21
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Part no. A0035427118
Mercedes W203 C209 Lambda Oxygen Sensor Probe A0035427118
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£13.95
£13.25
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Part no. A0025400617
Mercedes W203 Petrol Lambda Oxygen Sensor Probe A0025400617
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£18.95
£16.11
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Part no. A0009053009-1
Mercedes Sprinter W907 W910 OM651 NOX Sensor Lambda Oxygen Probe A0009053009
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£42.95
£36.51
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Part no. A0071536028
Mercedes W176 W246 OM651 Diesel Exhaust Pressure Sensor DPF A0071536028
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£13.95
£13.25
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Part no. A0009056804
Mercedes W204 W205 W212 OM651 Exhaust Gas Temperature Sensor A0009056804
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£23.95
£20.36
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Part no. A0009053905
Mercedes W906 W907 OM651 Diesel Exhaust Gas Temperature Sensor A0009053905
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£28.95
£24.61
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Part no. A0045422218
Mercedes SLK R171 Lambda Sensor Oxygen Probe Petrol A0045422218
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£13.95
£13.25
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Part no. A0071539528
Mercedes W204 W211 Exhaust Gas Temperature Sensor A0071539528
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£23.95
£14.37
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Part no. A0065422718
Mercedes W204 C207 W212 M271 Lambda Sensor Oxygen Probe A0065422718
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£23.95
£14.37
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Part no. A0009053503
NOX Sensor Mercedes W207 W212 W906 Lambda Oxygen Probe A0009053503
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£70.95
£60.31
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Part no. A0009050608
Mercedes W205 X253 W447 W906 Lambda Oxygen Nox Sensor A0009050608
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£94.95
£80.71
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Part no. A0075426318
Mercedes W176 W246 Lambda Oxygen Sensor Probe Exhaust Wiring A0075426318
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£23.95
£20.36
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Part no. A0065422218
Lambda Sensor Mercedes W204 W212 Oxygen Sensor Lambda Probe A0065422218
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£18.95
£16.11
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Part no. A0009058111
NOX Sensor Mercedes W177 W213 C238 X253 OM608 Lambda Oxygen Probe A0009050208
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£75.95
£64.56
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Part no. A0045420718
Mercedes-Benz W169 W203 W204 W211 W212 Petrol Lambda Sensor Probe A0045420718
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£13.95
£13.25
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Part no. A0009056404
Mercedes W212 OM651 Diesel Exhaust Gas Temperature Sensor A0009056404
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£13.95
£13.25
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Part no. A0009059205
Mercedes Sprinter W906 OM651 Diesel Gas Exhaust Temperature Sensor A0009059205
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£28.95
£24.61
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If paid before 14:00
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Part no. A0009055305
Mercedes Vito W447 Diesel OM651 Exhaust Gas Temperature Sensor EGT A0009055305
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£32.95
£28.01
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Part no. A0095425618
Mercedes W156 W204 W246 W463 W636 Oxygen Lambda Sensor A0095425618
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£18.95
£16.11
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Part no. A0009059005
Mercedes W176 OM651 Diesel Exhaust Gas Temperature Sensor A0009059005
Promo price
£47.95
£28.77
Free delivery: Jul 21
If paid before 14:00
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Part no. A0005422404
Lambda Sensor Mercedes C118 W177 W247 M260 Oxygen Probe A0005422404
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£47.95
£28.77
Free delivery: Jul 21
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Part no. A0065422018
Lambda Sensor Mercedes W204 W212 Oxygen Sensor Lambda Probe A0065422018
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£37.95
£22.77
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If paid before 14:00
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Part no. A0065424918
Mercedes W204 W212 Diesel Lambda Sensor Oxygen Probe A0065424918
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£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009053603
NOX Sensor Mercedes W212 W176 W246 Lambda Probe Control Unit A0009053603
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£85.95
£51.57
Free delivery: Jul 21
If paid before 14:00
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Part no. 0281004221
Mercedes W205 Renault Lambda Probe Oxygen Sensor Bosch 0281004221
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£28.95
£24.61
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Part no. A0005423100
