{"id":3987,"date":"2023-02-10T13:20:51","date_gmt":"2023-02-10T12:20:51","guid":{"rendered":"https:\/\/diy-leonmotors.de\/?p=3987"},"modified":"2025-06-11T09:13:24","modified_gmt":"2025-06-11T07:13:24","slug":"oxygen-sensor-function-faults-costs","status":"publish","type":"post","link":"https:\/\/diy-leonmotors.de\/en\/lambdasonde-funktion-defekte-kosten\/","title":{"rendered":"Oxygen Sensor Function - Defects & Costs"},"content":{"rendered":"
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Oxygen Sensor Function<\/h1>
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Possible Defects & Costs<\/p><\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n

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Home page<\/a><\/span> \" Oxygen Sensor Function - Defects & Costs<\/span><\/span><\/div><\/div>\n<\/div><\/section>\n\n\n\n
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There is often confusion about the topic of oxygen sensors in vehicles. Many people don\u2019t even know<\/strong> that there are at least two oxygen sensors in a car, both of which play a crucial role in its operation. If an oxygen sensor is faulty, you won\u2019t pass the vehicle inspection, as the emission values will be distorted. How oxygen sensors work in vehicles, their purpose, and how you can prevent a defect are all explained in this article. We\u2019ve also prepared a guide for replacing the diagnostic sensor<\/a><\/span> for you.<\/strong><\/p>\n<\/div>\n<\/div><\/section>\n\n\n\n

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  1. 1) What is the Oxygen Sensor and where is it installed?<\/a>
  2. 2) Preventing Issues with the Oxygen Sensor<\/a>
  3. 3) Lambda sensor costs<\/a>
  4. More Articles<\/a><\/ol>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n<\/div><\/section>\n\n\n\n
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    1) What is the Oxygen Sensor and where is it installed?<\/h2>
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    Nowadays, a modern vehicle has at least two oxygen sensors<\/strong>. These are located on the exhaust system<\/strong> and regulate or monitor the emission values<\/strong>. However, both sensors are similar and can sometimes be used interchangeably. In practice, it is not uncommon for the same sensor to be used as both a control sensor and a diagnostic sensor<\/strong>. This mainly depends on the car model and the manufacturer of the oxygen sensor.<\/p>\n\n\n\n

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    The Control Sensor:<\/span><\/h3><\/div>\n<\/div>\n<\/div><\/section>\n\n\n\n

    The oxygen sensor BEFORE the catalytic converter is the control sensor.<\/strong> The control sensor measures the oxygen content in the exhaust gas of a combustion engine and sends the measured signal to the engine control unit. This unit then adjusts the air-fuel mixture<\/strong> of the engine to regulate<\/strong> the oxygen content in the exhaust gas. This ensures that the engine operates optimally<\/strong> and reduces emissions<\/strong>. Control sensors are essential for optimizing the vehicle's exhaust gas purification and reducing emissions, and they are installed in almost all modern motor vehicles.<\/p>\n\n\n\n

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    Oxygen sensor upstream of the catalytic converter (control sensor)<\/figcaption><\/figure><\/div>\n\n\n\n
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    The Diagnostic Sensor:<\/span><\/h3><\/div>\n<\/div>\n<\/div><\/section>\n\n\n\n

    The oxygen sensor AFTER the catalytic converter is the diagnostic sensor<\/strong> and usually has a longer cable<\/strong> than the control sensor. The diagnostic sensor is primarily used to identify and diagnose issues in the engine or exhaust cleaning system<\/strong>. For instance, it detects faults in the catalytic converter or diesel particulate filter and sends an error code to the engine control unit<\/span><\/a><\/strong>. The diagnostic sensor checks whether the control sensor is functioning correctly and can also compensate for deviations<\/strong>. Additionally, the diagnostic sensor is used to read the emission values for the vehicle inspection or emissions sticker.<\/p>\n\n\n\n

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    Oxygen sensor after the catalytic converter (diagnostic sensor)<\/figcaption><\/figure><\/div>\n<\/div>\n<\/div><\/section>\n\n\n\n
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    2) Preventing Issues with the Oxygen Sensor<\/h2>
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    There are several steps you can take to prevent a defect in an oxygen sensor<\/strong>:<\/p>\n\n\n\n

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    <\/path><\/svg><\/span>Keep the engine clean:<\/strong> A clean engine reduces deposits in the oxygen sensor, which can lead to faults.<\/span><\/div>\n\n\n\n
    <\/a><\/path><\/svg><\/span>Use high quality fuel: <\/strong>Always use the better fuel for your vehicle. If you use poor quality fuel, this can lead to deposits in the lambda sensor.<\/span><\/div>\n\n\n\n
    <\/path><\/svg><\/span>Check the air filter regularly: <\/strong>A clogged air filter can impair the performance of the engine and lead to deposits in the oxygen sensor.<\/span><\/div>\n\n\n\n
    <\/path><\/svg><\/span>Check the exhaust system:<\/strong> Make sure that the exhaust system is in good condition and that there are no leaks. Leaks in the exhaust system can lead to falsified values or to error messages in the engine control unit.<\/span><\/div>\n<\/div><\/div>\n\n\n\n

    Don\u2019t forget that the oxygen sensor is a wear part<\/strong> and will inevitably need to be replaced sooner or later. However, early detection of issues and regular maintenance can help extend the lifespan of the oxygen sensor.<\/p>\n<\/div>\n<\/div><\/section>\n\n\n\n

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    3) Lambda sensor costs<\/h2>
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    The cost of an oxygen sensor can vary depending on the manufacturer, model, and year<\/strong> of the vehicle. Additionally, you need to differentiate between a control sensor and a diagnostic sensor.<\/p>\n\n\n\n

