AdBlue Tank Citroen Peugeot BlueHDi

Error Codes:
P20E8 - AdBlue pressure too low

Original PSA AdBlue tank with OE code 9822257280, used on vehicles of the “K0” platform with BlueHDi engines and SCR system. The assembly integrates a plastic tank body, an electric pump module, level and temperature sensors, anti-freeze heating components, and quick-connect fittings to the SCR dosing line. It manages storage, conditioning, and delivery of the urea solution to the catalyst for NOx reduction.
Technical features

• HDPE tank resistant to urea, salinity, and thermal shocks, with dedicated mounting points to the chassis.
• Integrated 12 V pump module with pressure sensor and check valve.
• Internal level and temperature sensors for dosing management and cold strategies.
• Heating elements for the tank and/or line to prevent freezing and crystallization.
• Integrated pickup filter and purge/return circuit to limit deposits.
• Watertight wiring with multi-pin connector for power and signals.
• Quick fittings with specific O-rings for AdBlue and sealed cable pass-throughs.

DIPA can intervene to overhaul this crucial component for the proper functioning of the engine.

Functions

• Storage and thermal conditioning of 32.5% urea solution.
• Pressurization and supply of the SCR doser according to ECU DeNOx/engine commands.
• Automatic line purge with engine 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 (fill registration, actuator testing, and purging).

Model applications

Citroën

• Jumpy (Bus, Van, Flatbed)
• Spacetourer

Peugeot

• Expert (Bus, Van, Flatbed)
• Traveller

DIPA recommends always verify the compatibility of the spare part before purchase.

Common faults

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

Error codes

• P20E8 – Insufficient reducing/urea pressure.

Final conclusions

The PSA AdBlue 9822257280 tank is a key component of the SCR system in K0 vehicles (Jumpy/Expert/ProAce/derivatives). In case of warning lights or codes related to pressure, heating, or sensors, the correct intervention involves targeted diagnosis, line purging/cleaning, SCR injector check, and if necessary, group replacement.

DIPA has a wide range of spare parts: from original to aftermarket components selected from the best manufacturers on the market. Not only that: it offers reconditioned components with performance equal to new, providing savings on replacements and contributing to environmental protection through circular economy. If the spare part you need is not available, don’t worry: DIPA can recondition your part “on demand,” restoring full functionality and safety in a short time.