NOX Sensor Mercedes W213 X253 M274 Lambda Oxygen Probe A0005423100
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£18.95
£16.11
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If paid before 14:00
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Part no. A0071536128
Mercedes W204 W203 W169 W212 W245 W906 Exhaust Pressure Sensor DPF A0071536128
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
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Part no. 227702184R
Mercedes W176 Exhaust Pressure Sensor DPF Particulate Filter Sensor 227702184R
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009052709
Mercedes W447 Lambda Oxygen NOX Sensor A0009052709
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£61.95
£52.66
Free delivery: Jul 21
If paid before 14:00
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Part no. rhd-A0009059703
Mercedes W166 W205 W213 W238 W292 W447 W906 Nox Oxygen Sensor A0009059703
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£61.95
£37.17
Free delivery: Jul 21
If paid before 14:00
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Part no. A0005428104
Mercedes W177 Lambda Sensor Downstream Of Catalytic Converter A0005428104
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£18.95
£16.11
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Part no. A0009059603
Mercedes W906 Lambda Oxygen Sensor Probe A0009059603
Promo price
£42.95
£36.51
Free delivery: Jul 21
If paid before 14:00
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Part no. A0071536728
Exhaust Temperature Sensor Mercedes W204 W212 OM651 Diesel Engine A0071536728
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£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009057809-2
Exhaust Pressure Sensor Mercedes W177 W246 M260 Petrol DPF A0009057809
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009051132
Mercedes R172 OM651 Diesel Exhaust Gas Temperature Sensor A0009051132
Promo price
£28.95
£24.61
Free delivery: Jul 21
If paid before 14:00
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Part no. 0071539628
EGT Mercedes W639 W211 Diesel OM642 Exhaust Gas Temperature Sensor A0071539628
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£37.95
£22.77
Free delivery: Jul 21
If paid before 14:00
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Part no. rhd-A0071538828
Mercedes W211 W212 C219 OM642 Diesel Exhaust Gas Temperature Sensor A0071538828
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£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
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Part no. A0045427318
Lambda Sensor Mercedes W164 W204 W211 Diesel CDI Oxygen Probe A0045427318
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009058904
Mercedes X253 OM651 Catalytic Converter Sensor Temperature Exhaust Sensor
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
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Part no. A2601500400
Mercedes W177 W247 M260 Diesel Exhaust Gas Temperature Sensor A2601500400
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
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Part no. A0045428618
Mercedes W203 W204 W212 Lambda Sensor Petrol Oxygen Probe A0045428618
Promo price
£28.95
£24.61
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009054914
Mercedes Sprinter W910 Lambda Oxygen NOX Sensor A0009054914
Promo price
£94.95
£56.97
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009057809
Exhaust Pressure Sensor Mercedes W177 W246 M260 Petrol DPF A0009057809
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. A0071539828
Mercedes W204 W211 C219 Exhaust Temperature Sensor Control Unit A0071539828
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£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
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Part no. A0019050600
Mercedes W204 W212 OM642 Diesel Exhaust Gas Temperature Sensor A0019050600
Promo price
£23.95
£20.36
Free delivery: Jul 21
If paid before 14:00
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Part no. A0051539028
Mercedes W164 Exhaust Gas Temperature Sensor Pipe Line A0051539028
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£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009052106
Mercedes Vito W447 OM651 Exhaust Gas Temperature Sensor A0009052106
Promo price
£37.95
£22.77
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009054409
Mercedes W205 W213 W238 W257 Petrol Exhaust Gas Temperature Sensor A0009054409
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009055202
Exhaust Gas Temperature Sensor Mercedes SLK R172 W205 W212 OM651 A0009055202
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
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Part no. A0085423018
Lambda Probe Mercedes C216 W204 W221 OM274 Catalytic Converter Lambda Sensor
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£42.95
£25.77
Free delivery: Jul 21
If paid before 14:00
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Part no. A0075420218
Mercedes W204 W212 Lambda Sensor Oxygen Sensor Lambda Probe OM651 A0075420218
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. 0009055114
Mercedes Vito W447 Sprinter W907 OM654 Knox Sensor Exhaust Probe 0009055114
Promo price
£94.95
£56.97
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009059905
Mercedes C253 W213 C238 W907 Exhaust Gas Temperature Sensor A0009059905
Promo price
£23.95
£20.36
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009058311
Mercedes W205 OM656 NOX Lambda Sensor Catalytic Converter A0009058311
Promo price
£213.95
£128.37
