2. Diagnosis & Intervention Protocol à Nice
A catalyst failure often generates a P0420 code, while a clogged DPF generates excessive back pressure codes (P2002) and direct 'DPF Clogging Risk' alerts to the dashboard.
3. Management and Technical Solutions
The DPF requires frequent cleaning (forced regenerations, machine cleaning), while a catalyst almost never clogs on a healthy engine, unless it is poisoned by oil or coolant.
4. Prevention and Maintenance in Nice
The use of a 'Low SAPS' (low ash) engine oil is crucial to prolong the life of the DPF, while perfect ignition condition preserves the catalyst.