cm60k

Hope so,,

prefer to check or replace the Regulator as well..

;ZAYED;

PJmak

Just replaced the alternator but still no go :/.

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.....

PJmak

M taking off the couls, wires, and injectors tomorrow.

Need to.get this thing back on the road.....its been almost a month

cm60k

MAF or CPS, do you have any spare of these..??

;ZAYED;

mickey13

reading that bad key can cause this too. check battery or use spare?

DRBC43AMG

Good idea Use your second key if you have one as long as the battery inside is still good.

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....).

mickey13

yeah and also keep open mind that it may be more than one problem. i notice on my car everything is fine and then multiple things tend to fail at the same time.

mickey13

zayed, is the regulator inside the alternator or is it outside?

w202mylove

Seems to be a real mistery this problem.


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?

PJmak

Tried a spare maf and it didnt work.

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

PJmak

Its under a plastic cover on the back.

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

cm60k

Mickey,

^^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;

cm60k

Seems weird..!,

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;

PJmak

Will do that thanks man

PJmak

Couldnt find my spare key because I moved a few weeks back and have no idea where I packed it.

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?

PJmak

Took off and cleaned the injectors and checked all the breather hoses. Still no luck..


Tackling the cps today but dont have the right size torx socket

PJmak

One of the three coils that showed up as misfiring.

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

cm60k

Is there a leak in the valve cover..?,, is that white liquid penetrated in the coil plug..??

looks like heatsink or silicone paste..!!

;ZAYED;

PJmak

Theeres a small valve cover leak but not on that side.

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?

cm60k

You can simply unplug each coil while car is running, and see if there are difference, do that with all coils,

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;

PJmak

But the car diesnt run

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

DRBC43AMG

The white traces, could it be salt residues?

cm60k

Ahh sorry, i thought it's running, then shut off after a while..!

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;

justinwrock

Hey PJ - long time, no talk. White could be residue from evaporated water... (have you ever pressure washed your engine and/or had a coolant leak?)

If needed, I have a set of etorx, spare CPS, and an SDS... Any/all is at your disposal if you need it.

PJmak

Yea it sounds like it wants to but it just cant