Free delivery: Jul 22 – 29
If paid before 14:00
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Part no. A0009058800
Mercedes W221 Exhaust Catalytic Converter Oxygen Sensor A0009058800
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£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009050132
Exhaust Temperature Sensor Mercedes Sprinter W906 OM646 Diesel A0009050132
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009058105
Mercedes C117 W246 X156 Diesel DPF Exhaust Gas Temperature Sensor OM651
Promo price
£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
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Part no. A0005424404
Lambda Sensor Mercedes C118 W177 W247 M282 Oxygen Probe A0005424404
Promo price
£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009058705
Mercedes W205 GLC C253 OM642 OM651 Exhaust Gas Temperature Sensor A0009058705
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
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Part no. A0051531028
Mercedes W211 W906 Diesel Exhaust Gas Temperature Sensor A0051531028
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009055010
Mercedes C207 W212 M276 V6 Petrol NOx Lambda Sensor A0009055010
Promo price
£161.95
£137.66
Free delivery: Jul 22 – 29
If paid before 14:00
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Part no. A0081533728
Mercedes W212 Diesel Gas Exhaust Temperature Probe Sensor A0081533728
Promo price
£13.95
£13.25
Free delivery: Jul 21
If paid before 14:00
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Part no. A0045424818
Mercedes W204 C207 S211 S212 C219 Lambda Oxygen NOX Sensor A0015424848
Promo price
£23.95
£14.37
Free delivery: Jul 21
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Part no. A0005421000
Lambda Oxygen Sensor Mercedes ML W166 C207 W212 C218 M276 Turbo A0005421000
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£47.95
£28.77
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009055006
Mercedes C207 Exhaust Lambda Nox Oxygen Sensor A0009055006
Promo price
£47.95
£28.77
Free delivery: Jul 21
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Part no. A0009053806
Mercedes W177 W247 Exhaust Gas Temperature Sensor OM654 654.920 A0009053806
£56.95
Free delivery: Jul 21
If paid before 14:00
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Part no. A1774902502
Mercedes W177 W247 DPF Exhaust Pressure Sensor Bracket Mount Holder A1774902502
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£13.95
£13.25
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Part no. DV61-12B591-AA
Ford Connect 1.6 TDCI Exhaust Gas Temperature Sensor DV61-12B591-AA
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£51.95
£31.17
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009055106
Mercedes C207 Exhaust Lambda Nox Oxygen Sensor A0009055106
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£47.95
£28.77
Free delivery: Jul 21
If paid before 14:00
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Part no. A0009050905
Mercedes GLE 250 W166 Diesel OM651 Temperature Sensor Catalytic Converter
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£37.95
£22.77
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Part no. A0009057605
Mercedes W205 OM651 Exhaust Flue Gas Temperature Sensor Wiring Cable A0009057605
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£37.95
£22.77
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Part no. A0005421400
Mercedes SLK R172 W205 W213 Lambda Sensor Oxygen Probe M276 Petrol A0005421400
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£18.95
£16.11
Free delivery: Jul 21
If paid before 14:00
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Part no. A0005421600
Mercedes A238 M276 Petrol Exhaust Lambda Probe Oxygen Sensor A0005421600
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£18.95
£16.11
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Part no. A1668800359
Mercedes W166 Bonnet Hood Lock Cable Bowden A1668800359
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£28.95
£17.37
Free delivery: Jul 21
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Part no. A0019053000
Mercedes W204 OM646 Diesel Engine Exhaust Gas Temperature Sensor A0019053000
Promo price
£28.95
£17.37
Free delivery: Jul 21
If paid before 14:00
Part no. A0075420018
Mercedes W204 S204 W212 S212 NOX Lambda Probe Oxygen Sensor Control A0075420018
£94.95
Free delivery: Jul 21
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Part no. A0009059007
Mercedes Sprinter W910 W447 OM651 Exhaust Gas Temperature Sensor A0009059007
Promo price
£28.95
£17.37
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Part no. A0005421300
Mercedes W205 M176 Lambda Probe Sensor Left Right N/O/S A0005421300
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£23.95
£20.36
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Part no. A2054408405
Mercedes W205 Lambda NOx Oxygen Right O/S Adapter Cable Sensor A2054408405
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£75.95
£45.57
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Part no. rhd-A4474709900
Mercedes W447 Lambda Oxygen Nox Sensor A4474709900
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£142.95
£85.77
Free delivery: Jul 21
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Part no. 0258017016
Mercedes W169 W204 W211 W212 C219 Oxygen Lambda Sensor Exhaust 0258017016
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£23.95
£14.37
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Part no. A0005421900
Mercedes C207 W212 W213 W222 M276 Petrol Lambda Oxygen Sensor Probe A0005421900
