I have a 2000 S500, and a few months ago, the navigation stopped working. I bought the car about a year ago and it (navigation system) was working fine until earlier this year. Whenever i push the NAV button, the screen either reads "No Navigation CD, Please insert Navigation Cd" or "CD Reading Error, Please change CD"--the navigation cd is in the system while it displays these messages. I have also used another navigation cd and the same messages appear. Any suggestion as to what i can do to fix this problem? Thanks.

 

Have you tried visiting your dealer? Btw, nice name.

Regards,
Armani (The Original)

 

well not yet, i was wondering if there was a way to fix it other than going there. If there isn't, i think i'll take it there.

 

I understand that is not an uncommon problem. Apparently the comand 2.5 drives are prone to dirt build-up.

First step is to try to clean the CD drive (the laser lens). Just buy a CD drive cleaning kit from Radio Shack or Best Buy and try that first. If that fails, you can still make a trip to the dealer (hope it's starmarked).

Good luck!

Wolfman

 

i tried the cd lens cleaner....no luck; i guess the dealer is the next step

 

I have a S4matic 2004. Recd vehicle 10/03.

My navigation is also very sick. I have been to the dealer scores of times in an attemp[t to fix but nothing has really helped. It appears as though there is some conflict in the command unit.

I have found that by shutting down the vehicle, which even means removing the key for two minutes and then restarting the navigation will operate normally.

This has been a huge problem for me.

The dealer has totally replaced the nav unit; has reflashed new software and just about everything they could do they have done---nothing!!!

 

Not sure if this feature is the same for my 2000, but the my2003 Comand plays Nav and audio CDs.

If my NAV stopped working for any of the 7 nav CDs in the case, I would pop in a regular audio CD to check if the platter motor and laser carrier is working correctly.

If I didn't hear audio either, I would assume it was a disk drive error.

 

My 2000 S500 also experienced the same problem you have, I think there's no way to fix it other than replacing the whole command unit...because that's what the MB dealer did to my car (by replacing a new 2002 version command unit under extended warranty).

 

Command 2.5 doesn't play CDs. I do not know why.