{"product_id":"a-premium-o2-oxygen-sensor-for-audi-volkswagen-heated-4-wire-threaded-downstream-replacement","title":"A-Premium O2 Oxygen Sensor for Audi \u0026 Volkswagen — Heated 4-Wire Threaded Downstream Replacement","description":"\u003cp\u003e\u003cstrong\u003eThe A-Premium O2 oxygen sensor is a direct-fit, heated downstream threaded replacement designed to restore accurate exhaust oxygen readings on many Audi and Volkswagen models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement oxygen sensor (part references 250-24672 \/ 350-34223) is a 4-wire, heated, threaded unit sold individually in boxed packaging. It's engineered for downstream (and specific center\/rear) locations across a broad range of Audi A3\/A4\/A5\/A6\/Q3\/Q5\/TT RS\/Q7 and Volkswagen Beetle\/Golf\/Jetta\/Passat\/CC\/Tiguan\/Touareg\/Eos models listed below. The sensor’s male connector and four terminals provide the heated functionality modern engine management systems expect.\u003c\/p\u003e\n\n\u003ch3\u003eWhich cars and engine types is this A-Premium O2 sensor compatible with?\u003c\/h3\u003e\n\u003cp\u003eThis sensor fits many model years and engine variations; check the exact fitment line for the specific mounting position (downstream, center or rear). Compatibility spans 4- and 5-cylinder gasoline engines and several V6\/V8 variants across Audi and Volkswagen platforms.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAudi examples: A3 (11–13), A4 (09–16), A5 (10–17), A6 (12–15), Q3\/Q5, TT RS and specific Quattro models.\u003c\/li\u003e\n  \u003cli\u003eVolkswagen examples: Beetle, Golf, GTI, Jetta, Passat\/Passat CC, Tiguan, Eos and Touareg fits across various years and engine sizes.\u003c\/li\u003e\n  \u003cli\u003eMounting positions: downstream, downstream rear\/center right, center and side-specific downstream L\/R depending on model.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this heated four-wire sensor benefit my vehicle's performance?\u003c\/h3\u003e\n\u003cp\u003eA heated 4-wire oxygen sensor achieves operating temperature faster than an unheated unit, improving fuel trim responsiveness and emissions control after cold starts. Faster warm-up reduces time the engine runs in open-loop, letting the ECU use precise oxygen feedback sooner.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeater circuit speeds sensor readiness and accuracy.\u003c\/li\u003e\n  \u003cli\u003eFour-wire design separates signal and heater power for stable readings.\u003c\/li\u003e\n  \u003cli\u003eThreaded mount provides a direct, leak-resistant installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and electrical connection?\u003c\/h3\u003e\n\u003cp\u003eInstallation uses the sensor’s threaded mounting and a male 4-pin connector that plugs into the factory harness; basic hand tools and an oxygen sensor socket are typically all that’s needed. Always verify the correct sensor location (downstream, center or rear) for your vehicle before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThreaded mounting matches factory ports—no custom fitting required.\u003c\/li\u003e\n  \u003cli\u003eMale 4-terminal connector mates with the vehicle harness for plug-and-play convenience.\u003c\/li\u003e\n  \u003cli\u003eSupplied individually in a box with one sensor per package for easy replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I confirm the right part number for my vehicle?\u003c\/h3\u003e\n\u003cp\u003eCross-check your vehicle’s original oxygen sensor reference against A-Premium part numbers 250-24672 or 350-34223 and verify engine displacement, year and mounting location. If your vehicle has codes or symptoms pointing to a downstream or center O2 sensor, match those specifics to the listed fitment lines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReference numbers included: 250-24672, 350-34223 for quick compatibility checks.\u003c\/li\u003e\n  \u003cli\u003eConfirm engine size and year against the detailed fitment lists supplied above.\u003c\/li\u003e\n  \u003cli\u003eWhen in doubt, consult your vehicle VIN or a trusted parts lookup tool before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This A-Premium sensor is intended for DIY mechanics, independent repair shops and fleet technicians who need a reliable, direct-fit downstream or specified center\/rear oxygen sensor replacement for Audi and Volkswagen vehicles. It’s suitable for owners replacing a defective O2 sensor, troubleshooting emissions or restoring correct fuel trims after exhaust repairs. Confirm the exact model year, engine size and sensor location before ordering to ensure a proper fit.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this A-Premium oxygen sensor a direct replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s a direct-fit, threaded, heated 4-wire sensor that matches factory connections for listed Audi and VW models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which part numbers does this sensor replace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This unit corresponds to reference numbers 250-24672 and 350-34223 for compatibility checks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":55167262851415,"sku":"B07GH5ZF1P","price":42.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/a-premium-o2-front-packaging.jpg?v=1790380684","url":"https:\/\/britishgarage.co.uk\/products\/a-premium-o2-oxygen-sensor-for-audi-volkswagen-heated-4-wire-threaded-downstream-replacement","provider":"British Garage","version":"1.0","type":"link"}