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£28.95
£17.37
Free delivery: Jul 21
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Part no. A0009056704
Temperature Sensor Mercedes W176 W246 Diesel Exhaust Gas A0009056704
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£23.95
£14.37
Free delivery: Jul 21
If paid before 14:00
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Part no. rhd-A0015408717
Lambda Sensor Mercedes W203 W209 W211 Oxygen Sensor Lambda Probe A0015408717
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£13.95
£13.25
Free delivery: Jul 21
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Part no. A0009059405
Mercedes R172 Gas Exhaust Temperature Sensor A0009059405
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£94.95
£56.97
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If paid before 14:00
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Part no. A0045420818
Mercedes-Benz W164 W204 W211 W212 W221 Petrol Lambda Sensor Probe A0045420818
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£13.95
£13.25
Free delivery: Jul 21
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Part no. A0009050332
Gas Temperature Sensor Mercedes W166 OM651 Exhaust Sensor Wiring A0009050332
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£18.95
£16.11
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Part no. A0095425718
Mercedes R231 Lambda Sensor Oxygen Probe SL63 AMG Petrol A0095425718
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£47.95
£28.77
Free delivery: Jul 21
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Part no. A0005427912
Mercedes C118 W177 M282 Petrol Exhaust Lambda Oxygen Sensor A0005427912
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£80.95
£68.81
Free delivery: Jul 21
If paid before 14:00
Part no. 0075426418
Mercedes W205 W246 Lambda Oxygen Sensor Probe Hybrid Engine 0075426418
£13.95
Free delivery: Jul 21
If paid before 14:00
Original lambda sensors and O2 sensors – precise exhaust emission control
A wide selection of probes and sensors for BMW, Audi, Mercedes, MINI, Volkswagen and others
Lambda sensors and O2 sensors are essential components of the exhaust system that monitor oxygen levels in exhaust gases, supporting efficient fuel combustion and the reduction of harmful emissions. Their proper operation is necessary to meet emission standards and ensure optimal engine performance. In the Global Parts automotive store, you will find a wide selection of used car parts, including lambda sensors and O2 sensors, ideal for brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and many others.
What functions do lambda sensors and O2 sensors perform?
Lambda sensors and O2 sensors perform key functions in a vehicle's exhaust system:
- Measuring oxygen levels in exhaust gases – Lambda sensors analyze the oxygen content in exhaust gases, providing data to the engine control unit.
- Regulating the air-fuel mixture – Based on sensor measurements, the engine control unit adjusts the fuel and air proportions, ensuring optimal combustion.
- Reducing exhaust emissions – Lambda sensors support the operation of the catalytic converter, helping to reduce the emission of harmful substances.
- Monitoring catalytic converter performance – Lambda sensors placed after the catalytic converter monitor its efficiency, reporting any potential faults. In practice, lambda sensors are divided into narrowband sensors (voltage changes in the range of 0.1–0.9 V) and wideband sensors (providing detailed data over a wider measurement range). Wideband O2 sensors are used in newer Audi and BMW models, among others, as they allow for more precise control of the fuel dose. These differences are important when matching parts – using the wrong sensor can result in engine performance errors.
Construction and purpose of lambda sensors and O2 sensors
Lambda sensors and O2 sensors are sensors mounted in the exhaust system, most often before and after the catalytic converter. Their task is to read the oxygen content in the exhaust gases and transmit a signal to the engine control unit. A typical component consists of a measuring part, a threaded body, a cable, and an electrical connector. Depending on the car version, the number of wires, plug type, and signal characteristics vary.
Comparison of lambda sensor and O2 sensor types
| Sensor type | Typical number of wires | Operating position | What to check before purchase |
|---|---|---|---|
| Narrowband | 1–4 | Mainly older petrol systems | OEM number, plug type, cable length, position before or after the catalytic converter |
| Wideband | 5–6 | Newer petrol engines and some diesels | Signal type, ECU compatibility, OEM part number, and interchangeable numbers |
| Diagnostic sensor after catalytic converter | Depends on version | Section after the catalytic converter | Mounting location, connector type, compatibility with exhaust system and engine version |
Why is it worth taking care of lambda sensors and O2 sensors?
Damage or wear of lambda sensors and O2 sensors can lead to problems with engine efficiency and exhaust emissions. Typical symptoms of failure include:
- Power loss and rough engine operation – A faulty lambda sensor can cause incorrect adjustment of the air-fuel mixture.
- Increased fuel consumption – Improper lambda sensor operation can lead to a richer fuel mixture, increasing fuel consumption.
- Higher exhaust emissions – Faulty lambda sensors can disrupt the operation of the catalytic converter, causing an increase in harmful emissions.
