Sitr00n

I'm having a issue with my 220 Diesel. Sometimes the EPC lamp stays on after starting the car, but then disappear after one or two restarts.

I'm thinking a bad sensor or something, but i'm kinda fresh to both the car and mercedes in general. Anyone had a similar issue?

Would be very grateful for any help at all!

cm60k

I heard bad fuel filter & dirty injectors could cause this, but NOT sure if you having the same issue..!

http://www.mbclub.co.uk/forums/engin...c-warning.html

ZAYED,,

Sitr00n

Thanks for the reply

That's the thing, if i don't restart my car and leave the light on, nothing changes. It still handles and sounds the same, no cut-off issues or nothing.. Think i need to get my hands on an OBD reader to figure this one out..

cm60k

Sure, agree with you, better if you can diagnose the car,,

CODES will TELL..

ZAYED,,

Sitr00n

So today i visited the local MB workshop and had them diagnose the car for me. They didn't get much out of the errors as some of it points to a faulty diesel pump, which i find implausible since i can drive the car just as fine WITH the warning-light, as without.

Hoping someone here with any experience could help me with understanding the codes, as i'm new to the whole OBD-scene..

Thanks in advance

003stars

Well, I will do clear all code and drive car until CEL comes back on all or one code? Then I will go next if I have same problems car.

cm60k

^+1^,

Why they NOT clear the codes, then reset it..?, it will helps to see if you have actual codes stored in ECU memory..

ZAYED,,

Sitr00n

Is there any way to do this without any OBD gear? I had to pay just to get them checked..

Sitr00n

UPDATE!

The light persists, but since winter temperatures are here, the first time i start the car, the light disappears till next time i restart the car, then it's the same procedure.

Any ideas?

Plutoe

Looking at the old HHT tester results it looks like you have a low voltage situation and therefore I suspect that you have issues with your charging system----In any event that is where I would start!!!

Sitr00n

Noticed tonight that the interior lights flimmer when i use the el. windows/roof. Could this be of the same issue? If so, what could cause this?

cm60k

Did you check alternator/alternator regulator, maybe one of them goes bad, then reflects all voltage current..!!

ZAYED,,

Plutoe

Yes------you charging system sucks!!

Sitr00n

Aye.. but would this cause the epc light?

cm60k

It could be..!,

when alternator or alternator regulator goes bad, it can affect to the WHOLE Electrical system...

ZAYED,,

Sitr00n

Where or how do i check alternator and/or alternator regulator?

cm60k

It will be easier if you can use "multi-meter ", cause #s in the meter will tell if alternator is working well,

If the alternator is working well, your multi-meter should read between (13.6>>>14.4),

If it is reading higher than 14.8>>15.5 volts (greater than 15 volts) it is possible that the alternator regulator going bad,

If meter reading lower than 12.8<<<13.2 volts, it may have bad battery or engine idle is too low for the alternator to put out sufficient voltage,,

also check the condition of your battery & v-belt isn't get loose...

ZAYED,,

Sitr00n

Thanks a lot, zayed! I will check this in the weekend!

cm60k

....

ZAYED,,

nihatak

Hi.Have you discovered what were causing epc error. I have same model and same problem for 4 years