car died on highway..




Didnt bother checking this one because its low miles and the car ran perfect before it was parted out.
I dunno what to check next :/
CPS, TPS.....




Also getting the battery charged for 24h could be a safe bet to make sure it's not on the brink of dying. All my battery failures have occurred when temps start dropping fast in the early winter months (usually around November....).
The Best of Mercedes & AMG
Had a similair problem few monts ago with my M113 CLK.
Just suddenly the car died while driving. Difference is I was able to restart immediatly. Few days later it happend again, lose off power and shutdown.
They fixed this by replacing the Alternator. Never happened again.
I dont see how this would really help you but maybe you can use this information?




I got a brand new key less than 6 months ago so its not that. I will try my valet key just in case, thats the only other one I have
Last edited by PJmak; Dec 22, 2016 at 10:30 AM.




You can easilly get to it without taking the alternator off if you guve your self enough room under the car.
I took my whole thing off because I wanted to replace the alternator




^^PJmak is correct^^,
it's on the back of the alternator, it's white piny, super easy to replace,,
same theory with "W124/W140/R129/W210/W208/R170"
http://www.pelicanparts.com/techarti...eplacement.htm
http://www.benzworld.org/forums/r170...nt-slk230.html
http://www.benzworld.org/forums/w163...ement-diy.html
;ZAYED;




CPS is the only this to remain,
check the battery of the key first, if they OK,
then try to unplug the battery with ECU connectors for about an our, then plug them back, after that, don't start the car,
just put the key on position 2, diagnose the car, if any "security/infrared/ignition/SRS" code appears, then got an issue with key access file in the ECU,,
hope don't have that, but prefer to do this to make sure, all these are fine..!
;ZAYED;




Swapped batteries with my c280 key(which works) and no go.(my c43 key is brand new just got it this summer)
Btw in case its the cats...can I drop the whole exhaust by just unbolting it from the engine or is it bolted in somewhere else?
I kbow it hangs on those rubber bushings in the back and probably somewhere in the middle right?




Whats the white stuff anyone know?
Btw I dont have acess to a multimeter today. Is there any other way I can test these? I took allofem off and I wanna testem.
I kow im doing this backwards and should have checked these first but my fuel pump and alternator needed replacing anyway
Last edited by PJmak; Dec 25, 2016 at 12:48 PM.




The white does show inside the coil wire btw. Also it showes a bit on almost all of them.
Do you know a way to test these without a multimeter? I dont have one today?




after that, diagnose the car & see if ECU saved all coils codes,
then clear the codes, diagnose it again, if any of coil code appears again, means you can figure out positively which coil that bother the ECU,,
after doing all that, try to pull out one spark plug to see if this whitey sneaks there..!
;ZAYED;





I guess I could swap couls with my c280 but thats too much work. Maybe Ill wait till my brother can bring over the multimeter. All stores are closed today....its christmas




don't think bad coils could cause the car to shut off, unless if some coils connectors got loose, that will interrupted the MSG/ECU file,,
is the car cracked but not fire-up..??
;ZAYED;
If needed, I have a set of etorx, spare CPS, and an SDS... Any/all is at your disposal if you need it.


