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Exhaust parts Lambda sensors / NOx sensors

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The lambda sensor supports the catalyst in its work


The lambda sensor, also known as the exhaust probe or control probe, is a sensor that measures the oxygen content of the exhaust gases. Based on the values determined, the engine control system regulates the fuel-air mixture to achieve optimum combustion. The catalytic converter can thus significantly reduce the emission of harmful gases. Low-emission exhaust gases are particularly important in conurbations in order to prevent driving bans and reduce environmental pollution.

For this reason, the control probe is an important component of the exhaust system and it is worthwhile to rely on high quality and fitting accuracy. With the original lambda probes from the vehicle manufacturers, you can play it safe. How important the exhaust probe is, which other probes are added for the exhaust measurement, which lambda value means what and much more can be seen in the lower section of this page.

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ORIGINAL GM Opel NOx-Sensor Lambdasonde ZAFIRA TOURER C 855608 / 55487677

item ref.: OP185U214H
manufacturer: Opel
part number: 55487677
Baugruppe: Abgasanlage
Verwendung: NOx-Wert (Harnstoffeinspritzung)
Mengeneinheit: Stück
instead off 391.51 EUR 235.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL Renault Lambdasonde CLIO ESPACE KANGOO LAGUNA MEGANE TWINGO 7700107433

! Einschränkung beachten !

item ref.: RE355A564X
manufacturer: RENAULT
part number: 77 00 107 433
Baugruppe: Gemischaufbereitung
Verwendung: Lambdawert
Mengeneinheit: Stück
RRP 181.17 EUR 52.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL GM Opel Lambdasonde NACH Katalysator Astra J Corsa D Insignia 855252

auch für ADAM CASCADA MERIVA B ZAFIRA C

item ref.: OP785R564H
manufacturer: Opel
part number: 55562206
Abgasanlage: nach Katalysator
Baugruppe: Gemischaufbereitung
Verwendung: Lambdawert
Mengeneinheit: Stück
RRP 218.96 EUR 94.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL Citroen Peugeot Lambdasonde NACH Katalysator 1618.V3

BERLINGO C3 C4 C5 DS3 DS4 DS5 207 208 308 508 RCZ uvm

item ref.: PE855N564X
manufacturer: PEUGEOT
part number: 1618.V3
Baugruppe: Gemischaufbereitung
Verwendung: Lambdawert
Mengeneinheit: Stück
RRP 261.75 EUR 78.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL BMW NOx-Sensor Lambdasonde E90 E91 E92 E93 E60 E61 E63 E64 11787587129

für BMW 3er 325i 330i 5er 525-530i 6er 630i

item ref.: BM255D214X
manufacturer: BMW
part number: 11 78 7 587 129
Baugruppe: Abgasanlage
Verwendung: NOx-Wert (Harnstoffeinspritzung)
Mengeneinheit: Stück
RRP 503.45 EUR 432.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL Renault Lambdasonde VOR Kat CAPTUR CLIO 4 TWINGO III 0.9 TCe 226937264R

auch für MEGANE III 2.0 TCe MEGANE IV 1.6 16V

item ref.: RE555Z564X
manufacturer: RENAULT
part number: 22 69 372 64R
Baugruppe: Gemischaufbereitung
Verwendung: Lambdawert
Mengeneinheit: Stück
instead off 187.50 EUR 113.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL Citroen Peugeot Lambdasonde VOR Katalysator 1.4/1.6 16V 1618.LL

passend für 95 / 98 / 120 PS Benziner

item ref.: PE165U564S
manufacturer: PEUGEOT
part number: 1618.LL
Baugruppe: Gemischaufbereitung
Verwendung: Lambdawert
Mengeneinheit: Stück
RRP 277.57 EUR 111.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL GM Opel NOx-Sensor Lambdasonde INSIGNIA A 2.0 CDTI 170 PS 55500320

item ref.: OP085Y214H
manufacturer: Opel
part number: 55500320
Baugruppe: Abgasanlage
Verwendung: NOx-Wert (Harnstoffeinspritzung)
Mengeneinheit: Stück
RRP 576.55 EUR 413.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL Citroen Peugeot NOx-Sensor Lambdasonde 1.6 / 2.0 BlueHDi 9821120980

