- thank you for your comments!
I also have a SL55AMG with ABC so I'm well aware of this suspension. It's awesome when it works, but of course can be expensive to repair. This CL600 has a new pump and recent flush so it's at least a good base line.
Regarding upgrading Telematics - is this a dealer only job or do you know of alternatives? I have SDS myself, but I would assume an upgrade needs an online connection to dealer network?
Officially, it requires "Online Programming" and an SCN account. Technically, it does not.
It is carried out by inserting a CD (yes, CD, but many times incorrectly referred to as a DVD) into the COMAND. The official instruction say to eject all media from the COMAND and insert it into slot 1 (many insert it into slot 6 mistakenly and it still works - in reality, it probably doesn't matter) and COMAND will display Unknown Audio/Video Format on the display. Then you will go into Control Units -> Information and Communication -> Audio, Video, Navigation and Telematics, and select COMAND. Locate Control Unit Adaptations and select Control Module Programming. It will inform you to insert the Telematics disc in the COMAND and proceed, and you will be presented with a Xentry login box to log into Daimler. If you do not have these credentials, and your version of DAS is old enough and still has the option to do Offline coding, it will search for your VIN in the FDOK and if located it should proceed with the upgrade. I honestly cannot recall a vehicle having the information that DAS is looking for in the FDOK, so it does not proceed.
Of course, if your are technical, there are ways around it if your Xentry/DAS version is beyond the cutoff date of Offline programming. The newer versions *can* be technically modified to restore this feature, and you would need to place the file it is looking for in a certain location in the DAS folder structure as well as provide a DVD of the SDFlash Data in your optical drive (or alternatively, mount an SDFlash ISO in a virtual CD-ROM application). DAS will then instruct the COMAND to carry out the update, and this takes around 50 minutes. Keeping in mind that the W221/C216 has a high power draw with the ignition on/engine off, you will need to connect a very strong battery charger to the vehicle while it is being carried out, or simply go for a nice drive
. It is fully unattended, and the update performs updates on all devices on the MOST ring, including the OASIS chipset on in the COMAND, the VCS (Voice Control System), SDARS (SiriusXM receiver), Sound/AGW module, Tele-Aid, DVD-Changer, etc. It is not complete until all modules are updated. It can mistakenly inform you that the update is complete after updating one module and request you eject the CD. DO NOT DO THIS - it will automatically proceed to the next module. If the CD is ejected automatically, it will pull it back in. It will be apparent when it has completed as it will return to the tuner and flashing activity will stop. It reboots several times during the process so do not be alarmed.
It is worth noting that modifying DAS is in violation of the EULA that you agree to when installing the software.