{"product_id":"holstein-2abs4038-abs-wheel-speed-sensor-rear","title":"Holstein 2ABS4038 ABS Wheel Speed Sensor - Rear","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eHolstein ABS Wheel Speed Sensor 2ABS4038 is a rear sensor application for a wide range of Audi models. It is listed for rear fitment on Audi A4, A5, A6, Q5, Q7, Q8, and related performance and electric variants, with coverage that includes applications without a harness where noted.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear ABS wheel speed sensor application for Audi vehicles.\u003c\/li\u003e\n\u003cli\u003eDirect fit coverage across multiple Audi platforms and model years.\u003c\/li\u003e\n\u003cli\u003eApplication notes include without-harness configurations where specified.\u003c\/li\u003e\n\u003cli\u003eHolstein Parts identification for catalog matching and service replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eHolstein 2ABS4038 is an ABS wheel speed sensor built for rear axle applications across a broad Audi fitment range. Coverage includes Audi A4, A5, A6, Q5, Q7, Q8, RS, S, and SQ models, along with e-tron variants where listed. This part number, 2ABS4038, is used for rear sensor replacement on vehicles that rely on accurate wheel speed input for ABS and stability system operation. This part cross-references Audi OE numbers 4M0-927-807-B and 4M0-927-807-C for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eABS warning lights caused by a failed wheel speed sensor.\u003c\/li\u003e\n\u003cli\u003eTraction control or stability control faults tied to wheel speed signal loss.\u003c\/li\u003e\n\u003cli\u003eIntermittent speed signal readings from a worn rear sensor.\u003c\/li\u003e\n\u003cli\u003eBrake system fault codes related to rear wheel speed input.\u003c\/li\u003e\n\u003cli\u003eService replacement needs on Audi rear sensor applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eConfirm the vehicle’s rear sensor configuration and note whether the application is listed without a harness before ordering. Match the part number 2ABS4038 to the vehicle’s exact fitment row, since Audi coverage varies by model, year, and equipment package. Inspect the sensor mounting area and connector condition during replacement to avoid repeat faults.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eHolstein Parts cataloging supports OE-style application matching for the listed Audi fitments. Use the confirmed vehicle listing to verify rear application coverage before installation.\u003c\/p\u003e","brand":"Holstein","offers":[{"title":"Default Title","offer_id":53573923831989,"sku":"GQFV-2ABS4038","price":46.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/4H_2ABS4038_Fro.jpg?v=1792560164","url":"https:\/\/www.partcatalog.com\/products\/holstein-2abs4038-abs-wheel-speed-sensor-rear","provider":"PartCatalog","version":"1.0","type":"link"}