item ref.: PE210D214W
manufacturer: PEUGEOT
part number: 98 211 209 80
Verwendung: NOx-Katalysator
Baugruppe: Gemischaufbereitung
Mengeneinheit: Stück
285.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL Opel NOx-Sensor Lambdasonde INSIGNIA A 2.0 CDTI 170 PS 55500319

item ref.: OP285D214H
manufacturer: Opel
part number: 55500319
Baugruppe: Abgasanlage
Verwendung: NOx-Wert (Harnstoffeinspritzung)
Mengeneinheit: Stück
instead off 568.82 EUR 415.95 EUR

incl. legal tax, + shipping fees

available
shipping period: 1-2 Werktage
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ORIGINAL Ford Lambdasonde VOR Kat C-MAX II FOCUS III 1.0EcoBoost 1886204

auch für Tourneo Connect Transit Connect

item ref.: FO543Z939K
manufacturer: FORD
part number: 1 886 204
Baugruppe: Gemischaufbereitung
Verwendung: Lambdawert
Mengeneinheit: Stück
138.95 EUR

incl. legal tax, + shipping fees

Only some available
shipping period: 2-3 Werktage
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ORIGINAL Ford Lambdasonde NACH Kat Galaxy S-Max WA6 Mondeo IV 2.0 2.3 1376445

item ref.: FO552Z519X
manufacturer: FORD
part number: 1 376 445
Baugruppe: Gemischaufbereitung
Verwendung: Lambdawert
Mengeneinheit: Stück
328.95 EUR

incl. legal tax, + shipping fees

Only some available
shipping period: 2-3 Werktage
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of 6

Where is the lambda sensor located and what do the different lambda values mean?


The control probe sits in front of the catalytic converter in the exhaust manifold. Most engines only have one exhaust probe installed, but sports cars can even have one for each cylinder. The lambda sensor influences the performance, consumption and environmental impact of the engine. Its results are referred to as so-called lambda values. These values allow conclusions to be drawn about the mixture ratio of fuel and air. In the following you will find the lambda values with their corresponding meanings:

  • Lambda value less than 1: More fuel in the mixture than can be burned. One also speaks of a "rich mixture". Here more power can be called up and it comes to a higher consumption, as well as to a higher environmental impact.
  • Lambda value greater than 1: More air in the mixture than is necessary for combustion. There is thus an excess of air and is therefore also referred to as a "lean mixture". The fuel consumption is lower, but performance is reduced and problems can also arise with the catalytic converter.
  • Lambda value = 1: The mixture contains exactly as much air as is required for the combustion of the fuel. There is a balance between consumption and performance and is therefore environmentally friendly. The so-called lambda window provides the greatest cleaning performance in the catalytic converter.

What happens if the control probe fails?


Even standard probes can wear out, for example if they:

  • are exposed to excessive temperatures
  • experience chemical stress too high
  • too high mechanical loads such as vibrations of the vehicle act on them

If the lambda sensor is defective, the control unit no longer receives any useful data. The engine control goes into emergency mode and greases the mixture more strongly. This leads to increased fuel consumption and increased environmental pollution. The emission of smoke clouds can also point to a defective control probe.

The defective exhaust probe is usually detected and stored by the vehicle diagnostic system. In addition, there are also so-called diagnostic probes which are installed behind the catalytic converter. It checks whether the lambda sensor in front of the catalytic converter still functions correctly. If this is not the case, the driver will be informed accordingly.

Is it possible to continue driving if the exhaust probe is defective?


From a technical point of view, a defective lambda sensor does not affect the engine performance. However, it is not advisable to continue with a defective control probe. On the one hand, an intact probe is TÜV-relevant. On the other hand, the additional costs due to increased fuel consumption are significantly higher than the fast and cost-effective replacement of the exhaust probe.

In order to guarantee a long service life, it is worthwhile to focus on quality. You get the best quality with the original parts of the vehicle manufacturer. Simply select your vehicle and you will receive the suitable control probe for your vehicle. If you have any further questions, please feel free to contact our service team.