Repaired AdBlue Tank Psa 5008 C4

Error Codes:
P20E8 - AdBlue pressure too low
P20EE:92 - System nox exclusion pollution (effectiveness) - Performance or operation non-compliant

The original PSA AdBlue tank with OE code 9813819480designed for the SCR system of PSA models. The group integrates a plastic tank body, electric pump module, level and temperature sensors, anti-freeze heating elements, and quick connectors to the SCR dosing line. It manages the storage, conditioning, and delivery of the urea solution to the DeNOx catalyst.
Technical specifications

• HDPE tank resistant to urea, salinityà and thermal shocks, with dedicated mounting points for the frame.
• Integrated pump module 12 V with pressure sensor and check valve.
• Internal level and temperature sensors for managing dosing and cold strategies.
• Heating elements of the tank/line to prevent freezing and crystallization.
• Integrated suction filter and purge/return circuit to limit deposits.
• Waterproof wiring with multipole connector for power supplies and signals.
• Quick connectors with specific O-rings for AdBlue and sealed cable entry.

DIPA può intervene to review this component as wellì important for the proper functioning of the engine.

Functionalityà

• Storage and thermal conditioning of the urea solution 32,5%.
• Pressurization and feeding of the SCR doser according to ECU DeNOx/engine commands.
• Automatic purging of the line when the engine is off to reduce crystal formation.
• Continuous monitoring of level and temperature for cold start strategies and catalyst efficiency.
• Support for diagnostic procedures after refilling/replacement (filling registration, actuator tests, and purging).

Model applications

Citroën

• C4 Picasso
• C4 SpaceTourer

Peugeot

• 5008

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

Typical defects

• Reduced urea circuit pressure due to pump wear, clogged filter or micro-leaks → SCR warning lights and performance limitations.
• Failure of tank/line heaters → freezing of the fluid and activation delays at low temperatures.
• Abnormal level/temperature sensors → incorrect indications “UREA” degraded strategies.
• Crystallization in the tank/lines or clogged SCR injector → insufficient dosing and catalyst efficiency errors.
• Oxidation/infiltrations on cable glands or connectors → electrical interruptions/intermittencies.
• Mechanical damage to the shell (impacts, abrasions) → leakages and ammonia smell.

Any associated DTC codes

• P20E8 - Reducing pressure/insufficient urea
• P20EE:92 - Exhaust system pollution control nox exclusion (effectiveness) - Performance or operation non-compliant

Final conclusions

The AdBlue tank PSA 9813819480 è a key component of the SCR system in PSA models. In the presence of warning lights or codes related to pressure, heating, or sensors, the’correct intervention involves targeted diagnosis, purging/cleaning of the line, checking the’SCR injector and, if necessary, replacing the tank.

DIPA offers a wide range of spare parts: from original ones to aftermarket selected from the best manufacturers on the market. Not only that: it offers 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 is not è available, don't worry: DIPA canò revise “on demand” your part, restoring its full functionalityà and safety in a short time.