FITMENT:
Compatible with Mercedes-Benz heavy-duty trucks and special vehicles equipped with Euro 6 SCR systems, including:

• Actros MP4 / MP5
• Arocs (construction trucks)
• Antos (distribution trucks)
• Atego Euro 6
• Econic (refuse/waste trucks)
• Unimog Euro 6 applications

OEM / Cross reference numbers:

• A0101539328 / A 010 153 93 28
• 0101539328
• 5WK96642B / 5WK96642A
• A0081539828 / 0081539828 (related variants)

This NOx sensor is used in the SCR aftertreatment system (AdBlue/DEF) to measure nitrogen oxide levels in exhaust gas and control emissions compliance.

FUNCTION:

• Measures NOx concentration in diesel exhaust
• Sends real-time data to ECU via CAN (J1939 protocol)
• Controls SCR/AdBlue dosing strategy
• Monitors catalyst efficiency (Euro 6 compliance)
• Prevents engine derate and SCR system faults

INSTALLATION POSITION:

• SCR system inlet or outlet sensor (depends on configuration)
• Mounted before or after SCR catalyst on exhaust line
• Used in both heavy-duty trucks and special vehicles

IMPORTANT NOTE:
Mercedes heavy-duty NOx sensors like A0101539328 belong to a multi-variant SCR sensor platform, meaning:

• Same physical sensor used across multiple Mercedes truck models
• Inlet and outlet versions are NOT interchangeable
• Cable length and calibration differ depending on application
• ECU defines correct function (position-specific coding required)

Incorrect installation can cause: SCR faults, AdBlue errors, or engine derate.

FAQ:

Q1: Is this inlet or outlet sensor?
A1: It can be used as inlet or outlet depending on Actros/Arocs SCR system setup.

Q2: What vehicles does it fit?
A2: Actros, Arocs, Antos, Atego, Econic, and Unimog Euro 6 trucks.

Q3: What are failure symptoms?
A3: SCR warning light, NOx sensor fault codes, AdBlue system errors, engine limp mode.

Q4: Are A0101539328 and 5WK96642B the same?
A4: Yes, 5WK96642B is the Continental OEM reference for Mercedes A0101539328.

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