{"product_id":"hella-pagid-355252141-brake-pad-wear-sensor-front","title":"Hella Pagid 355252141 Brake Pad Wear Sensor, Front","description":"\u003cp class=\"nvn-hero\"\u003eThe Hella Pagid 355252141 is the genuine front disc brake pad wear sensor for the Mercedes GLA, CLA, A-Class and B-Class small-car platform, plus the Infiniti Q30 and QX30 built on it. It carries a 94mm harness and a two-pin female connector that plugs straight into the factory socket, so the dash warns you the moment your pads hit their limit.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eWhen your brake pads wear down to the limit, this is the part that tells you about it. The Hella Pagid 355252141 is a front disc brake pad wear sensor built for the small-car Mercedes-Benz platform and its Infiniti cousins. It has a simple job, but an important one. It rides along with the brake pad, and when the friction material wears thin enough, it completes the circuit that lights the wear warning on your dash. No guessing, no pulling wheels to eyeball pad thickness. The car tells you.\u003c\/p\u003e\n\u003cp\u003eThis one carries a 94 millimeter wiring harness and a two-pin female connector, and it's sold as a single sensor. That length and connector matter, because the same brake family uses different harness lengths front to rear. Get the 94mm front sensor when the car calls for it and the plug drops right into the factory connector. It's the genuine Hella Pagid part, catalog reference 8DK 355 252-141, replacing Mercedes OE A1695401617 along with the Infiniti and Nissan numbers 410685DN0A and 479105DA9A.\u003c\/p\u003e\n\u003cp\u003eFitment covers the Mercedes MFA small-car range: GLA250 and GLA45 AMG, CLA250 and CLA45 AMG, plus the A-Class and B-Class on the same architecture. Because Infiniti built the Q30 and QX30 on that Mercedes platform, this sensor crosses to those too. Model years run roughly from the mid-2010s forward. The catalog family is broad and Mercedes reused part-group numbers across a lot of chassis, so always verify against your VIN or match the old sensor's harness length and connector before you order. If your old sensor measures 94mm to the plug with a two-pin connector, you're in the right place.\u003c\/p\u003e\n\u003cp\u003eHere's how it earns its keep. The sensor body sits in a pocket on the brake pad, with a loop of wire exposed near the friction surface. As the pad wears, the rotor eventually reaches that loop, breaks the circuit, and the brake wear lamp comes on. It's a one-time part by nature. Once it's triggered, the loop is damaged, so you replace the sensor every time you replace the pads it was riding with. Reusing a tripped sensor is the number one reason a wear light won't clear after a brake job.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable doing their own pads. With the caliper off and the new pads going in, press the sensor into the pad's sensor pocket, route the harness along the factory clips so it doesn't rub the rotor or wheel, and click the connector into the chassis plug. Keep the wire away from moving suspension and heat. That's it. If the dash light doesn't clear after the job, check that the connector is fully seated and that you didn't pinch the harness.\u003c\/p\u003e\n\u003cp\u003eWhy genuine Hella Pagid? Pagid is an OE-level brake brand, and the wear sensor is one of those small parts where fit precision matters more than price. A sensor with the wrong connector or a harness that's an inch too short leaves you splicing wires or zip-tying a loop where it'll chafe through in a season. This one plugs in and routes the way the factory intended. For a part that protects your rotors from getting chewed up by worn-out pads, that's money well spent.\u003c\/p\u003e\n\u003cp\u003eA few honest notes. This is the front-axle sensor for these platforms, and many of these cars run a sensor on one front corner only, so check how many yours actually has before buying a pair. It's a sensor, not a pad, so it doesn't come with brake pads, clips, or grease. And while the Mercedes and Infiniti fitment is well documented, the broader catalog lists hundreds of configurations, so a quick VIN check or a measurement of your old sensor is the surest way to confirm you've got the right one.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eFront disc brake pad wear sensor for the Mercedes MFA platform and Infiniti Q30 and QX30, so the right corner gets the right part.\u003c\/li\u003e\n  \u003cli\u003e94 mm wiring harness with a two-pin female connector that plugs straight into the factory chassis socket, no splicing.\u003c\/li\u003e\n  \u003cli\u003eGenuine Hella Pagid, catalog reference 8DK 355 252-141, built to OE fit and tolerance.\u003c\/li\u003e\n  \u003cli\u003eReplaces Mercedes OE A1695401617 and Infiniti and Nissan 410685DN0A and 479105DA9A for a direct swap.\u003c\/li\u003e\n  \u003cli\u003eTriggers the dash brake-wear warning the moment the pads reach their limit, so you replace on time instead of ruining rotors.\u003c\/li\u003e\n  \u003cli\u003eSold as a single sensor, one per bag, the correct one-time replacement for a brake job.\u003c\/li\u003e\n  \u003cli\u003eMade in Germany to Hella Pagid quality standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Hella Marine reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat vehicles does the Hella Pagid 355252141 fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's the front brake pad wear sensor for the Mercedes MFA small-car platform, including the GLA250, GLA45 AMG, CLA250, CLA45 AMG, A-Class and B-Class, plus the Infiniti Q30 and QX30 built on the same architecture. Model years run from the mid-2010s forward. The catalog family is broad, so always verify by VIN.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a front or rear sensor?\u003c\/summary\u003e\n    \u003cp\u003eFront axle. The harness length and connector differ front to rear on these cars, so match your old sensor or check your VIN before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat OE numbers does it replace?\u003c\/summary\u003e\n    \u003cp\u003eMercedes A1695401617 (also written 1695401617 or 169 540 16 17) and the Infiniti and Nissan numbers 410685DN0A and 479105DA9A. The catalog reference is 8DK 355 252-141.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to replace the wear sensor every time I change pads?