Urea Tank Revision Ducato 2.3 Mjet

The AdBlue tank with OE code 1399208080 è a component of the selective catalytic reduction (SCR) system installed on diesel vehicles of the FCA group, particularly on Fiat Ducato with engines 2.2 and 2.3 Multijet compliant with Euro 6 regulations. Its task è is to store and supply the technical urea solution (AdBlue) necessary for exhaust gas treatment. The tank includes an electric pump, level and temperature sensors, and in some cases also a dedicated management control unit.

This module è is essential for the operation of the SCR system, which injects AdBlue into the exhaust duct to convert nitrogen oxides (NOₓ) into nitrogen and water vapor, helping to meet emission limits.

Technical characteristics

The tank 1399208080 è made of high-strength plastic and è configured for the’installation under the vehicle floor. Its features include:

• Capacityà approximately 4–5 liters of AdBlue solution
• Integration of an electric pump for transferring the liquid to the SCR dosing module
• Level sensor with analog or digital signal to the engine control unit
• Internal temperature sensor for managing the’antifreeze and the’system efficiency
• Possible integration of the control unit (AdBlue ECU), depending on the version

The component è supplied complete with hydraulic connections and electrical connections for the original wiring. È installed at the rear right of the frame, nearà the fuel tank or the dosing module.

DIPA has a range of original and quality aftermarket spare partsà as well as refurbished components with functionalityà equal to new.

Functionalityà

The AdBlue tank has the function of containing and managing the’delivery of the reducing fluid used by the SCR system for exhaust gas purification. The internal pump pushes the fluid towards the’SCR injector located in the exhaust, under the control of the control unit. The system operates continuously during engine operation, and the’absence or malfunction of the AdBlue module leads to operational limitations up to the blocking of the’starting.

The correct pressure of the circuit, the quantityà of residual fluid, and the temperature of the fluid are constantly monitored. In case of anomalies, the control unit generates errors and alerts the driver via the instrument panel.

Brand and model on which the part è is mounted

Fiat

• Ducato (Bus, Van, Chassis cab)

DIPA recommends to always check the compatibilityà of the spare part before’purchase.

Defects and causes

The main faults detected on AdBlue OE 1399208080 tanks include:

• Internal pump failurewith insufficient or absent pressure in the circuit
• Malfunction of the level sensorswhich provide incorrect or absent readings
• Structural damage to the tank bodydue to impacts or exposure to aggressive environmental conditions
• Failure of the internal control unitwhere present, with loss of communication
• Crystallization of the’ureain case of infrequent use or long periods of inactivityàwhich canò block the system

These defects result in warning lights on the dashboard, AdBlue alert messages, loss of power or modeà protection with countdown for the engine lockout.’starting.

Final conclusions

The AdBlue FCA tank with OE code 1399208080 è is an essential component for the proper functioning of the SCR system in Fiat Ducato Euro 6. Integration of pump, sensors, and, in some cases, control unit makes it a complex and high-cost module. È subject to wear and failures due to contamination or environmental stress.

DIPA has a wide range of spare parts: from original ones to aftermarket selected from the best manufacturers on the market. Not only that: it has refurbished components with performance equal to new, which allows for savings in replacement and contributes to the protection of the’environment thanks to the’circular economy. If the spare part that suits you does not è available, no worries: DIPA può to review “on demand” returning your part to full functionalityà and safety in a short time.