I have an 01 C320 Sedan-for the last couple months I have been having a series of problems with the electronic systems in my car. I have to jump start my vehicle every morning, unless I have driven it over 60 miles Approximately- once jump started it usually holds the charge for about 4-5 hours before having to be jumped again, unless I have driven it quite a while. I have replaced the battery recently-6 months ago- and 1 year prior to that I replaced the battery and the alternator. Lately,I've noticed odd things happening. For instance. I hit 2 buttons on the AC at the same time once and all the windows in the car automatically rolled down- Recently I went to roll down the left rear window, and the right window rolled down- I then hit the button for the right window and the left window went down- It did this until I turned the vehicle off, and restarted it- The car is constantly stuck on defrost, and won't produce any heat, and the blower for the defrost on the front windshield is stick on, andwon't blow through the upper or lower air vents to provide air for car- andrecently, when the vehicle has been driven for any moderate distance, it randomly won't start for long periods of time. It will turnover w/no problem, but it won't catch to actually start the vehicle- I was told there is a sensor on the crankshaft that might have gone out, or that it could be my cylanoid or starter- What could be causing my car to have these types of problems- I recently noticed thatthe information button,and the tele-service button are not consistantlylit or working like they used to- when I hit them- nothing happens. Do these problems seem to be related, oram Ijust getting bombarded with several odd problems at once?

Sincerely,

Ronnie

 

I'd like toassume your car's computer is bad, that's all I can think of. However, I am not a mechanic so don't go out and buy one...