The AF sensor is also known as the NOx sensor control unit for emissions control and is used before the catalytic converter (catalytic converter).
Replacing your 851878901 5WK96697A sensor probe with our unit will save you a fortune, solve your NOX problems, and get you back in compliance with environmental emissions laws.
Types of Common Errors:
2B08 Engine electronics: nitrogen oxide sensor, heater
30E9 Nitrous oxide catalyst, aging
2EAE No message from nitrogen oxide sensor 1
2AEC Nitrogen Oxide Sensor Self-Diagnosis
2AF0; 2B05 nitric oxide sensor, heating
2AF2; 2B06; 2B09 Nitric Oxide Probe, Linear Lambda
2AF4; 2B07; 2B0A Electrical NOx sensor
2AF6; 2AFB; 2B0B Nitric Oxide Sensor, Binary Lambda
2AF9 NOx sensor, NOx signal: coast mode control
2EAE NOx sensor missing message (timeout)
30D6 nitric oxide sensor, plausibility
30D8 NOx sensor, sensor damaged
30DA NOx sensor, warm-up time
30DC nitric oxide sensor, heating
30DE NOx Sensor – Lambda Sensor Before Catalytic Converter, NOx Sensor Korrelation 30E0, Offset Nitrogen Oxide Sensor
30E2, 30E4 nitrogen oxide sensor for boost testing, 30E6 nitrogen oxide sensor for aging, dynamics
25C200 Nitrogen oxide sensor after SCR catalyst, signal: open circuit
25C300 Nitrogen oxide sensor after SCR catalyst, signal: short circuit to ground or positive
2BC500 Nitrogen oxide sensor downstream of SCR catalyst, message: missing
2BC700 Nitrogen oxide sensor downstream of SCR catalyst, message: missing
Continental Product Code:
5WK9 6697A
5WK96697A
Most compatible OEM part numbers
13628589844 858984401 5WK96697C
13628576469 857646901 5WK96697B
13627812528 781252802 5WK96639B
7812528015WK96639A
13628511664
13628509719
BMW Compatibility List:
1 Series F20 F21 LCI Facelift 2014 2015 2016 2017 2018 2019
2 Series F22 F23 LCI Facelift 2016-2019
3 Series F30 F31 LCI Facelift 2012-2018
E70 X52 008-2010
E70 X5 LCI Restyling 2010-2013
F15 X5 3.0d diesel 2013-2018
X6 E71 2009-2014
X6 F16 2014-2019
This list is not complete, the NOx sensor may also fit other car models.
