{"id":16800,"date":"2024-08-19T06:00:01","date_gmt":"2024-08-19T06:00:01","guid":{"rendered":"https:\/\/www.motointegrator.fr\/blog\/?p=16800"},"modified":"2026-03-20T08:24:00","modified_gmt":"2026-03-20T07:24:00","slug":"quest-ce-quun-capteur-nox","status":"publish","type":"post","link":"https:\/\/www.motointegrator.fr\/blog\/quest-ce-quun-capteur-nox\/","title":{"rendered":"Qu&rsquo;est-ce qu&rsquo;un capteur NOx ? Tout ce qu&rsquo;il faut savoir"},"content":{"rendered":"<h2>Qu&rsquo;est-ce qu&rsquo;un capteur d&rsquo;oxyde d&rsquo;azote (NOx) ?<\/h2>\n<p>Le capteur d&rsquo;oxyde d&rsquo;azote surveille les \u00e9missions d&rsquo;oxyde d&rsquo;azote du v\u00e9hicule pour s&rsquo;assurer qu&rsquo;il respecte les normes d&rsquo;\u00e9mission.<\/p>\n<p>Les oxydes d&rsquo;azote (\u00e9galement connus sous le nom de NOx) sont des polluants qui ont un impact \u00e0 la fois sur l&rsquo;environnement et sur la sant\u00e9. Les NOx font g\u00e9n\u00e9ralement r\u00e9f\u00e9rence au monoxyde d&rsquo;azote (NO), qui se transforme en dioxyde d&rsquo;azote (NO2) lorsqu&rsquo;il se combine avec l&rsquo;oxyg\u00e8ne \u00e0 haute temp\u00e9rature. Ce gaz brun-rouge\u00e2tre donne un aspect brun et brumeux au smog estival dans les zones \u00e0 forte circulation.<\/p>\n<p>Ces gaz sont toxiques et tr\u00e8s r\u00e9actifs. Ils peuvent provoquer des infections respiratoires et de l&rsquo;asthme, en particulier chez les enfants, et peuvent avoir des effets n\u00e9fastes sur les \u00e9cosyst\u00e8mes locaux et la visibilit\u00e9 routi\u00e8re.<\/p>\n<p>Le contr\u00f4le des niveaux d&rsquo;oxydes d&rsquo;azote \u00e9mis dans l&rsquo;atmosph\u00e8re est d&rsquo;une importance capitale, et le <a href=\"https:\/\/www.motointegrator.fr\/produits\/nox-delphi.html\">capteur NOx<\/a> est donc un composant automobile indispensable.<\/p>\n<h2>Quel est le r\u00f4le d&rsquo;un capteur NOx ?<\/h2>\n<p>Le capteur de NOx ne se contente pas de surveiller les niveaux d&rsquo;oxydes d&rsquo;azote rejet\u00e9s dans l&rsquo;air, il joue \u00e9galement un r\u00f4le important dans leur contr\u00f4le gr\u00e2ce au syst\u00e8me de r\u00e9duction catalytique s\u00e9lective (SCR) des v\u00e9hicules diesel.<\/p>\n<p>Le capteur NOx est un \u00e9l\u00e9ment cl\u00e9 de ce syst\u00e8me, qui comprend \u00e9galement le catalyseur SCR, le filtre \u00e0 particules diesel (FAP) et le turbocompresseur, entre autres. Si le capteur NOx d\u00e9tecte une \u00e9mission excessive de gaz NOx, il transmet cette information au syst\u00e8me SCR, qui ajuste alors les \u00e9missions \u00e0 un niveau conforme aux normes anti-pollution en vigueur.<\/p>\n<h2>Comment fonctionne un capteur NOx ?<\/h2>\n<p>Le capteur est constitu\u00e9 d&rsquo;une cellule de Nernst travers\u00e9e par un courant \u00e9lectrique. Celle-ci r\u00e9gule le rapport air-carburant \u00e0 \u03bb=1. Une deuxi\u00e8me cellule, g\u00e9n\u00e9ralement en c\u00e9ramique rev\u00eatue d&rsquo;une couche de rhodium, d\u00e9compose les oxydes d&rsquo;azote en azote et en oxyg\u00e8ne. Le calculateur de NOx, g\u00e9n\u00e9ralement plac\u00e9 \u00e0 proximit\u00e9 du capteur NOx, calcule la teneur en oxydes d&rsquo;azote dans les gaz d&rsquo;\u00e9chappement et envoie ces donn\u00e9es au calculateur SCR. Le calculateur SCR ajuste alors la quantit\u00e9 de fluide d&rsquo;\u00e9chappement diesel inject\u00e9e dans le catalyseur SCR qui, \u00e0 son tour, transforme les oxydes d&rsquo;azote exc\u00e9dentaires en eau et en azote.<\/p>\n<h2>O\u00f9 se trouve le capteur NOx ?