2020 S-Class voice control disaster
Having some basic understanding of how these things work, as I understand it that while Mercedes/Daimler designs and builds the cars, the "Connected Car" component is left to MBUSA or the destination country to implement. Mercedes used to use a system called TeleAid, which around 2010 transitioned into a "smarter" but painfully slow and unreliable system with expanded capability. In the last couple of years and going forward they are transitioning to MBUX, which is finally designed well and works. The late model COMAND systems in the W222 and other pre-MBUX cars have internet access and internet connected features, which in cars from before 2016/2017 used Verizon 3G, and from 2016/2017-MBUX used Verizon LTE and were a smidge better than the practically unusable "connected car" features in the 2010-2016 COMAND systems.
The problem I believe that makes the W222 voice control so darn slow, is that when you tell it to navigate somewhere, it is also using the internet to do a search on what you said. So for instance if you say "Navigate to the Main Street Mall" it will use the internet to find the address for that. The problem is that the pre-MBUX internet hookup is SO SLOW and under equipped, that it bottlenecks this entire process, and bogs down the whole voice control system. I feel this way because I also have driven a 2018 GLC, which uses the same COMAND system but without the fancy S-Class internet features and extras, and thus when I tell it to navigate to "123 Main Street" it just does basic parsing to dictate my voice message into a text address, which it then inputs into the GPS. It does not have an internet search feature built into the voice control system, and thus it is much faster.
The W222 S-Class meanwhile, whether you read it an address (Navigate to 123 Main Street), or tell it a destination (Navigate to John's Restaurant in Palm Beach), it's still doing an internet lookup on what you say as part of its process, and due to the fact that the pre-MBUX internet system is so slow and underpowered, it bottlenecks the voice control system.
If there was a way to disable the Internet-related feature of this, and just be able to say (Navigate to 123 Main Street), it would work MUCH faster. I can't seem to figure out if it's even possible to do that. It seems like the only option is to trade for the 2021 W223 MBUX S-Class which, I assume like the rest of the MBUX cars, fixes this poorly performing system.
Or maybe I'm wrong about how it works/where the issue is, and it's just very slow and inaccurate.
I have tried calling the local dealer, but honestly there isn't much they can do to fix this since it's how it was designed, and I feel like many of them don't understand it. MB corporate and MB USA know the system sucks, and you'd assume they'd just play dumb about it, since it really cannot be fixed as far as I know.
Does anyone else have any thoughts/experiences with this thing? I can't (I guess I can) believe that such a top of the line, 2020 vehicle has such problems. Has anyone been able to fix it?
Thanks.
Last edited by Senatov; Jun 15, 2020 at 02:50 PM.




I use a combination of Apple CarPlay and the internal navigation system. If my phone is connected then I can just use Siri and say something like "Take me to address/name using Google Maps" and it starts navigation using Google Maps. But recently I've been using COMAND quit a bit with voice command and it worked actually flawless the past two to three weekends I used it to navigate to specific destinations. It found the destination online on the first attempt and started the navigation. It also was quite fast. Is it possible that your car's Internet connection is slow where you are?
Alternatively, I find my destination on my phone and then use the Mercedes Me Connect app to send it to the nav. This is very easy on the iPhone at least as one can share destinations directly out of apps such as Google Maps. If already in the car and the phone connected to Bluetooth, the destination is actually sent to the COMAND system over Bluetooth and it pops up on the car's screens within a few seconds. If done from outside the car, it goes through the cloud and then pops up within a few seconds after starting the engine and the COMAND system booting up.
I'm not aware of being able to turn off the online search, but I believe there are more specific navigation commands such as "Navigate to contact <name>", and "Navigate to address <address>" might work. This might limit the search to a specific source I believe. There's actually a somewhat cool one "Navigate to what3words <three words>". I'm not sure if you are familiar with the service, but you can refer to any 3 meter square in the world using a unique 3 word address. For example "Navigate to what3words trying vibes ruled" takes you to the Empire State Building.
https://what3words.com/
Overall, I've gotta say it works quit well for me. If the online service is down, then the experience is hampered, but as I said, I was actually pleasantly surprised how well it worked the last few weeks, even finding places with foreign sounding names. I actually like that all searches are done at once. I've previously owned Audis and there you had to use a specific command to search online, which is pretty much what I always ended up doing, because its own database was so woefully out of date that it wasn't finding anything useful. Audi uses Google Local Voice Search for their service. The COMAND system uses HERE Local Voice Search. It's also possible that HERE doesn't have good enough data for your area.
I also like that the COMAND voice control is more like a dialog. You can follow up with additional commands. For example after a "Navigate to" command that doesn't find a single unique result you can filter further by saying "Show online results" (Don't quite remember the command, but whatever it says on the screen) to specifically filter. I've had have it happen in the past that I wanted to navigate to a specific place and it found a bunch of addresses it showed to me and none were what I was looking for, but then I followed up by saying "Show online results" or "Show POIs" and one of them actually had the place I was looking for. But with the recent few searches, for most of them it nailed the actual place I was looking for as a single result and immediately started the navigation to it. The most recent one I did on Saturday had two matches. I wanted to go to Stewarts Point, CA which is a small little place on Hwy 1 up north from here. I said "Navigate to Stewarts Point" and it found Stewarts Point, CA and another one with Stewarts Point in the street name. Not even sure anymore if that one was even in California, but I then just had to say the line number, 1 in this case, and off it went. The whole thing only took a few seconds.
Last edited by superswiss; Jun 16, 2020 at 10:36 PM.
I use a combination of Apple CarPlay and the internal navigation system. If my phone is connected then I can just use Siri and say something like "Take me to address/name using Google Maps" and it starts navigation using Google Maps. But recently I've been using COMAND quit a bit with voice command and it worked actually flawless the past two to three weekends I used it to navigate to specific destinations. It found the destination online on the first attempt and started the navigation. It also was quite fast. Is it possible that your car's Internet connection is slow where you are?
Alternatively, I find my destination on my phone and then use the Mercedes Me Connect app to send it to the nav. This is very easy on the iPhone at least as one can share destinations directly out of apps such as Google Maps. If already in the car and the phone connected to Bluetooth, the destination is actually sent to the COMAND system over Bluetooth and it pops up on the car's screens within a few seconds. If done from outside the car, it goes through the cloud and then pops up within a few seconds after starting the engine and the COMAND system booting up.
I'm not aware of being able to turn off the online search, but I believe there are more specific navigation commands such as "Navigate to contact <name>", and "Navigate to address <address>" might work. This might limit the search to a specific source I believe. There's actually a somewhat cool one "Navigate to what3words <three words>". I'm not sure if you are familiar with the service, but you can refer to any 3 meter square in the world using a unique 3 word address. For example "Navigate to what3words trying vibes ruled" takes you to the Empire State Building.
https://what3words.com/
Overall, I've gotta say it works quit well for me. If the online service is down, then the experience is hampered, but as I said, I was actually pleasantly surprised how well it worked the last few weeks, even finding places with foreign sounding names. I actually like that all searches are done at once. I've previously owned Audis and there you had to use a specific command to search online, which is pretty much what I always ended up doing, because its own database was so woefully out of date that it wasn't finding anything useful. Audi uses Google Local Voice Search for their service. The COMAND system uses HERE Local Voice Search. It's also possible that HERE doesn't have good enough data for your area.
I also like that the COMAND voice control is more like a dialog. You can follow up with additional commands. For example after a "Navigate to" command that doesn't find a single unique result you can filter further by saying "Show online results" (Don't quite remember the command, but whatever it says on the screen) to specifically filter. I've had have it happen in the past that I wanted to navigate to a specific place and it found a bunch of addresses it showed to me and none were what I was looking for, but then I followed up by saying "Show online results" or "Show POIs" and one of them actually had the place I was looking for. But with the recent few searches, for most of them it nailed the actual place I was looking for as a single result and immediately started the navigation to it. The most recent one I did on Saturday had two matches. I wanted to go to Stewarts Point, CA which is a small little place on Hwy 1 up north from here. I said "Navigate to Stewarts Point" and it found Stewarts Point, CA and another one with Stewarts Point in the street name. Not even sure anymore if that one was even in California, but I then just had to say the line number, 1 in this case, and off it went. The whole thing only took a few seconds.








