I have a 2006 SLK280 sitting for years due to electrical problems. I decided to fix it today because a random cop decided to drive around my neighborhood to find abandoned car.

I bought a new battery and after the replacement, the car did not crank and the radiator fan full blasted. Also, I cannot scan the car with my obd2 scanner(bluetooth scanner).

It has a lot of codes, mostly battery related(see pics)

what should i do?








I will push the car onto my driveway tonight then continue fix it.

 

Alot of meaningless codes can pop with low voltage battery. Unplug the fan....Hook Up your new battery....and erase all codes. After that whatever codes appear might be more relevant.

 

Where is the fan connector location?

 

I’d start looking near the fan.

 

I washed my car.
1 hour later, while driving, it just shut down.
I have since looked around the Front SAM and the ECU connectors. There's no mositure.
Upon further inspction, one of the legs of fuse 65 (40amps) had some white oxidation.
All the fuses check out (I cheked every fuse there) they are all good.
I haven't checked the relays.
Nor have taken apart the SAM or inspection.
I did check the ECU connectors, didn't find any oil wicking or dirt.
I have cleanded all the electronic connectors (ECU, SAM fuses, and SAM relays) with Contact Cleaner spray.
At swith position 2, the fan screams.
It seems like a communication failure. I get the following errors with my Scan tool.
ESP (Electronic Stability Program) Module Codes:
C1038: Engine Control Module Not Identified Or Incorrect Control Module (Current and Historic)
C1027: Fault In CAN Communication With Control Unit N15/3(ETC [EGS] Control Unit) (Current and Historic)
C1022: CAN Communication With The Engine System Is Faulty (Current and Historic)
C1025: CAN Communication With The Engine System Is Faulty (Historic)
C1700: The CAN Communication Of The Engine Control Module Is Faulty (Historic)
C1014: Y10 (SPS Solenoid Valve) : Electrical Fault (Historic)
SAM_F (Front Signal Acquisition Module) Codes:
9036: The Input Signal 'Circuit 61' Is Not o.k. (Current and Historic)
9000: The Component Or The Signal Line To The Component A9 (AC Compressor) Has Open Circuit Or Short Circuit To Ground (Historic)
9012: The Component Or The Signal Line To The Component E5/1 (Left Fog Lamp) Has Short Circuit Or Open Circuit (Historic)
9029: Control Module N22 (AAC [KLA] Control And Operating Unit) Is Not Sending Any Data (Historic)

What's going on?
Should I pull the SAM and inspect the wiring harness and connectors?
Could this be an ignition issue?
Has anyone else experienced anything like this?

Tha car is a SLK 350, Year 2005, with 65k miles.
(I saw another listing for similiar symptoms on a SLK2280, but I have different errors and different car)