Fitment

Fits for:

• BMW 1 Series (E81 / E87) 116i / 118i / 120i
• BMW 3 Series (E90 / E91 / E92 / E93) 316i / 318i / 320i
• BMW 5 Series (E60 / E61 selected petrol variants with NOx system)
• BMW X1 / X3 / X5 (select N43/N53 related NOx applications depending on market)
• Engine: BMW N43 / N53 petrol engines with NOx storage catalyst (Euro 5 system)
• Position: NOx sensor (before or after catalytic converter depending on system design)
• OE / Cross References: 758712903 / 5WK96610L / 11787587129 / 11787587128 / 11787582327 / 11787580518 / SNS-type NOx sensor family

FAQ

Q1: Are 758712903 and 5WK96610L the same sensor?
A1: Yes. 758712903 is the BMW OE number, and 5WK96610L is the Continental/Vitesco reference used for the same NOx sensor module in BMW N43/N53 emissions systems.

Q2: What vehicles use this sensor?
A2: It is commonly used on BMW E90, E91, E87, E60 and related models equipped with N43 petrol engines and NOx storage catalyst systems (Euro 5 emissions).

Q3: Is this inlet or outlet sensor?
A3: It depends on the vehicle configuration. BMW N43/N53 systems may use NOx sensors positioned 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 emissions compliance and engine efficiency.