    The price for a diagnostic sensor<\/span> can range between 20 and 170 euros<\/span>.
    The price for a control sensor<\/span> can range between 50 and 250 euros<\/span>.<\/strong><\/p>\n\n\n\n

    In some cases, it may be necessary to replace the oxygen sensor along with other parts<\/strong>, such as the exhaust manifold or exhaust pipe. In such cases, the repair can become more expensive.
    Additionally, you should ensure that you use a high-quality and original replacement oxygen sensor. Original oxygen sensors have a longer lifespan<\/strong> and function reliably.<\/p>\n\n\n\n

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    *Favorable offers for Oxygen Sensors<\/span> can be found here:<\/p>\n\n\n\n

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    Auf AUTODOC ansehen<\/div><\/a><\/div><\/div>\n<\/div><\/div>\n<\/div>\n<\/div><\/section>\n\n\n\n

    We have prepared a guide for <\/strong>replacing the diagnostic sensor<\/span><\/strong><\/a> for you. The replacement is simple and can be done at home without much effort.<\/a><\/p>\n\n\n\n


    * Affiliate links are marked with a *. Nothing changes for you and the offer\/price remains the same. You can find more information about affiliate links     here<\/strong>.<\/a><\/p>\n<\/div>\n<\/div><\/section>\n\n\n\n

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    Oft herrscht Verwirrung beim Thema Lambdasonde am Fahrzeug. Viele wissen gar nicht, dass es mindestens zwei Lambdasonden im Fahrzeug gibt, die eine wichtige Rolle im Auto \u00fcbernehmen. Mit einer defekten Lambdasonde bekommst du auch keine T\u00dcV Plakette\/Pickerl, da die Abgaswerte dadurch verf\u00e4lscht sind. Wie die Lambdasonden am Fahrzeug funktionieren, was ihre Aufgabe ist und wie […]<\/p>\n","protected":false},"author":1,"featured_media":3988,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[7],"tags":[240,234,241,63,237,233,236,235,238,239],"class_list":["post-3987","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wissen-tipps","tag-abgas","tag-diagnosesonde","tag-emmisionen","tag-kosten","tag-ksoten-lambdasonde","tag-lambdasonde","tag-lambdasonde-funktion","tag-regelsonde","tag-sonde","tag-ursachen-defekte"],"yoast_head":"\nLambdasonde Funktion - Defekte & Kosten<\/title>\n<meta name=\"description\" content=\"Die Funktionen der zwei im Abgastrakt verbauten Lambdasonden, die Regelsonde und die Diagnoseesonde, werden dir in diesem Beitrag erkl\u00e4rt.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/diy-leonmotors.de\/en\/oxygen-sensor-function-faults-costs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lambdasonde Funktion - Defekte & Kosten\" \/>\n<meta property=\"og:description\" content=\"Die Funktionen der zwei im Abgastrakt verbauten Lambdasonden, die Regelsonde und die Diagnoseesonde, werden dir in diesem Beitrag erkl\u00e4rt.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/diy-leonmotors.de\/en\/oxygen-sensor-function-faults-costs\/\" \/>\n<meta property=\"og:site_name\" content=\"DIY-Leonmotors\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-10T12:20:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-11T07:13:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/diy-leonmotors.de\/wp-content\/uploads\/2023\/02\/Lambdasonde-Funktion-Beitragsbild.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1545\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"BrankoM_WP\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"BrankoM_WP\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/diy-leonmotors.de\\\/lambdasonde-funktion-defekte-kosten\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/diy-leonmotors.de\\\/lambdasonde-funktion-defekte-kosten\\\/\"},\"author\":{\"name\":\"BrankoM_WP\",\"@id\":\"https:\\\/\\\/diy-leonmotors.de\\\/#\\\/schema\\\/person\\\/8a66961dcc37e4e8f9f17daa50b7695c\"},\"headline\":\"Lambdasonde Funktion – Defekte & Kosten\",\"datePublished\":\"2023-02-10T12:20:51+00:00\",\"dateModified\":\"2025-06-11T07:13:24+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/diy-leonmotors.de\\\/lambdasonde-funktion-defekte-kosten\\\/\"},\"wordCount\":701,\"publisher\":{\"@id\":\"https:\\\/\\\/diy-leonmotors.de\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/diy-leonmotors.de\\\/lambdasonde-funktion-defekte-kosten\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/diy-leonmotors.de\\\/wp-content\\\/uploads\\\/2023\\\/02\\\/Lambdasonde-Funktion-Beitragsbild.jpg\",\"keywords\":[\"Abgas\",\"Diagnosesonde\",\"Emmisionen\",\"Kosten\",\"Ksoten Lambdasonde\",\"Lambdasonde\",\"Lambdasonde Funktion\",\"Regelsonde\",\"Sonde\",\"Ursachen & Defekte\"],\"articleSection\":[\"WISSEN & TIPPS\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/diy-leonmotors.de\\\/lambdasonde-funktion-defekte-kosten\\\/\",\"url\":\"https:\\\/\\\/diy-leonmotors.de\\\/lambdasonde-funktion-defekte-kosten\\\/\",\"name\":\"Lambdasonde Funktion - 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Viele wissen gar nicht, dass es mindestens zwei Lambdasonden im Fahrzeug gibt, die eine wichtige Rolle im Auto \u00fcbernehmen. Mit einer defekten Lambdasonde bekommst du auch keine T\u00dcV Plakette\/Pickerl, da die Abgaswerte dadurch verf\u00e4lscht sind. 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