<\/h2>\n<p>Le capteur NOx se trouve g\u00e9n\u00e9ralement en aval du catalyseur SCR. Le calculateur SCR peut ainsi v\u00e9rifier si les taux de NOx sont tomb\u00e9s \u00e0 un niveau correct. Certains v\u00e9hicules sont \u00e9quip\u00e9s de deux capteurs, un en amont et l&rsquo;autre en aval du catalyseur SCR, mais le plus souvent, il n&rsquo;y a qu&rsquo;un seul capteur.<\/p>\n<h2>A-t-on besoin d&rsquo;un capteur NOx ?<\/h2>\n<p>Oui, les capteurs NOx sont une n\u00e9cessit\u00e9, en particulier pour les v\u00e9hicules diesel modernes.<\/p>\n<p>Les oxydes d&rsquo;azote ayant un impact n\u00e9faste sur la sant\u00e9 humaine et, indirectement, sur l&rsquo;environnement, les contr\u00f4les des \u00e9missions sont strictement r\u00e9glement\u00e9s.<\/p>\n<p>Les v\u00e9hicules sont \u00e9quip\u00e9s de capteurs NOx depuis le d\u00e9but des ann\u00e9es 2000. Pour \u00eatre conforme \u00e0 la norme Euro 6, un v\u00e9hicule diesel moderne ne doit pas \u00e9mettre plus de 80 mg\/km de gaz NOx, ce qui serait impossible sans un capteur NOx pour surveiller les niveaux avec pr\u00e9cision.<\/p>\n<h2>Les capteurs NOx se trouvent-ils uniquement sur les moteurs diesel ?<\/h2>\n<p>La plupart des v\u00e9hicules modernes sont \u00e9quip\u00e9s de capteurs NOx, qu&rsquo;ils soient \u00e0 essence ou diesel.<\/p>\n<p>Bien que les moteurs \u00e0 essence produisent beaucoup moins de NOx que les moteurs diesel, les niveaux d&rsquo;\u00e9mission restent strictement r\u00e9glement\u00e9s. Pour passer le contr\u00f4le anti-pollution Euro 6, les v\u00e9hicules modernes disposent d&rsquo;au moins un capteur de NOx qui contr\u00f4le les \u00e9missions du v\u00e9hicule.<\/p>\n<h2>D\u00e9fauts fr\u00e9quents des capteurs NOx<\/h2>\n<p>Les composants de pr\u00e9cision tels que les capteurs NOx ont une dur\u00e9e de vie limit\u00e9e. Il est donc souvent n\u00e9cessaire de les remplacer \u00e0 un moment donn\u00e9 de la vie du v\u00e9hicule.<\/p>\n<p>L&rsquo;une des principales causes de d\u00e9faillance des capteurs NOx est l&rsquo;accumulation de suie issue du processus de combustion. En plus d&rsquo;\u00eatre abrasive, ce qui signifie qu&rsquo;elle peut endommager le capteur au fil du temps, la suie peut \u00e9galement recouvrir le capteur, l&#8217;emp\u00eachant ainsi de mesurer les gaz avec pr\u00e9cision.<\/p>\n<h2>Peut-on tester un capteur NOx ?<\/h2>\n<p>Si le v\u00e9hicule pr\u00e9sente des sympt\u00f4mes de d\u00e9faillance du capteur NOx, tels que :<\/p>\n<ul>\n<li>l&rsquo;allumage du voyant moteur<\/li>\n<li>une augmentation de la consommation de carburant<\/li>\n<li>une r\u00e9duction de la puissance<\/li>\n<li>le passage en mode Limp<\/li>\n<li>une diminution de l&rsquo;acc\u00e9l\u00e9ration<\/li>\n<li>une baisse des performances<\/li>\n<\/ul>\n<p>un outil de diagnostic comme le BlueTech VCI de Delphi permet alors de lire les codes d\u00e9faut sur l\u2019ECU du v\u00e9hicule. Cependant, ces codes ne sont pas forc\u00e9ment r\u00e9v\u00e9lateurs, car ils peuvent \u00eatre dus \u00e0 divers dysfonctionnements. Si l&rsquo;on soup\u00e7onne une d\u00e9faillance du capteur NOx, un test suppl\u00e9mentaire peut \u00eatre effectu\u00e9 sur le capteur \u00e0 l&rsquo;aide d&rsquo;un multim\u00e8tre pour v\u00e9rifier son bon fonctionnement.<\/p>\n<h2>Comment nettoyer un capteur NOx ?<\/h2>\n<p>Il n&rsquo;est pas recommand\u00e9 de nettoyer un capteur NOx. Les capteurs NOx sont en fait autonettoyants. Par cons\u00e9quent, si le capteur pr\u00e9sente des signes de dysfonctionnement, il convient de le remplacer plut\u00f4t que de le nettoyer manuellement pour r\u00e9soudre le probl\u00e8me.