- Dashboard errors – Problems with lambda sensors are often signaled by the "check engine" light. The typical lifespan of lambda sensors is between 80,000 and 160,000 km, depending on the manufacturer and operating conditions. O2 sensors are exposed to high temperatures (up to 900°C) and contact with fuel residues, which is why replacing them at the right time is important for both ecology and driving economy. Correctly matching the sensor by VIN or model specification guarantees compatibility with the given car's exhaust system. At Global Parts, we offer used car parts, including used lambda sensors and O2 sensors that have undergone detailed quality tests.
The importance of the sensor signal for engine and exhaust system operation
The lambda sensor signal is used for real-time correction of the air-fuel mixture composition. When the reading is incorrect, the control unit may supply a mixture that is too rich or too lean, which affects engine smoothness, fuel consumption, and the effectiveness of exhaust purification. The O2 sensor works not only with the ECU but also with components such as catalytic converters or EGR valves and parts. Therefore, during diagnostics, it is worth looking at the entire system, not just a single error code stored in the control unit's memory.
How to choose the right lambda sensors and O2 sensors?
When choosing lambda sensors and O2 sensors, pay attention to several key aspects:
- Compatibility with the vehicle model – Every exhaust system has its specific technical requirements. In the Global Parts automotive store, you will find lambda sensors and O2 sensors perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and others.
- Type of lambda sensor – Ensure that the selected sensor matches your system (one-, two-, three-, or four-wire).
- Technical condition – Used lambda sensors and sensors should be free from mechanical and electrical damage, and their cables should be in good condition.
Selection by OEM number, connector, and mounting location
Selecting a lambda sensor involves comparing the OEM part number, fuel type, number of pins, and mounting location in the vehicle. The same make and model may have different sensor versions depending on the engine, year, emission standard, and whether the component operates before or after the catalytic converter. For parts such as a BMW E87 116i lambda sensor, it is worth comparing the manufacturer's marking, cable length, and plug version. When choosing a component like a BMW E60 530d lambda sensor, compatibility with the diesel system and the mounting position relative to diesel particulate filters is also important if the specific car version is equipped with one.
Cooperating elements and installation practice
The lambda sensor socket is a threaded point in the exhaust system where the sensor responsible for oxygen measurement is screwed in. During installation, it is necessary to check the condition of the thread, cable routing, distance from hot components, and connector compatibility with the car's wiring harness. If you are looking for a component such as an Audi A4 B8 temperature sensor, you should also compare the connector, seating location, and OEM number, as similar matching principles apply to several cooperating sensors in the exhaust system electronics. Diagnostic support can be found in our guide Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, which discusses selection by VIN and equipment compatibility.
Why choose used lambda sensors and O2 sensors?
Used car parts, such as lambda sensors and O2 sensors, are a practical solution that allows for savings while maintaining high quality. By choosing used lambda sensors and O2 sensors, you gain:
- Lower costs – Used components are significantly cheaper than new ones but offer equally high quality.
- Ecology – Recycling car parts supports environmental protection and reduces waste.
- Wide selection – In our store, you will find lambda sensors and O2 sensors for the most popular car brands. It is worth noting that many O2 sensors in the Global Parts offer come from premium brand cars, where original parts are known for their high durability. This allows customers to count on excellent fitment for their model and full compliance with factory parameters. This makes purchasing such components an economical and technically safe solution.
How to take care of lambda sensors and O2 sensors?
To ensure lambda sensors and O2 sensors work reliably for a long time, it is worth following a few rules:
- Regularly check the condition of lambda sensors during exhaust system diagnostics, especially if the "check engine" light appears.
- Use high-quality fuel to reduce the amount of deposits and contaminants in the exhaust system.
- Replace lambda sensors according to the manufacturer's recommendations or in case of visible signs of failure.
- If replacement is necessary, at Global Parts you will find suitable used parts for the exhaust system.
FAQ
| Question | Answer |
|---|---|
| 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. |
Summary: lambda sensors and O2 sensors at the Global Parts automotive store
Lambda sensors and O2 sensors are key exhaust system components that ensure optimal fuel combustion and control exhaust emissions. The Global Parts offer includes used components matched to many engine versions and many car models from brands such as Mercedes, Audi, BMW, and others. When choosing, it is worth comparing the OEM number, fuel type, mounting location, and compatibility with exhaust system equipment to select the right part for the specific vehicle configuration. We invite you to contact us – we are here to help! For more information and interesting facts, we also invite you to visit our automotive blog.