Hello everyone, I'm Alex from Serbia. I'm kinda stuck with my car it had some problems cranking for a few days but now it won't even do that all i get is a loud fan on 2nd position and 3rd doesn't do anything. I have checked the fuses and relays they all work as far as i know, but I've come to a problem where my obd2 scanner won't connect anymore to the car. I can share more info just ask, but I can't take it to a service because it's not cranking and I can't read any codes. So any opinions are welcome. Thanks
Batrery? How old is it? Tested? CCA? Cleaned contacts?
Quote:
Battery tested on another car works great, tested also it's 86% health and 100% full. Checked all fuses and relays - any special contacts i need to check?Originally Posted by C230 Sport Coup
Batrery? How old is it? Tested? CCA? Cleaned contacts?
2001 C200 Kompressor / 2.0 163ps
smgak
Senior Member
close
Today
- Join DateMar 2023
- Posts:281
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveC230K
-
Likes:350
-
Liked:88 Times in 71 Posts
Probably ECM failure.
Can you communicate with the ABS module, or airbag module?
Can you communicate with the ABS module, or airbag module?
Quote:
Can you communicate with the ABS module, or airbag module?
I don't know how to check that, but i checked and opened the connections and ECU board, it does have some white residue i cleaned it but it's still the same. Still can't read my OBD2 connection with the car. I'm thinking it might be the ecmOriginally Posted by smgak
Probably ECM failure.Can you communicate with the ABS module, or airbag module?
Quote:
Originally Posted by acko8x
I don't know how to check that, but i checked and opened the connections and ECU board, it does have some white residue i cleaned it but it's still the same. Still can't read my OBD2 connection with the car. I'm thinking it might be the ecm
White residue-powder, any idea what this means?
smgak
Senior Member
close
Today
- Join DateMar 2023
- Posts:281
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveC230K
-
Likes:350
-
Liked:88 Times in 71 Posts
Looks like water damage. Find someone who can clone your ECU. That ought to fix it.
I had that problem. My 262K mile C230 leaks. Always has. Water gets in, and really mucks things up.
I got liucky. Once it dried out, it was ok.
Parked in a big storm recently?
I got liucky. Once it dried out, it was ok.
Parked in a big storm recently?
MB World Stories
The Best of Mercedes & AMG
Explore
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Remove from car and lightly brush using toothbrush and white vinegar.
Rinse with high % alcohol. Fan dry or sun dry for a few hours. If still dead you will need to replace/clone. Hopefully they can pull info.
Rinse with high % alcohol. Fan dry or sun dry for a few hours. If still dead you will need to replace/clone. Hopefully they can pull info.
Thanks everyone for trying to help, I ended up finding the problem myself. We had to remove the whole fuse box in the front (under the hood) and open it. Soldering is bad on older models and when a friend of mine checked it under microscope the soldering was cracked and didn't get contact so we resoldered everything and reconnected again. Everything is good now, it was not the ECU! Saved a couple of $$, hope this helps someone in the future
