AdBlue Tank Peugeot 5008 II BlueHDi

Error Codes:
P20E8 - AdBlue pressure too low

The AdBlue tank with OE code 9807475680 è a complete module of the system SCR (Selective Catalytic Reduction) adopted on PSA vehicles with engines BlueHDi Euro 6. L’unità integrates container, electric urea pump, sensors, and electrical management of the module, ensuring storage, pressurization, and delivery of the fluid to the’SCR injector.

Technical characteristics

• Structure: tank made of plastic material (HDPE) with pump module + electronics integrated (unità "tank + pump + control module".)
• Equipment: urea pump, level sensor, temperature sensor fluid, filter integrated, heating/antifreeze of the extraction and supply line; pressure monitoring circuit.
• Interfaces: electrical connector 12 V, heated supply line towards the’SCR injector, quick-connect fittings.
• Capacityà typical: ≈15–17 liters depending on platform/year and configuration (with/without spare wheel).
• Location: rear underbody (longitudinal beams/spare wheel well), with impact/dirt shields.
• Supply: complete unit; some supplies include versions. without pump group (reuse from the old tank) — check the actual content of the kit based on the VIN/supplier.

DIPA può intervene to also revise this component as it isì important for the proper functioning of the engine.

Functionalityà

• Storage and pressurization of AdBlue fluid to supply the SCR circuit.
• Flow/pressure control and pump actuation management for stable dosing.
• Thermal conditioning (antifreeze/defrosting) to ensure delivery even at low temperatures.’
• OBD monitoring of level and temperature, with management of autonomy/refill alerts and fallback strategies.
• Integration with engine ECU and sensors NOx for the closed-loop dosing and the reduction of NOx in the SCR catalyst.

Applications models

Peugeot

• 5008

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

Typical defects

• Low urea circuit pressure due to pump failure, air intake, or clogged filter → AdBlue/warning lights, startup countdown.
• Level sensor failure → incorrectly indicated range, persistent warnings after refilling.
• Crystallization of the fluid in pipes/injector → restrictions and flow drop.
• Heating anomaly (resistances/heated lines) → low temperature supply block.
• Leaks/oozing from the module or from the fittings → odors, crystalline deposits, connector corrosion.
• Wiring/electronics defects of the module → errors “range/performance”, modesà degraded.

Error codes

• P20E8 – Reducer pressure too low (low pressure urea circuit).

Final conclusions

The AdBlue tank OE 9807475680 è a complete group for the systems SCR BlueHDi on recent PSA platforms. In diagnosis/replacement è recommended: check qualityà of the fluid and crystallizations, check seals and supplies.

DIPA offers a wide range of spare parts: from original ones to aftermarket parts selected from the best manufacturers on the market. Not only that: it also offers refurbished components with performance equal to new, allowing for savings on replacements and contributing to the protection of the’environment thanks to the’circular economy. If the spare part you need is not è available, don't worry: DIPA canò review “on demand” your part, restoring its full functionalityà and safety in a short time.