bought 99 C280 and have some questions
- I just received one key for this car, does it come with more than 1 key? On this board I heard $80 - 140 for a key that can only be bought at the dealership!!!!
- How can I tell if this car uses a synthetic oil of regular? Are there any disadvantages from going to synthetic to regular oil or viceversa?
- Also I do not have a radio code, how do I get one?
- About the MAF and head gasket, what symptoms should I watch for that will tell me it needs replacement?
- It shows -1100 in dash display telling me its overdue for oil change, anything else I need to do along with the oil service? If I have patience can I do most if not all of the required maintenance?




- key - you should have gooten 2 - the price seems right to acquire it from the $tealership.
- oil- should be discussed in the manual - I would change it out to synthetic.
-radio code - should be in one of the pockets in the manual
- MAF systoms - C.E.L. ( check engine light ) sputtering , loss of power.
- head gasket - oil in the anti-freeze
- maintenance - if mechanically inclinded you should be able to perform most maintenance issues.
Good luck.......post some pics.

Trending Topics
There are A & B services. Although they also vary in scope according to the milage on the vehicle... do a search and use Mobil 1...
Good luck!!
Last edited by Cyan; Jul 20, 2006 at 02:43 PM.
The Best of Mercedes & AMG




1.) Turn key in steering lock to position 2
2.) Within 4 seconds press"o" button twice
3.) The present staus is displayed.Within 10 seconds turn electronic key
in steering lock to position "O"
4.) Press and hold button "o" while turning electronic key in steering lock
to position 2 again.The present status for days or distance is displayed
once more.Continue to hold button "o"
After about 10 seconds a signal sounds and the display shows 10k miles
5.) Release button "o"

My car was a HAIR low on the dipstick and I added a squirt of Mobil1 to just to make it right. The moment I pressed the service (0) - the extra miles were added to the service display.




