SOURCE: How do i program the garage door opener function on my 2003 C320
go to website - homelink- for answers
SOURCE: the interior door pull handle of my 2003 mercedes
Check with salvage yards first - you might be lucky!
SOURCE: how to remove a radio from a c320 with navagation
they are secured with 4 bolts unlike the previous models that required keys. You must remove the console trim and ashtray. possibly the a/c/ unit and upper center vent. Just be careful not to damage the fiber optic cable that attatches to the back of the unit.
SOURCE: 2003 Mercedes C320 coupe. Car died on my way home
Hi ddansvob-
Most of the codes for Mercedes C320's can be cleared (at least temporarily) by disconnecting the negative terminal of the battery and leaving it disconnected for at least 1 minute. I would give it several minutes just to be sure.
There is also a reset procedure that you can use that involves disconnecting the battery, turning the ignition to position 1 several times and then reconnecting the battery. That procedure can be found with a google search.
Possibly the easiest way though is to visit an Autozone or other similar store that has an OBDII scanner that they will use for free on your car, and have them reset the codes. If there is an actual issue with a sensor, etc. though, the code will come back up after the car has been started a time or two. If that is the case, you are going to have to troubleshoot the actual cause of the code, involving finding a Mercedes shop that will help you with identifying what sensor(s) are causing that code to show up.
If your mechanic used non-OEM parts/battery, that is very likely to be the source of your problem. Assuming that they didn't do that (which would be unusual for any mechanic to do), you are likely looking at replacing a voltage sensor or part of the voltage regulating/distribution system. If you get to that, you are REALLY going to need an experienced Mercedes mechanic.
Good luck!
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