Common Peugeot AdBlue faults
On many BlueHDi models, the AdBlue pump, heater and level sender are built into a single module inside the tank. When one part of that assembly fails, the dashboard typically shows “AdBlue system fault” or “Emissions fault” with a countdown of several hundred miles.
- “AdBlue system fault: starting impossible in X miles”
- Tank module pump or heater failure
- Level sender reading incorrectly after a refill
- Crystallisation around the dosing injector
Models we regularly see
Partner, Rifter, Expert, Traveller, Boxer, 208, 308, 508, 2008, 3008 and 5008 with BlueHDi engines.
Shared platforms
Many Peugeot vans share engines and AdBlue systems with Citroën and some Vauxhall models, so the same diagnostic approach applies.