<\/p>\n<div class=\"product-slider\" style=\"--swiper-theme-color: #d80812;--swiper-navigation-size: 22px;--swiper-navigation-sides-offset: -25px;\"><div class=\"slider-title\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><h2>DELPHI \u2013 la qualit\u00e9 au meilleur prix<\/h2><\/div><div class=\"swiper\"><div class=\"swiper-wrapper\"><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/rtg08kgwwd7jobg3zz1y.jpg\" alt=\"44093\" \/><a class=\"line-clamp-title\" 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43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/se5sjczbyv2ckptdrb1x.jpg\" alt=\"47368\" \/><a class=\"line-clamp-title\" 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0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/nmz9yhr1gamombon1mkx.jpg\" alt=\"41866\" \/><a 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0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/gk4q1peyet8thberzitr.jpg\" alt=\"39641\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1461270-jeu-de-machoires-de-frein-delphi-kp850\" target=\"_blank\">Jeu de m\u00e2choires de frein DELPHI KP850<\/a><p>Delphi<\/p><div class=\"price-container\"><p class=\"price\">63.09 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/jktqbtxeyedxffewcvsd.jpg\" alt=\"37397\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/541366-rotule-de-suspension-delphi-tc1317\" target=\"_blank\">Rotule de suspension DELPHI TC1317<\/a><p>Delphi<\/p><div class=\"price-container\"><p class=\"price\">12.45 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/yydonoaeg3w3jwornfxb.jpg\" alt=\"36989\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1267472-bras-de-suspension-delphi-tc2659-essieu-avant-gauche-avant\" target=\"_blank\">Bras de suspension DELPHI TC2659 essieu avant, gauche, avant<\/a><p>Delphi<\/p><div class=\"price-container\"><p class=\"price\">32.73 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/yqbvaolwvfrvd5adi8ei.jpg\" alt=\"41538\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1276125-bobine-dallumage-delphi-gn10584-12b1\" target=\"_blank\">Bobine d'allumage DELPHI GN10584-12B1<\/a><p>Delphi<\/p><div class=\"price-container\"><p class=\"price\">31.16 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/dwmfxn3gcpcco9p8mebx.jpg\" alt=\"46303\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/817427-tambour-de-frein-delphi-bf463\" target=\"_blank\">Tambour de frein DELPHI BF463<\/a><p>Delphi<\/p><div class=\"price-container\"><p class=\"price\">19.32 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/obavf4xtxnh4ajpjievx.jpg\" alt=\"41580\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/349213-rotule-de-direction-delphi-ta2339-droite\" target=\"_blank\">Rotule de direction DELPHI TA2339 droite<\/a><p>Delphi<\/p><div class=\"price-container\"><p class=\"price\">8.68 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/exuwa8e79nczzbe2trjc.jpg\" alt=\"38202\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1846919-soupape-dinjection-delphi-r00101dp\" target=\"_blank\">Soupape d'injection DELPHI R00101DP<\/a><p>Delphi<\/p><div class=\"price-container\"><p class=\"price\">214.88 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><\/div><div class=\"swiper-pagination\"><\/div><div class=\"swiper-button-prev\"><\/div><div class=\"swiper-button-next\"><\/div><\/div><\/div>\n<h2>Peut-on r\u00e9parer un capteur NOx ?<\/h2>\n<p>Le remplacement d&rsquo;un capteur NOx peut s&rsquo;av\u00e9rer co\u00fbteux, de sorte que l&rsquo;option de la r\u00e9paration peut sembler tentante. Cependant, avec un composant aussi pr\u00e9cis, la r\u00e9paration ne peut \u00eatre qu&rsquo;une solution \u00e0 court terme avant qu&rsquo;il ne tombe \u00e0 nouveau en panne, ce qui implique une nouvelle intervention.<\/p>\n<h2>Peut-on remplacer un capteur NOx ?