Fitment

Fits for:

• BMW 1 Series (E81 / E87 / E88 / E82)
• BMW 3 Series (E90 / E91 / E92 / E93)
• Some BMW 5 Series applications with N43/N53 emissions systems (market dependent)
• Engine: BMW N43 / N53 petrol engines with NOx storage catalyst (Euro 5 system)
• Position: NOx sensor (before or after catalyst depending on system layout)
• OE / Cross References: 5WK96621G / 758713002 / 11787587130 / 11787582326 / 11787580517 / 5WK96621F / 5WK96621H / SNS-type NOx sensor family

FAQ

Q1: Are 5WK96621G and 758713002 the same sensor?
A1: Yes. 758713002 is the BMW OE number, and 5WK96621G is the Continental/Vitesco reference used for the same NOx sensor module in BMW N43/N53 systems.

Q2: What vehicles use this sensor?
A2: It is commonly used on BMW 1 Series (E81/E87/E88/E82) and BMW 3 Series (E90/E91/E92/E93) equipped with N43 petrol engines and NOx storage catalyst systems.

Q3: Is this inlet or outlet sensor?
A3: It depends on configuration. BMW N43 systems may use NOx sensors before or after the catalyst depending on emissions strategy.

Q4: What does this sensor do?
A4: It measures nitrogen oxide (NOx) levels in the exhaust system and sends data to the ECU to manage fuel mixture and NOx storage catalyst regeneration, helping maintain Euro 5 emissions compliance.