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Last edited by superswiss; Jun 19, 2020 at 12:01 PM.
The other side of the argument goes that a carmaker has to create and own the relationship with the end user and not become a "dumb pipe" for other companies. Give Apple all your APIs and the customer is driving a "Mercedes powered by iPhone".
Tip of the spear may be navigation, which many auto companies have completely abandoned. Do luxury marques like Mercedes, Bentley, Audi, Jaguar, etc. really have the resources to play in this game or are they going to go the same route as Honda and the big volume makers?




The other side of the argument goes that a carmaker has to create and own the relationship with the end user and not become a "dumb pipe" for other companies. Give Apple all your APIs and the customer is driving a "Mercedes powered by iPhone".
Tip of the spear may be navigation, which many auto companies have completely abandoned. Do luxury marques like Mercedes, Bentley, Audi, Jaguar, etc. really have the resources to play in this game or are they going to go the same route as Honda and the big volume makers?
Furthermore, the map data these days is not just used for navigation, but also for all the predictive driving assistance and even DISTRONIC. It's used to automatically slow the car down when approaching intersections, roundabouts and even highway exits. This just won't work with Apple CarPlay or AA unless a much deeper integration between the two happens. Audi actually at one point showed of Embedded Android as the new platform for their Infotainment system. Not sure whatever happened to that. Even Google is actually focusing more on Embedded Android than Android Auto. Self-driving or partially self-driving cars won't happen if the car doesn't have its own high resolution navigation system. There's too much at stake for car makers to leave this up to Apple or Google.
Last edited by superswiss; Jun 19, 2020 at 06:09 PM.
I have the 4G LTE module (with Vodafone SIM), but the problem seems to be at either Vodafone or MB itself (all internet traffic goes via a proxy in Stuttgart I believe).
The famous TuneIN problem (overhere in EU at least) happily has been solved, and also might have to do with a proxy (failing to connect over the required https instead of http).
Voice Command is very unpredictable indeed.......have alread version 360, and it works with commands, but not anymore with SMS/text voice recognition (used to work as a charm......). SO much for progress...........
Furthermore, the map data these days is not just used for navigation, but also for all the predictive driving assistance and even DISTRONIC. It's used to automatically slow the car down when approaching intersections, roundabouts and even highway exits. This just won't work with Apple CarPlay or AA unless a much deeper integration between the two happens. Audi actually at one point showed of Embedded Android as the new platform for their Infotainment system. Not sure whatever happened to that. Even Google is actually focusing more on Embedded Android than Android Auto. Self-driving or partially self-driving cars won't happen if the car doesn't have its own high resolution navigation system. There's too much at stake for car makers to leave this up to Apple or Google.






