Looking at turning off the DEF system because of repeated issues recently. Error message said "DEF pressure too low at system start".
Day 1. DEF filter has been replaced, computer reprogrammed
Day 2. Computer replaced and programmed.
Day 3. (Will be tomorrow morning) I can only assume they are replacing the DEF pump next.
So I've been told there is a DEF bypass module for these things. Is it worthwhile?