FITMENT:
Compatible with Mercedes-Benz Euro 6 diesel commercial vehicles equipped with SCR emission systems, including:

• Actros (Euro 6 trucks)
• Atego (light/medium-duty trucks)
• Citan (diesel variants with SCR system)

OEM reference numbers: 5WK97330A, A2C87396000.
Used in diesel exhaust aftertreatment system for NOx monitoring (AdBlue/DEF SCR system).
Installed in exhaust system (inlet or outlet position depending on engine and SCR layout).
Fitment must be confirmed by OEM part number and emission system configuration before installation.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM numbers 5WK97330A or A2C87396000 with your original sensor and verify connector type, voltage, and SCR system layout.

Q2: Where is this NOx sensor installed?
A2: It is installed in the SCR exhaust aftertreatment system on Mercedes-Benz Euro 6 diesel engines, either upstream or downstream of the SCR catalyst depending on configuration.

Q3: What are common failure symptoms?
A3: Engine warning light, SCR/AdBlue system faults, incorrect NOx readings, reduced engine power, or limp mode activation.

Q4: Is this compatible with all Actros, Atego, and Citan models?
A4: No, compatibility depends on engine variant and emission system configuration. OEM number must be matched exactly.

Q5: Does replacement require programming?
A5: Some vehicles require diagnostic reset or SCR adaptation after installation.