zoni15

Hey! Can anyone help. I bought a w205 c-series 2015 model year. The passenger's footwell is soaked with water, including all electrical equipment. I scanned the car with Autell's reading device, which gives a lot of codes. Power does come to the car, but it won't start, even though I have enabled the start via the reading device. None of the buttons and levers on the steering wheel work, nor does the handbrake button. I have looked at all the wires and electrical devices from the footwell to the top and let them dry. The car is crashed in the front, but that hardly affects the situation. Sorry for the bad English directly from the translator






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Cosworth2000

Did you purchase a flood car?

Anyways, the passenger side flooring has some very important modules there including the CAM BUS bar. You will need to first further into the codes, check the modules to make sure they are okay, check each wiring for any connection problems and replace anything which is damaged.

zoni15

it had just snowed on the floor of the passenger side of the car and it had melted there. I still have to examine those modules with the fault code reading device, at the moment it doesn't seem to be able to connect to anything. I checked all the wires and everything seemed to be fine. The circuit below is probably wet, so I may have to replace it.

Cosworth2000

You need to see if the wires are continuity or ground

zoni15

Yeah i checked the wires and they are all okay. Next ill probably check the aux battery.

zoni15

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zoni15

I think I found at least part of the reason for the electrical problems. I removed the aux battery and it looks like this.

Cosworth2000

Wow... have you tried to drive the car without that AUX battery to see if this resolves all you problems?

zoni15

Problem fixed. At first I thought that the car requires a working aux battery to start at all. Today I examined the abs pump, which had partially taken a hit in the crash. The abs module plug was loose, which I noticed by chance. As soon as I put it back on, the car started normally and all the problems were fixed