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

• E250 Bluetec
• Sprinter 2500 / 3500 (2.1L & 3.0L diesel engines)
• GL / ML / R-Class Bluetec models (select configurations)

OEM reference number: A0065427218.
Common cross-references include 5WK96677 / 5WK96682D / A0009053503 depending on variant and supplier.

Used in diesel exhaust aftertreatment system for NOx monitoring (DEF/AdBlue SCR system).
Installed in exhaust system (inlet or outlet position depending on SCR configuration).
Fitment must be confirmed by OEM number and vehicle emission system layout before installation.

FUNCTION:

• Measures nitrogen oxide (NOx) levels in exhaust gases
• Sends real-time data to ECU for AdBlue dosing control
• Ensures SCR catalyst efficiency and emission compliance
• Helps prevent engine derate and emission faults

INSTALLATION POSITION:

• SCR exhaust system (pre or post catalyst depending on configuration)
• Typically mounted on exhaust piping near SCR module

FAQ:

Q1: How do I confirm compatibility?
A1: Match OEM number A0065427218 with your original sensor and verify connector type (often 5-pin), harness length, and SCR system position.

Q2: Is this inlet or outlet sensor?
A2: It can be used as inlet or outlet depending on Mercedes Bluetec SCR layout, so OEM matching is critical.

Q3: What vehicles commonly use it?
A3: Mercedes E250 Bluetec, Sprinter 2500/3500 (2010–2018 range), and some GL/ML Bluetec models.

Q4: What are failure symptoms?
A4: Check engine light, SCR/AdBlue warnings, limp mode, incorrect NOx readings, or DEF dosing errors.

Q5: Does replacement require programming?
A5: Some Sprinter and Bluetec models require ECU reset or SCR adaptation after installation.