3008 Exhaust System Malfunction

Hello, I went from Istanbul to Izmir with my 2010 Model Peugeot 3008 diesel automatic vehicle. While cruising after 400 km, "Parking brake malfunction" "ESP malfunction" read "Exhaust Emission System Malfunction" and the vehicle fell off traction. I pulled over and kept the vehicle at idle and then turned it off completely. When I turned it on later, it just gave "Exhaust Emission Failure". That way, I had to go to the industry and delete the error codes. If it fails again, the EGR should change, he said. It gave "Exhaust Emission failure" again after 200 km. I had been on the ramp for 10-15 minutes before I made this error, I thought the car was tired. Then I set off. The malfunction light was on, but there was no problem with its traction performance. After a while, while I was cruising, the errors I mentioned above gave at the same time, I pulled over and turned off the vehicle, and when I started it again, only the exhaust error remained. are there?

Probably the dpf or the master said, the egr started to fill up, my teacher, we need to use our diesel vehicles at a speed. What error codes were the vehicle giving

I fixed it to 130 along the way and went. I did not get the error codes, but it was an egr error that wrote. Before here I was in the exhaust, he said that when the dpf is full in these vehicles, it gives the error. He gave a price of 400-500 TL.

If he gave the egr error, the room is full, teacher. I would say have both egr and dpf filter cleaning. Use low gear, high speed, such as 3500-4000 for 10-15 minutes in between, so you will prevent dpf clogging.

Thank you for the answer. Is it also because of this failure that it gives other errors?