This Mercedes came into us recently with loss of power and a engine warning light on.
After carrying out our Dpf health check it was clear to see the Dpf was excessively blocked and measured just over 600mbar at idle!
This is approximately 600 times what we like to see, we cleaned the dpf and afterwards the pressure was back to normal at 5.6mbar.
The fault codes stored for this was p2463 and p2002 which are really common.