Fitment

Compatible with BMW Euro 5 / Euro 6 diesel SCR (AdBlue) systems

Vehicle applications include:
BMW 3 Series E90 335d (2006–2011)
BMW 3 Series F30 328d (2014–2018)
BMW X5 E70 / F15 3.0d / 35d
BMW X6 E71 35d
BMW 5 Series F10/F11 530d / 535d
BMW X3 F25 20d / 30d
Other BMW diesel SCR platforms using M57 / N47 / N57 engines

FAQ

Q1: What is this NOx sensor used for?

A1: It measures nitrogen oxide (NOx) in diesel exhaust and sends data to the SCR system to control AdBlue (DEF) injection and reduce emissions.

Q2: Is 5WK96756A the correct part?

A2: Yes.
5WK96756A (and related 5WK9 6684A references) are Bosch/Continental NOx sensor part numbers used in BMW diesel SCR systems.

Q3: Is this an upstream or downstream sensor?

A3: This listing is commonly used as the upstream NOx sensor, but exact position depends on model and exhaust configuration.

Q4: Which engines use this sensor?

A4: Mainly BMW M57, N47, and N57 diesel engines used across 2.0L and 3.0L diesel platforms.

Q5: What are common failure symptoms?

A5:

• Check engine light
• SCR / AdBlue system warning
• NOx efficiency or signal faults
• Limp mode (reduced engine power)