pvaz

Hello,

I'm having some trouble with my 2010 C300. I was using it the day before yesterday and it had no issues. Yesterday I wanted to go use it and the wireless entry didn't work. I used hard key to get in and there was absolutely no power. I used the key to try to turn the car on and it didn't work. The information cluster didn't work. The car has absolutely no power anywhere. I thought it's the battery so I got my friend to give me a jump but no luck. I did a little search and thought it might be a blown fuse so I got a multimeter and checked the resistance of all the fuses in the front and the trunk. They were (unfortunately) all good.

I don't know what this could be. Any help is greatly appreciated.

Thanks

Demvang

Fully charge the battery and see how it goes.

pvaz

I fully charged the battery and no luck, still no power anywhere. Any other suggestions?

C300CA

Was it absolutely nothing? No clicking? No sound at all? Could it be the ignition module/switch?

huotalicusC200K

its probably your esl malfunctioning
when you put your key in the ignition d you get the winding noise to that authorises your esl and eis ?
if not its probably the esl it happened to me and i **** myself then with some research i managed to fi it ...but be warned its a big job and u should only attempt if u can get the esl to unlock
and only attempt to open the esl if your skill level with electronic is somewhat good...

heres a clip


hope this will help you out

vodoolounge

Hi Pvaz,
The issue is the SAM unit , if you are getting power to the dash and radio etc works then its the EIS unit , check the relay for this , otherwise, no power at all means SAM unit
TEST:
remove the alternation connection to the SAM unit and connect a battery charge to the jump point on the unit , under the RED slider and connect the groung unit to ground, if you still get no power at all you need to replace the same unit. its a pain to get out

hope that helps

JettaRed

iTrader: (1)

Four years later....

Still, good to know.