FITMENT:
Compatible with Mercedes-Benz diesel vehicles equipped with SCR emission systems.
Common applications include GLK250, Sprinter 2500/3500, and select W204 / W212 diesel platforms depending on emission configuration.
OEM reference numbers: 5WK96657A, A0091530728.
Used in diesel exhaust aftertreatment system for NOx monitoring (AdBlue/DEF SCR system).
Installed in exhaust system (inlet or outlet position depending on configuration).
Fitment must be confirmed by OEM part number and emission system setup before installation.

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM numbers 5WK96657A or A0091530728 with your original sensor and verify connector type, wiring length, and SCR system configuration.

Q2: Where is this NOx sensor installed?
A2: It is installed in the SCR exhaust aftertreatment system of Mercedes-Benz diesel vehicles such as GLK250 and Sprinter models, before or after the catalytic converter depending on setup.

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 all listed Mercedes-Benz 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 system reset or diagnostic adaptation after installation.