Hello Bluetec owners:
Not long ago I posted a question in "How to know if my Bluetec need a particulate filter clean up".
As my 2008 MB E320 Bluetec does not use the DEF fluid I received many replies that this car is designed to clean the filter automatically.
Also according to the MB owner manual, when the sensors detect a blockage in the exhaust system, the engine will burn an extra fuel, like burning rich, and will clean the filter. Car has now: 117500 K miles
Today a check engine light came on and I had it scanned and got a code P242F which means: "Diesel Particulate Filter Restriction - Ash Accumulation"
If the car design is to clean filter automatically, why then I am getting this code?
I also got the code: P0402 - "Exhaust Gas Recirculation Flow Excessive Detected."
Is there anything associated between the two codes?
The car is not going faster than 65 MPH even pressing the accelerator to the bottom.
Is there any DIY for these issues?
Thanks

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Nyck - TX - USA