El, power control, EPC

[Zowie121]

Hiya guys,
I need some help ive owned my 2002/03 Mercedes-Benz C220 cdi for a few months now.
Ive had problems with it starting once its warm it takes a couple of turns to fire up then the other day as it was struggling to fire up i had the above message el, power control EPC
It runs fine and starts fine when cold btw.
Im thinking its crankshaft sensor related i cant get it plugged till tuesday as its bank holiday.
Thanks in advance Zowie

 

[renrutp76]

Hi Zowie,

It could be one of a number of things. A few years back I had a c270cdi, which suffered the same fate, but only under moderate to hard acceleration. Turned out to be multiple failing injectors and a weak to fuel pump. Could also be sensor related. You should get a better indication when you plug into your diagnostic.

Good luck

Sent from my SM-G930F using Tapatalk

 

[Zowie121]

Thanks for your reply renrutp76, it doesnt cut out or anything just issues to start up when its warm hopefully i will know more this week and get it sorted thanks again x

 

[om613]

The first thing to do, which is both easy and cheap, is to change the fuel filter.
After that, go full di-agnostics.

 

[Steve@Avantgarde]

It won't be the crank sensor.

ELPC is usually triggered by a fuel pressure issue, in other words, the ECU sees the injector rail pressure drop below 160bar. You say you have issues starting it and cranking it over for long periods. I would suggest you either have high injector leak off on one or more injectors or your high pressure fuel pump is beginning to fail.

I wouldn't even replace the fuel filter without having some diagnostics done, like a leak off fuel test.