Plz help! small electrical fire 07cls550

[Alan Disbrow]

I recently just bought a 07 cls550 that i absolutely love it has 118k on it & is in very good condition i also have a 02 clk430 that ive had for yrs but just the other nite while driving cls550 the cabin filled with smoke & long story short somehome a phone charger had melted & somehow cause a short wich somehow didnt blow the fuse to the rear 12v socket wich ended up melting/ burning about 10-15ft of wiring i have replaced all the wiring as far as i can see & or get to the damaged wires but i still have abs not operative & teleaid not operative also my steering feels heavy almost like no power steering but not quite that heavy also my scan tool will power up but will not communicate at all with vehicle i have checked all fuses multiple times i have also replaced the rear fuse box & relays & fuses but i still cannot find what is causing my malfunctions also the yellow/black wire that plugs into the rear 12v socket is somehow still grounded & i cannot figure out why but everytime i put a 15amp fuse in #13 socket in rear truck fuse box it pops as soon as i turn the key on i have been working on trying to fix this car for like 3 days straight & i have also been searching everywhere for wiring schematics for this vehicle & cannot find anything at all any help would be very very much appreciated! Thank u

 

[John Laidlaw]

Wow some tale Alan!
Thought we were going to talk ABS but I was wrong...so far
There are some good car electrical experts on here, I am not one of those so someone else will chip in shortly
But just one thing, sorry I hope this doesn’t come over badly, but in future could you include some punctuation, separation or paragraphs in your posts please ?
Don’t know about others but one great long sentence loses me almost instantly!
Thanks!

 

[Craiglxviii]

I’m guessing you’re over the pond, Alan?

 

[ZZZZ]

the yellow/black wire that plugs into the rear 12v socket is somehow still grounded & i cannot figure out why but everytime i put a 15amp fuse in #13 socket in rear truck fuse box it pops as soon as i turn the key on

If you mean there's a short there, have you check the actual plug - I see you're reusing it, but there might be melted plastic [wall between pins] inside, causing the short.

Oh, and welcome to the forum

 

[Flyinspanner]

Maybe getting it connected to STAR diagnostic system could diagnose which units may now be at issue.

I suspect the blowing fuse is due to part of the loom on that circuit suffered damage during the initial incident, and melted wire insulation/unit damage which is now short circuit, hence fuse blows.

 

[Flyinspanner]

You may find fuse info on this thread:-

http://www.benzworld.org/forums/c219-cls-class/2939721-rant-warning-questions-about-fuses.html

Looks like they have a CLS forum, so maybe a call for help there too may get you some help.

Good luck with it

 

[joderest]

OP stated that a scanner will not connect, so will star connect ?. It could well be that this has damaged the main ECU, just a guess

 

[LostKiwi]

At a guess it sounds as though some additional wires in the loom have had their insulation damaged and from the symptoms I'd be looking at the CanBus.