\u003c\/summary\u003e\n    \u003cp\u003eYes, whenever the sensor has tripped. Once the rotor reaches the sensor loop and lights the dash, that sensor is finished. Reusing a tripped sensor is the most common reason the warning light won't clear after a brake job.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow long is the harness?\u003c\/summary\u003e\n    \u003cp\u003e94 millimeters, about 3.7 inches, measured to the connector. It uses a two-pin female plug.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this come with brake pads?\u003c\/summary\u003e\n    \u003cp\u003eNo. It's the wear sensor only, sold as a single sensor. You'll pair it with the correct pads, clips, and grease for your car separately.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eMy car lists sensors for more than one position. How many do I need?\u003c\/summary\u003e\n    \u003cp\u003eMany of these platforms use a single front wear sensor on one corner, but some configurations differ. Count the sensors on your car or check the VIN before buying one versus a pair.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy did my brake wear light stay on after I changed the sensor?\u003c\/summary\u003e\n    \u003cp\u003eUsually the connector isn't fully seated, or an old tripped sensor is still in the circuit on another corner. Confirm the plug clicks home and that every tripped sensor on the car was replaced.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a genuine Hella Pagid part?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's the genuine Hella Pagid sensor, catalog 8DK 355 252-141, made in Germany.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eHella Pagid 355252141 Front Disc Brake Pad Wear Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHella Pagid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003ePagid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e355252141\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e4082300389791\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCatalog Reference\u003c\/th\u003e\n\u003ctd\u003e8DK 355 252-141\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTechnical Information Number\u003c\/th\u003e\n\u003ctd\u003eP8641\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAxle Position\u003c\/th\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHarness Length\u003c\/th\u003e\n\u003ctd\u003e94 mm (3.7 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConnector Type\u003c\/th\u003e\n\u003ctd\u003eFemale, 2-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity Sold\u003c\/th\u003e\n\u003ctd\u003eSingle (1 sensor per bag)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSensor Type\u003c\/th\u003e\n\u003ctd\u003eWarning contact, brake pad wear\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOE Number (Mercedes-Benz)\u003c\/th\u003e\n\u003ctd\u003eA1695401617 \/ 1695401617\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOE Number (Infiniti \/ Nissan)\u003c\/th\u003e\n\u003ctd\u003e410685DN0A \/ 479105DA9A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFits (verify by VIN)\u003c\/th\u003e\n\u003ctd\u003eMercedes-Benz GLA, CLA, A-Class, B-Class; Infiniti Q30, QX30\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What vehicles does the Hella Pagid 355252141 fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the front brake pad wear sensor for the Mercedes MFA small-car platform, including the GLA250, GLA45 AMG, CLA250, CLA45 AMG, A-Class and B-Class, plus the Infiniti Q30 and QX30 built on the same architecture. Model years run from the mid-2010s forward. The catalog family is broad, so always verify by VIN.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a front or rear sensor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Front axle. The harness length and connector differ front to rear on these cars, so match your old sensor or check your VIN before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What OE numbers does it replace?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Mercedes A1695401617 (also written 1695401617 or 169 540 16 17) and the Infiniti and Nissan numbers 410685DN0A and 479105DA9A. The catalog reference is 8DK 355 252-141.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to replace the wear sensor every time I change pads?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, whenever the sensor has tripped. Once the rotor reaches the sensor loop and lights the dash, that sensor is finished. Reusing a tripped sensor is the most common reason the warning light won't clear after a brake job.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How long is the harness?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"94 millimeters, about 3.7 inches, measured to the connector. It uses a two-pin female plug.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does this come with brake pads?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. It's the wear sensor only, sold as a single sensor. You'll pair it with the correct pads, clips, and grease for your car separately.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"My car lists sensors for more than one position. How many do I need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Many of these platforms use a single front wear sensor on one corner, but some configurations differ. Count the sensors on your car or check the VIN before buying one versus a pair.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why did my brake wear light stay on after I changed the sensor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Usually the connector isn't fully seated, or an old tripped sensor is still in the circuit on another corner. Confirm the plug clicks home and that every tripped sensor on the car was replaced.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a genuine Hella Pagid part?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's the genuine Hella Pagid sensor, catalog 8DK 355 252-141, made in Germany.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella Pagid","offers":[{"title":"Default Title","offer_id":67597840744541,"sku":"2011000","price":8.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_a0bdb40f-d43b-46c8-a3f0-d58c663eecae.jpg?v=1790926127","url":"https:\/\/nvnmarine.com\/products\/hella-pagid-355252141-brake-pad-wear-sensor-front","provider":"NVN Marine","version":"1.0","type":"link"}