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wcsmith88 06-26-2019 04:30 PM

2010 C300 Another no start…
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Like many of you with theses issues I scoured the internet/forums/U-tube and even under rocks for a solution. Unlike many of you with ESL issues…I think I have something different and here is why. The vehicle will lock and unlock with both keys as normal. When I open the door, the left instrument cluster has the high beam light indicator illuminated and the right cluster has the fog lamps illuminated, orange/yellow on top and green just below it. When I insert the key the normal screen appears in the center. Upon turning the key, the ESL can be clearly heard…I also have a 2008 C300 and the sound is the same in comparison. Back to the 2010, as I continue to turn the key I get the full range of xmas tree lights including the warning indicator between the left and center instrument cluster. The center cluster begans to cycle through messages…airbag not functioning/tire pressure monitor not functioning/ESC inoperative… Other items of note, the headlights/tail lights will not turn. The radio, windows, locking and unlocking the car works fine but without the flashing lights indicating the car is being locked or unlocked. There is no clicking when turning the key all the way to the right for starting. Many of you may be thinking battery…my first thought as well…I purchased a new battery from Mercedes and checked it after it did not solve the issue…its putting out 12.36 volts. I swapped out the starter relay from the 2008 C300…all was the same as stated above. If there is another fuse I should check please be specific as to what fuse and its location…I’m at the point of towing to the dealership. I have also tried starting the car in neutral…nothing! Help!!

Noodles 06-27-2019 10:22 AM

Has the car been scanned with a scan tool capable of reading MB proprietary codes?

If I had to guess at this point I feel there is an issue with the SAM under the hood.

wcsmith88 06-27-2019 03:40 PM

No thats my next move...I'll have to get an OBD with those thoughts on the SAM as well!

Noodles 06-28-2019 10:38 AM

The Foxwell 520 or the Autel MD802 should be able to help a lot at a reasonable price.

Either one will pay itself after you use it twice.

wcsmith88 06-28-2019 09:12 PM

I'll post what I find...

wcsmith88 07-08-2019 07:55 PM

It was recommend that I use the icarsoft, as well however I had already purchased the Autel* can not establish a link...I've tried repeatedly and tested the unit on my other cars with no issues linking up and giving me a readout. *I would think the Autel would at least link up as its Mercedes specific??

Noodles 07-09-2019 10:14 AM

That Autel has problems with MBs.

This Autel works. I have one.

wcsmith88 07-09-2019 09:18 PM

On order...should be here Thursday...hopefully some insight!!

Noodles 07-10-2019 02:28 PM

I was running your issue past a senior tech and there is small chance that if the front SAM is totally fubared that the CAN will not allow com to the ODB port.

Did the Autel 319 light up when you plugged it in to the port?

wcsmith88 07-10-2019 06:28 PM

Yes it lit up...but could not establish a communication link. I have the MD805 arriving tomorrow...Thursday...the exact one you pictured in your link. Hopefully it will get beyond that point.

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