Mercedes Sprinter DEF / AdBlue Tank Assembly – Genuine OEM | VS30 2.0L OM654 Diesel | #9104702401 (2023–2025)

A cracked, contaminated, or failed AdBlue tank assembly on a VS30 Sprinter disables the SCR emissions system at its source — leading to DEF system faults, limp mode, and a van that cannot legally operate in emissions-regulated environments until the tank is replaced and the system recalibrated. This is the Genuine Mercedes-Benz OEM DEF tank assembly for VS30 Sprinters equipped with the 2.0L OM654 diesel engine, a complete replacement that restores proper AdBlue storage, heating, level sensing, and supply to the SCR system.

What This Part Does

The DEF tank assembly is the complete AdBlue reservoir system that stores diesel exhaust fluid onboard the van and supplies it to the DEF pump for delivery to the SCR catalyst. The assembly integrates the tank body, level sensor, heating element, and supply and return connections into a single unit. The heating element is critical for cold-climate operation — AdBlue freezes at approximately 12°F (-11°C), and the heating circuit must thaw the fluid before SCR dosing can begin after a cold soak. The level sensor provides continuous DEF quantity data to the instrument cluster and ECU, triggering the low DEF warning at the appropriate threshold. When the tank cracks, its heating element fails, or its level sensor develops a fault, the entire SCR dosing chain is disrupted — generating fault codes, disabling dosing, and eventually triggering the power restriction cycle that escalates with each subsequent cold start.

Common Symptoms of a Failing DEF Tank Assembly

• AdBlue level warning that does not clear after refilling, indicating a failed level sensor
• DEF heater fault codes stored in the SCR control module — common in cold climates
• Physical cracking or leaking of the tank body, resulting in AdBlue loss and crystallized residue under the van
• SCR dosing faults that return after filling with fresh AdBlue and clearing codes
• Limp mode or power restriction escalating through the Mercedes DEF warning sequence

When to Replace

Replace when the tank is confirmed cracked or leaking, when the integrated level sensor has failed and generates persistent fault codes, or when the heating element is confirmed inoperative and causing cold-start SCR faults. After replacement, the SCR system must be recalibrated and the fault memory cleared with XENTRY to restore normal operation. Always fill with certified ISO 22241 AdBlue fluid after installation.

VS30 OM654 Specific — VIN Verification Required

This DEF tank assembly is for VS30 Sprinters equipped with the 2.0L OM654 diesel engine. DEF tank configurations vary by model year, body style, and chassis length — this part is VIN specific. Always verify your engine code, model year, and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2023–2025 Mercedes-Benz Sprinter 2500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 3500 – 2.0L OM654 Diesel (VS30)
• 2023–2025 Mercedes-Benz Sprinter 3500XD – 2.0L OM654 Diesel (VS30)

✔ This part is VIN specific — always verify before ordering
✔ SCR system recalibration required after replacement
✔ Fill with certified ISO 22241 AdBlue after installation

Part Numbers

• Mercedes OEM: 9104702401 / A9104702401 / 910-470-24-01
• Cross-reference: 9104700000
• Manufacturer: Genuine Mercedes-Benz
• SKU: 9104702401OE