When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I like to know how hard is it to update the NAV. in my 2007 S550?
Do you actually mean the telematics update or are you just after updating the maps? The latter is easy with an update DVD, the first one needs Star as mentioned above.