AdBlue Pump Module Man TGX

Typical faults:
AdBlue warning light on the instrument cluster
Malfunction of the integrated pressure sensor
Motor malfunction

PFAPS034N

The AdBlue pump with OE code 81154036150 is the complete AdBlue dosing module used in the Euro 6 SCR systems of MAN TGX series (and TGL, TGM, TGS) trucks.
It is a compact unit that integrates the electric pump, valves, sensors, and heating elements necessary to draw the urea solution from the tank, pressurize it, and send it to the AdBlue injector mounted on the exhaust system.

This module is part of the Bosch Denoxtronic 2.2 system family adapted by MAN, and is supplied as an original component for medium and heavy Euro 6 vehicles.

Technical characteristics

• Technical supplier: Bosch Denoxtronic 2.2 platform for industrial vehicles
• Power supply voltage: 24 V (truck electrical system)
• Main function: pumping, filtering, pressurizing, and controlled dosing of the AdBlue solution
• Internal architecture: integrated electric pump, suction and delivery valves, dosing chamber, internal filter, pressure sensor, and fluid temperature sensor
• Heating system: heating elements and pipes integrated into the module to prevent AdBlue freezing and ensure circuit defrosting
• Hydraulic connections: quick couplings for AdBlue inlet from the tank and outlet to the SCR injector, plus any return/recirculation lines
• Vehicle positioning: mounted on the frame near the AdBlue tank, protected but accessible for maintenance

DIPA can intervene to overhaul these components thanks to its experience and expertise.

Functionality

• Suction of AdBlue from the tank and filtering of the fluid before sending it to the dosing circuit
• Generation and maintenance of the required pressure in the AdBlue circuit towards the SCR injector
• Management of fluid recirculation to the tank to stabilize pressure and temperature and limit crystal formation during non-injection periods
• Heating of the AdBlue circuit through integrated elements to prevent liquid freezing and allow operation even at low temperatures
• Circuit purging function, used to empty or relieve the system during engine shutdown or under certain operating conditions

Model applications

• MAN TGX Euro 6 (and TGL, TGM, TGS)

Typical defects

• AdBlue warning light on the instrumentation
• Failure of the integrated pressure sensor
• Motor failure

Final conclusions

The AdBlue pump OE 81154036150 is the central component of the AdBlue dosing system on MAN Euro 6 trucks of the TGX series (and TGL, TGM, TGS).
In a single body, it combines pumping, dosing, sensors, and heating, allowing the proper functioning of the SCR system and compliance with NOx emission limits.

DIPA has a wide range of spare parts dedicated to the Truck world, construction vehicles, and industrial equipment. Not only that: it has refurbished components with performance equal to new, which allows for savings in replacement while contributing to environmental protection through the circular economy. If the spare part you need is not available, don’t worry: DIPA can refurbish your part “on demand,” restoring its full functionality and safety in a short time.