<\/h2>\n<p>Oui, il est toujours possible de remplacer le capteur de NOx.<\/p>\n<p>Pour des raisons de co\u00fbt, il peut \u00eatre tentant de remplacer un capteur NOx d\u00e9fectueux par un capteur reconditionn\u00e9. Nous vous recommandons toutefois de n&rsquo;utiliser que des composants neufs et de qualit\u00e9 afin de garantir une dur\u00e9e de vie aussi longue que possible et des performances pr\u00e9cises.<\/p>\n<p>Optez pour les capteurs NOx de haute qualit\u00e9 <a href=\"https:\/\/www.motointegrator.fr\/producteurs\/delphi\/\">Delphi<\/a>, votre partenaire de confiance sur le march\u00e9 de la pi\u00e8ce d\u00e9tach\u00e9e.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qu&rsquo;est-ce qu&rsquo;un capteur d&rsquo;oxyde d&rsquo;azote (NOx) ? Le capteur d&rsquo;oxyde d&rsquo;azote surveille les \u00e9missions d&rsquo;oxyde d&rsquo;azote du v\u00e9hicule pour s&rsquo;assurer qu&rsquo;il respecte les normes d&rsquo;\u00e9mission. Les oxydes d&rsquo;azote (\u00e9galement connus sous le nom de NOx) sont des polluants qui ont un impact \u00e0 la fois sur l&rsquo;environnement et sur la sant\u00e9. Les NOx font g\u00e9n\u00e9ralement [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":16803,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2855],"tags":[7062,7066,7061,2944,7065,7064,7068,7067,7063],"class_list":{"0":"post-16800","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-partenaire","8":"tag-capteur-nox","9":"tag-controle-des-emissions","10":"tag-delphi","11":"tag-fabricant","12":"tag-norme-anti-pollution","13":"tag-norme-euro-6","14":"tag-oxyde-dazote","15":"tag-pieces-de-rechange-delphi","16":"tag-sonde-nox"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Capteur NOx : tout ce qu&#039;il faut savoir | Motointegrator<\/title>\n<meta name=\"description\" content=\"Le capteur NOx surveille les \u00e9missions d&#039;oxyde d&#039;azote du v\u00e9hicule pour s&#039;assurer qu&#039;il respecte les normes d&#039;\u00e9mission. \u25b7 En savoir plus.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.motointegrator.fr\/blog\/quest-ce-quun-capteur-nox\/\" \/>\n<meta property=\"og:locale\" content=\"fr-FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Capteur NOx : tout ce qu&#039;il faut savoir | Motointegrator\" \/>\n<meta property=\"og:description\" content=\"Le capteur NOx surveille les \u00e9missions d&#039;oxyde d&#039;azote du v\u00e9hicule pour s&#039;assurer qu&#039;il respecte les normes d&#039;\u00e9mission. \u25b7 En savoir plus.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.motointegrator.fr\/blog\/quest-ce-quun-capteur-nox\/\" \/>\n<meta property=\"og:site_name\" content=\"Motointegrator.fr Blog\" \/>\n<meta property=\"article:published_time\" content=\"2024-08-19T06:00:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-20T07:24:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.motointegrator.fr\/blog\/wp-content\/uploads\/sites\/6\/2024\/08\/blog_mifr_delphi.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"727\" \/>\n\t<meta property=\"og:image:height\" content=\"484\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"sonia\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"sonia\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.motointegrator.fr\\\/blog\\\/quest-ce-quun-capteur-nox\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.motointegrator.fr\\\/blog\\\/quest-ce-quun-capteur-nox\\\/\"},\"author\":{\"name\":\"sonia\",\"@id\":\"https:\\\/\\\/www.motointegrator.fr\\\/blog\\\/#\\\/schema\\\/person\\\/17a90e15ff55abec4b04ea2c13ccdaae\"},\"headline\":\"Qu&rsquo;est-ce qu&rsquo;un capteur NOx ? 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