Fitment:
Compatible with Mercedes-Benz diesel vehicles including C-Class (W205), E-Class (W213), and GLC (W253).
OEM reference numbers: A0009057803, 5WK97382.
Used in SCR (Selective Catalytic Reduction) emission control system.
Installed in exhaust NOx monitoring system (upstream or downstream position depending on model configuration).
Fitment must be confirmed by OEM number and connector type before installation.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM numbers A0009057803 or 5WK97382 with your original sensor and verify connector shape and wiring.

Q2: Where is this NOx sensor installed?
A2: It is installed in the exhaust aftertreatment system in SCR-equipped Mercedes-Benz diesel vehicles.

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

Q4: Is this compatible with both C-Class and E-Class?
A4: Yes, it is commonly used on W205, W213, and W253 platforms depending on engine variant.

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