So lets do a follow up here. The first episode was in Nov on a trip to south carolina. It seemed to right itself if there was a power demand somewhere in the chassis, and I could start. First, the drivers door powered up the dash and ignition. The next time that didn't work, but when I switched on the dome light, the dash powered up. The next time that didn't work, but opening the hood worked. I did get a CEL a couple of times, but they went off as soon as I restarted. I went to Critz MB in savanah, but with no CEL on at the time, they couldn't find anything. I got home to Ottawa, and this never happened again, but I took it to my dealer, Star Motors (super dealership), and nothing showed on the scans...
Now we set off in early Jan to head south west. The first night we stayed at my uncle's, so no one was in the rig. The next night in Memphis, cold temp, running the furnace. In the morning NO START! The only way I could get it to go was powering up the genny. By this point I've also wired the battery isolator relay in the battery control center in the thought that this situation might occur again. So the genny in conjunction with the
bridge between the chassis and coach started the rig.
I should also mention that at no point in checking chassis battery voltage was there ever a drop below 12.5v. BUT, when I took off the battery cover in the footwell, the positive cable that Forest River had installed to power some of the accessories was arcing and caused burning of the red terminal cover! The nut holding the cable in was loose! I cleaned it and tightened it up. I had hoped this would resolve some of the issue...
Now I could have stayed in Memphis an extra day, but I was thinking "I got this" so we'll continue west. A the first fill up, she won't start again. I'm pissed now! Jump it with the gennie, and head for albequrque NM, 1000 miles away! Arriving at 7 in the morning on a Monday , they took me right in. The list of trouble codes ran over 7 Pages! Holy cow... most were voltage related, but not all. I also had a particulate filter full of soot.
All the tech did was to clear the codes, check the charging system and all was declared Normal. He did a regeneration burn on the particulate filter and it cleaned up. He did check for voltage draw down overnight while we stayed in a hotel, but there were no more faults! So now we're in telluride to ski for a week, and then on to Quartzsite.
We'll see how it goes. But the tech felt the arcing from the loose FR accessory cable could have caused voltage fluctuations. He said the electrical system is extremely sensitive. He also said he's the ONLY sprinter tech in New Mexico. Man did I get lucky. How lucky, we'll see. This is my 7th mercedes dealer in two years. They have all been fantastic to deal with, but this is getting old! Pray for me brothers and sisters!
Ottawa Ontario Canada
2015 Solera 24R