Does anyone know how I can update the maps on an EQS without involving the dealer? I did it once on my S450 and it was easy: load a USB stick and plug it in to trigger the update.

Dealer wants $270!

 

You can try from Mercedes Me app,

 

I don’t see anything about this in the app. Where should I look?

 

I just checked my EQE SUV manual and there are several pages devoted to updating maps via USB.
I think the procedure would most certainly be the same with the EQS's.
If a manual did not come with your car, download one online. I like the digital version because one can search for words and terms.

 

...in the "digital store".

Here in the EU it can be acquired by month, by year, ...

 

Here it is for future reference:

https://www.me.mercedes-benz.com/pas...ap-update.html