Rebooting, Maps and Firmware
Picked up a 2014 TDI SEL a month ago. Didn't know about the RNS 510 reset issue and had a few reboots on the test drive. Chalked it up to hot weather and sitting on the lot. After the purchase, I learned about the issue. It has been tolerable with an occasional reboot every couple of days.
In the mean time, I took the plunge two weeks to update the map. Update went as described everywhere and there were no other changes. That went well enough that I downloaded the new firmware for future use if needed - The unit is an "L" model so I burned V5382. This past Sunday (5/5/19) the system went into a continuous reboot loop - every 2 1/2 minutes, like clockwork. I poked and prodded for two days but no soap. Tried all of the tricks and techniques noted here and other major VW sites.
Having nothing to lose, I started the firmware update process last night. Took a couple of attempts to get the disc to start loading but once that happened, just like the map update, everything went like clockwork.
Too early to tell if the system is permanently fixed but all tests last night went perfectly, as did the commute to work today (hour and half commute each way - that's why this is my third TDI - two Bugs and now that Passat for something a bit more comfy as well as practical).
Presets stayed, phone pairing stayed and it appears that all other settings remained set. The only thing that seems to have been lost were the destinations in the Nav memory. The best thing besides the rebooting problem going away is that Bluetooth media works now - didn't work before but all other phone functions were fine.
Fingers crossed, firmware upgrade all the way!
Everything has been working great for a few days, now. I presumed that the firmware I downloaded had VIM in it so I tested it this morning for the commute. Nothing - video shuts down around 5 MPH, just like it's supposed to. With all the success above, figured I would update VIM. Burned a disc at lunch hour and loaded it up. It choked with a failure on the next to last step so I forced a restart with Eject-Star-Guide. Went like magic. Five minutes later I was buzzing down the highway with Blade Runner on for my test passenger. Steering wheel DVD controls work while in motion. DVD continues to play in the background while the reverse camera is engaged. Lovin' this car!