I think what you have downloaded is the guide information for comand route yet you have sound 20, I think you really want to purchase a refreshed sd card with the new guides for sound 20. I think the guides are garmin however I stand to be remedied.

 

Thank you for your reply. The W222 in fact has NTG 5 (usually either 5.2 or 5.5; I believe I have 5.2 but could be wrong - see photo). I do not have Audio 20, nor do I have an sd card input; only two USB ports in the center storage compartment. My nav map data is not sd card based, nor do the updates come that way.

My dealership tried to install the update that failed; as I understand, they tried to download it using their own Mercedes equipment, and not a USB thumb drive.

 

UPDATE: The whole story (NEWER UPDATE FOLLOWS AT POST 7)

I took my 2015 W222 (in-service date Sept 2014, so fairly early production) to the dealership for 70K service, brake replacement, and a nav map update to North America v. 14 (it had v.13 installed). The car would not accept the v.14 update, and I was told my "Multimedia module" was bad. A new one was ordered, and I picked the car up while waiting for the part. At this time, immediately after the failed update, I still had access to my v.13 nav maps, but all of my contact information and address information was erased - though I could manually enter contacts and destinations, and save them.

My car has two USB inputs in the center console, which I use for my music source (my iPod provides better sound quality via USB than the phone connected via Bluetooth, and I have search capability for music on COMAND with the iPod, which I do not have with the BT connection). However, the space above the USB inputs which is large enough for an SD card is covered up and no SD card input is available in my car.

When the new multimedia module arrived, I went back to the dealer to replace it and load the v.14 maps. The dealership told me it would take an entire day, minimum, to reprogram the multimedia unit, and then 4 more hours to do the nav map update. After the new unit was installed and more than a day of trying, the dealership was unable to complete programming the multimedia module to the car, let alone load the maps. NOW they tell me they had to order a new SD card for the module. This prompts a raft of questions:

1. Does the multimedia module for COMAND NTG 5.2 or 5.5 (whichever I have) use an SD card inserted directly into the module for its programming (distinct from the nav map programming)? I really don't know if such a card exists, or where it would be plugged in; there is no SD card slot in the center console.

2. Or is it probable that the dealer transferred a bad SD card for my allegedly bad multimedia module into the new one - and the source of the problem all along was the SD card, not the module?

3. Yesterday, after the dealership had the car for 8 days to deal with the "multimedia unit" and map update, they returned the car, sayin "We have been informed by Mercedes that they are working on the nav software but cannot get it to load on their end." When I got it back it was apparent they had tried to do some work - my phone was no longer paired ( I was able to re-pair it), and my contacts and address book gone (I was ablr to re-import my contacs). The nav map version is still North America v.13 (through 2020).

I know I am not getting straight information from my service writer. Among other things, he tells me the nav update takes 4 hours, when the normal time would be 90 minutes to 2 hours using MB diagnostics equipment. He has also told me it would take "all day" to do just the nav map update - not the multimedia unit programming. My car has now been in the shop for over a week just for the nav map update and the related complications, and though they provided a loaner, I would like to get my car back, functioning. The reason I traded my 2013 W221 for this car is because MB quit updating W221 maps in 2014; I wanted to be able to update.

However, I don't want to pay nearly $900 for the multimedia module, nearly $400 for the nav map update, and some cost (not yet quoted) for the SD card we're still waiting for, if the only thing wrong in the first place was the SD card (assuming there really is one at issue).

I'd really appreciate some help here.

 

Last year, the dealer updated my maps to v16 (do they not have anything beyond v15 for you?). My service advisor actually did the update himself, with the car outside of the actual shop space, it cost me $99 with a postcard received in the mail from MB, and it definitely didn't take anywhere near "all day".

 

I agree, Mr. Toad. When I bought my car last year, the original owner had never updated the maps; at purchase, Mercedes offered the first three updates free, but the car was beyond the time the offer was valid. Nonetheless, my service adviser at the time, who was a great guy, brought the maps to v.13, which was the latest then available and one beyond the three updates, and did it free. He also may have done the installations himself; I don't know if he had to install them serially, or could just skip direct to v.13 - I suspect there was more than one done. However, he asked for only a one day delay to pick the car up after purchase, which is when he did the update(s).

The 3rd party map updates one can buy either through downloads (for $99) or on a USB drive (for around $130) say they take 90 minutes; and they show v.14 as the latest North American map for my car. The dealer did not supply any further info about a later version, but I asked for the latest available.

Most puzzling.

 

LATEST:

I spoke with the shop foreman who had worked on my car. The information passed to me about an SD card was erroneous; the update that failed was on a USB thumb drive. I am correct that my particular COMAND has no SD card. My car is not the only one with NTG 5.2 that will not upload the latest North American nav maps (the foreman said he thought that would be 2022 v.19, but was not certain of the version number; 3rd party maps being offered are v.14 or v.15).

In any case, MBUSA is working on the software load problem, and the answer could take a week to several months. I'll update when the final answer is at hand.

 

the foreman said he thought that would be 2022 v.19, but was not certain of the version number

As mine was updated to v16 by the dealer last year, it's hard to imagine that they've released three new versions in one year.

 

You are probably right. The foreman also said Mercedes uses nav maps from several different sources, i.e., different sources for different COMANDs. Each could, of course, have a different version number, and he was working from memory.

 

UPDATE:
First, I can confirm that my HU is NTG 5.2; 5.1 and 5.5 both have Apple Carplay capability, and 5.2 does not. Mine lacks Carplay.

Second, Mercedes was finally able to update my nav maps, to North America Version 15.0 (2021-2022). Mine was not the only NTG 5.2 that wouldn't update, so they have apparently fixed the software problem.