My husband & I bought a new 2014 Navion IQ on 6/5/14 with 2234 miles on the odometer. We drove it exactly 75 miles from the dealer when the Check Engine Light (CEL) came on. Of course I called the dealer when we got home and was told I needed to go to the nearest MB/Sprinter service center for diagnosis. Had to drive 65 miles to the nearest authorized service center where they replaced the GLO PLUG MODULE due to poor LIN communication problems. As i was driving out of the service center, the CEL came on again!!! Service manager said they had to run the computer again & reset. This took a good hour and then I drove it home with no problems. A few days later, went camping, used electrical hookups with no problems. Went we started engine up to come back home CEL went on again. Took it back to MB service center & this time a CONTACT PIN needed to be replaced. It was at this time that I was told this NEW vehicle had a prior CEL issue when it was in transit to the dealer. The ENGINE HARNESS was replaced at that time. Concerned that this was not disclosed to me at the time of purchase I proceeded to call the dealer, who said it was never disclosed to them so how could they be responsible. IN the meanwhile, we went on another camping trip and of course, RV drove fine to our destination but again, after disconnecting hookups, CEL came on again and also the GLO PLUG light. Took it back to service center and they now are sending out for a specialist to diagnosis problem. GLO PLUG RELAY malfunction, part replaced. Upset with this being a LEMON, I called Itasca/Winnebago Industries. Was told not their problem, call Mercedes Benz - which I did and now after 5 visits to MB/Sprinter service center in less than 2 months, with less than 2000 miles that we logged on the odometer, Mercedes Benz is re-purchasing our motorhome. Within the next 10 days I will be meeting with a mediator representative to surrender the vehicle where at that time I will receive a check for the downpayment I put down, along with any payments I made to the bank. In addition, they are paying off my RV loan to B of A. To have our last hurrah in our Navion, my husband and I drove to a local campground and stayed for a few days. RV drove fine after last repair and after disconnecting hookups, no light - yeah!! BUT, it came on after we got finished using the dump station. In addition to the CEL, the center lock system is not working nor is 2 electrical sockets...I do not know what to think anymore.
I personally believe that the computer in my RV is malfunctioning and causing bad readouts - the motorhome drives fine....... would love some feedback!