Hi, looking for advice on how to proceed, or who / how to contact Mercedes .. I have been having problems with the Comand unit dropping Bluetooth calls, and locking up so that it will not play music from CD, DVD, SD card, Music Register - but the radio works. Switching the ignition off/on does not help, although usually a few hours later works again. Also I had them install an MB iPod kit, and this is really quiet compared to the SD card / Music register. The first time I took my vehicle to Mercedes, they charged me for a diagnostic, and sent me the car back saying they had updated the software, this should solve it. Unfortunately, this did not solve it The problems have continued for 4 months. After searching forums, I thought I was onto something when I saw that there are software upgrades for my system (according to the Forums) that address these issues, and that it is called version 9.29 (01/2010.) I checked what version of software I have - and it is very old .. version 8.13. I printed out the forum posts showing the list of updates, and had a very frustrating conversation with the Service guys - first time they ignored the printout, the second time they came back saying they put my car on the STAR system and there are no updates for my car and the latest is 8.13. Can this be correct ? Also, I see that to get the latest maps, I read that I need firmware 01/2010 - and I want to buy the latest maps - but I am worried that if I buy them and they don't work then Mercedes will simply tell me they won't work on my car and I have wasted £150. Any advice on what to do, as I am getting nowhere with this. The last suggestion was to get the radio replaced under the extended warranty, but so far if has not gone wrong whilst it has been with them - it only goes wrong 1-2 times a week, so they cannot confirm there is a fault to send of for the warranty replacement. Could it be that my car is simply too old, and it won't take the updates?