20. Why is my ECLS COMAND not registering my GPS?Sometimes the ECLS (Europe) COMAND will not pick up GPS signals. This is often due to getting poor GPS signals or interference on the satellite hardware itself, even if the GPS receiver is working just fine. The MB Service Centre will be able to fix this problem. A good example of this is the ECLS system where there are four satellites to track. The position information is sent from the satellite to the COMAND-APS in the MB for processing. However, if the satellite gets no signal at all, the COMAND-APS will not be able to receive the information from the satellite and will not register the GPS information in the MB. The MB will not register the GPS information as a navigation point even if the GPS is working fine. The best way to resolve this is to request your MB Service Centre to code the unit. This is done by dialling the vehicle direct, and getting them to code it (you will need to provide the VIN). The unit will then be re-coded and you should get a GPS working fine.Many other Mercedes-Benz vehicles have problems with GPS. The first thing to do is to check the GPS satellites are working and that there are no faults in the satellite hardware. This can be done by letting the unit sit for a while (say, an hour) and then going out and trying to find the location information from the satellites. It will give an error message if the satellites are failing. I have seen GPS receivers fail when the battery was low.
18. Can I still use the V8.0 DVD map disks with COMAND-APS?No - they are the old map disks with the older map software and COMAND-APS will be unable to recognise them. Please get the V8.0 disks updated from Comand Online Ltd before trying to use them.Comand Online Ltd seem to be expensive for a simple upgrade for a map disk. You can always use the free map disks that are posted on the Comand Online Ltd website.The free disks are for E/CLS/SLK/(etc) and are the last two numbers after the V6.0 disk. You need to be careful as the next free disk (V7.5) will not work with COMAND, but V7.6 will. Please be advised that all map disks are for use with Comand.19. What about the V5.0 DVD map disks?They seem to work fine with COMAND-APS as I have tested them out.They have quite a few features, and while you have to wait for the maps to download on the E/CLS unit, they do not turn off, they work fairly well, and the Manual Map Update will update your maps if your E/CLS uses the 2nd OS of maps. Therefore they are worth a try.20. Can I use the V4.2 DVD map disks with COMAND-APS?Yes - the V4.2 disks are disk compatible with E/CLS/SLK/(etc) and the manual map update works with them.If your A/B/C/(etc) unit does not have V4.2 map disk and you do not want to upgrade to V5.0, then use disk W211 589 15 22 00. The next free disk up (V5.5) will not work with COMAND-APS. This seems to be an update for COMAND-APS and not for the disk.Please be advised that all map disks are for use with Comand.21. What about V3.0 map disks?They seem to work fine with COMAND-APS as I have tested them out. 827ec27edc