Alex Wright
Andrew I presume you mean ash and not soot.
The life span of these filters is supposedly 70,000 miles.
As Andrew has said the fault code has been logged because it has calculated that 57g of ash now resides in the filter
Message Thread Peugeot 207 1.6 9HZ 2007 - Code P0420 - Ongoing # - George Ambelas May 23, 2015, 9:17 pm
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