BMW diesel vehicles with SCR AdBlue Euro 6 emission system including

• BMW 3 Series G20 2.0 / 3.0 diesel
• BMW 3 Series G21 Touring diesel
• BMW 5 Series G30 / G31 diesel models
• BMW 6 Series G32 diesel Gran Turismo
• BMW X3 G01 diesel
• BMW X4 G02 diesel
• BMW X5 G05 diesel
• BMW X6 G06 diesel
• BMW X7 G07 diesel
• Selected B47 and B57 diesel engine vehicles

OE reference
13628594553
8594553
0281008500
0281008501

FAQ

What is this NOx sensor used for

It measures nitrogen oxide levels in diesel exhaust and sends data to ECU for SCR AdBlue emission control system

Is this sensor inlet or outlet type

It can be installed as inlet or outlet depending on SCR system configuration and vehicle exhaust layout

Are all BMW NOx sensors interchangeable

No BMW uses ECU coded NOx sensors and different OE numbers or revisions are not interchangeable

What system does it work with

SCR Selective Catalytic Reduction system using AdBlue injection for Euro 6 diesel emissions compliance

What are common failure symptoms

Engine warning light AdBlue fault SCR system error limp mode reduced power and NOx sensor communication fault