Intake system for a Diesel engine of a motor vehicle

The system includes a inlet for fresh air (4), and an outlet for exhaust gases (5) for recycling in the engine (1), delivered by a corresponding bleed circuit (7). There are units (8) for opening and closing itself, on the exhaust line (3) of the engine, having a particle filter (6). The exhaust gas bleed circuit is connected to the line (3) downstream of the particle filter.