Fitment
Compatible with Mercedes-Benz Euro 6 diesel emission systems (SCR / AdBlue)

Vehicle applications include:
Mercedes-Benz W212
Mercedes-Benz W204
Mercedes-Benz X204
Mercedes-Benz W166
Mercedes-Benz Sprinter 2500
Mercedes-Benz Sprinter 3500
Other Mercedes-Benz diesel vehicles using OEM part number 5WK97338A / A000905-series SCR systems

FAQ

Q1: What is the function of this NOx sensor?
A1: It measures nitrogen oxide levels in diesel exhaust and sends data to the SCR system to control AdBlue injection and reduce emissions.

Q2: Where is this sensor installed?
A2: It is installed in the exhaust aftertreatment system, typically upstream or downstream of the SCR catalyst depending on vehicle configuration.

Q3: Is part number matching required?
A3: Yes, exact matching of 5WK97338A is required for correct compatibility.

Q4: Is this used across multiple Mercedes platforms?
A4: Yes, it is commonly used across C-Class, E-Class, GLK, ML/GLE, and Sprinter diesel models depending on emission setup.

Q5: What are common failure symptoms?
A5: Engine warning light, AdBlue/SCR system faults, NOx sensor error codes, or reduced engine performance mode.