Hi All, the dreaded "particle trap bank one below efficiency threshold"

The word around the camp fire seems to be that this is common on Audi/Vw cars 2015 onwards, and the cause is in fact a blocked EGR cooler , NOT the DPF.... my car has only done 45000mls..... Is this mileage enough to bung up the EGR cooler already? Mega strip down needed to access the bloody thing, and £582 for the cooler from Audi. Can these cars really be So unfit for purpose?