We have the same issue with our 2014 Itasca Navion, both times they changed the fuel filter after trying to blame us on bad fuel, which they could not prove. Both times it was a very dangerous situation when you just loss power.
We have been in contact with both Winnebago which were no help and Mercedes which did pay for filters but said they never heard of this problem and will investigate this issue, service manager has a theory it is the bio fuel. We are waiting to heard back from mercedes, feel free to call if you want more info 716 628 6270
If they don't fix this issue someone is going to be killed.
Product or Service Mentioned: 2016 Winnebago Industries Itasca Navion 24j Rv.
Reason of review: Bad quality.