Fitment:
Compatible with Mercedes-Benz diesel models including Mercedes-Benz E-Class W213, Mercedes-Benz CLS W257, and Mercedes-Benz E-Class W238.
OEM reference number: A0009054604.
Used in SCR (Selective Catalytic Reduction) emission control system for NOx monitoring.
Installed in exhaust aftertreatment system (upstream or downstream position depending on vehicle configuration).
Fitment must be confirmed by OEM part number and connector specification before installation.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM number A0009054604 with your original sensor and verify connector type, wiring length, and mounting position.

Q2: Where is this NOx sensor installed?
A2: It is installed in the SCR exhaust aftertreatment system of Mercedes-Benz diesel vehicles, before or after the catalytic converter depending on configuration.

Q3: What are common failure symptoms?
A3: Engine warning light, SCR/AdBlue system fault, incorrect NOx readings, or reduced engine performance.

Q4: Is this compatible with multiple Mercedes models?
A4: Yes, it is commonly used on W213, W238, and W257 platforms depending on engine variant.

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