2. Diagnosis & Intervention Protocol à Nice
The P20E8 fault (urea liquid pressure too low) or P20EE (SCR efficiency below threshold) indicates a failure of the pump, often integrated into the tank (exorbitant replacement cost).
3. Management and Technical Solutions
As an alternative to replacing the tank (more than 1000 euros), a software solution (AdBlue OFF / SCR OFF) allows the system to be permanently deactivated in the computer without affecting engine power.
4. Prevention and Maintenance in Nice
To prevent AdBlue from crystallizing, use a preventative anti-crystallization additive each time the urea tank is filled.