Ranger Pride: You might want to follow-up your conversation with your service department, based on the below information.
I just received confirmation from Autobahn VW in Ft. Worth, that the 23N7 is NOT turbo related. It is exactly what is quoted in the text below, from a post at Vortex re: 23N7 software update. I've asked the Vortex poster to divulge HIS source of this information, so that we have additional confirmation. I'm awaiting a call from Stohlman VW in No. VA for their input, as well.
This [23N7] update has been proactively released to prevent the battery from becoming discharged due to a
unique set of circumstances during the CAN bus diagnostic phase, leading to excessive parasitic draw
and a discharged battery while the vehicle is parked.
The battery can become discharged when the ECM “wakes-up” the CAN bus to do a diagnostic (~9
hours after vehicle shut-off). During that diagnostic time-window, if the door is opened or the ignition
is switched ON, the ECM goes into a mode that can continuously wake-up the CAN bus, leading to
excessive parasitic draw and a discharged battery while the vehicle is parked.
I'm not sure this is actually a problem. The shift points are increased a bit when the engine is warming up in cold weather. But you said the dealer fixed it with a flash, so I dunno.I thought the car seemed to rev higher in colder weather but no problems changing gears. The day in question was the coldest day of the year thus far. Admit I didn't look at the tach so I can't be any more definitive about the rpm's. When the car warmed up a little more the problem went away. As I've had turbo problems with a previous Passat TDI, I immediately called the dealer and, after the software upgrade, the car is changing gears much better. Of note, the temperature dipped to -30C last Friday. I let the car warm up about two minutes or so before heading out. The DSG transmission worked fine despite the bitter cold temperatures.
If true, I wonder why my dealer installed the 23N5 update to my 2013 on February 10th. Guess I need to go back and have the new and improved 23N7 installed nowThey are merely sequential updates. There was most likely a 23N6 that had bugs or issues and never made it out to dealers.
Try and work on your reading comprehension.tyrntlzrdking:
The 23N7 is an update for the electrical system and has NOTHING IN COMMON WITH THE 23N5 update.
The 23N7 is for 2015 NMS Passats, not earlier model years.
They'll always be sequential. If VW happens to release a new version of the software for the '12-'14 models, it will follow whichever proceeds it. For instance, the next one will be '23N8' no matter what specific year or year model vehicle it's designated for. And so on, the next one to come about for '12-'14 could be '23N15'. Blah, blah.
That's a reiteration of what Loki just said. Lol.