I did a search for this and I didn’t see anyone with the same problem! Last week my check engine light was on with the following codes 0720, 0500, 1605, 0600. Well this week it’s gone! However a new one has come up, When I try to unlock the car I have to get right up to it and I still have to press the unlock button a few times before it opens, the garage door opener, sunroof, sun visor light and another thing have stopped working. I know I’ve checked the fuse and it’s good. I’ve also checked the battery voltage on the AC unit and it shows 11.5~8 with the car off and 13.2~3 with it on. Any ideas anyone? Thanks for all the input in advance.

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98 E320 175,600m
99 ML320 175,500m
as of 12/2012