Fitment

Fits for:

• BMW 1 Series (E81 / E87) 116i / 118i / 120i (N43 engine)
• BMW 3 Series (E90 / E91 / E92 / E93) 316i / 318i / 320i (N43 engine)
• BMW 5 Series (selected N43/N53-related SCR configurations depending on market)
• BMW X1 / X3 / X5 (some petrol/diesel variants depending on emissions system setup)
• Engine: BMW N43 gasoline direct injection + NOx storage catalyst systems (Euro 5)
• Position: NOx sensor (before or after catalyst depending on configuration)
• OE / Cross References: 5WK96621J / 758713005 / 11787587130 / 11787582326 / 11787580517 / 5WK96621K / SNS-type NOx sensor family

FAQ

Q1: Are 5WK96621J and 758713005 the same sensor?
A1: Yes. 5WK96621J is the Continental/Vitesco reference number, and 758713005 is the BMW OE number for the same NOx sensor module used in BMW N43 emissions systems.

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

Q3: Is this inlet or outlet sensor?
A3: It depends on the system layout. BMW N43 engines typically use NOx sensors in different positions before or after the catalyst depending on emissions control strategy.

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