AviBelisha

hello my C200 CDI W203 year 2007.
light an error : P0263 Cylinder 1 Contribution/Balance Fault.
i would like to sent the injector for test/repair.
but the place i want to sent it, does not remove it
so i need to uninstall it.

BUT i don't know witch one is no' 1 .

the one how close to the grille or the one how close to the Window.

pls help.

thank's.

Carsy

MB number from front ie #1 next to grill, #4 next to flywheel.

To confuse matters, Peugeot number from the rear .

Micah / AF1 Rac

You really want a mind f-er...I've a Ferrari 308 2V 3.0 motor on one workbench right now, I cannot even accurately describe the numbering system other than its banked like this if memory is serving, front bank left to right 1,2,3,4 right bank 5,6,7,8? Afaik, all the Benz inlines are counted front to rear?

AviBelisha

THX for hellp.
so just to make sure.
this is the one i remove

Micah / AF1 Rac

Yes, I think that's the one. Too bad they are not cheap like gasoline injectors, I would have already upgraded mine if that were the case.

AviBelisha

hey.
o.k i remove this injector and send it to Renovation in a good Reputation workshop.
i received it an install it and...
again P0263 light on (after reset).
last time i bought an injector (new one) the error ligth on so the mechanic told me to go to the Authorized workshop to insert the new S/N to thee main ECU.
in this time in order to save money i just restore it.
do i need to enter some new value again to ECU? (maybe Pressure?)
before i go back to the workshop how Restore it.

or maybe it's other problem.

please help.

thank for all.

isstay

I am not sure how you read your code but as far as I know there is no P0263 code in 320 CDI diagnostic table, at least. I would assume same for you 200 CDI with OM646 engine that it will use same MB codes. In P02XX group are few possible errors but they are related in general to electric problems.
I am attaching the PDF I made while back with all CDI error codes for reference:

AviBelisha

o.k
i see the fault by Torque app.

isstay

I will go to garage that has Xentry system to get legit diagnostic before I spend any money on future repairs.

Plutoe

Just to clarify the following quote-----"I am attaching the PDF I made while back with all CDI error codes for reference---Unquote

Although great information, those faults apply to the 648 engine not the 646 engine. However correctly stated there is no MB cross reference to P0263!!(when was the last four cylinder diesel exported to the USA and what countries outside the USA uses P faults)

FYI, there are six seperate 25xx.xxx cylinder one injector faults

The other bad news is that although the OP says he had the CDI-3 injector rebuilt, I doubt that very seriously. He got ripped off!!

The other bad news is that his mechanic did not follow the prescribed DAS Xentry "learn in process" when you change an injector----the fault will never go away until that process is followed!!

AviBelisha

thank you all for explanation .

i think i wait from go to workshop here with Xentry.
every visit There cost me ~100USD.
so i think i order star C3 (from aliexpress) and try to learn the "process".

http://www.aliexpress.com/item/2013-...478592693.html

anyway does someone have some Experience with that unit?
is it working well?

one more thing my car is C200 W203 CDI 2.2 year-2007- 122HP, 90KW
and do 150KM but usually feel very week & slow response.
i want to try maybe fist to upgrade Air Filter to KN filter- (Worth it?)

and again thank for your time for helping !!!
Great forum !

AviBelisha

hi.
o.k i back and after i receive my star C3 connect it and do a quick test and scan this is the result.
1:


2:
than i test injector calibration timing


3:


after that a pressure test
4:

5:


i feel car running with less power. bit shake and even the engine sound is more hard.
last week i change oil and see under car a big tube with a oil leak on it as a saw in a schematic i think it's come from the turbo unit.

thank all for help.

Plutoe

Test 2 and 3 data was not posted---please repost!!

In any event, if test 4 was done properly and more than once then I would say the injector problem is the least of your problem----you have a bad cylinder 1 compression issue and that issue is what is causing the noticable loss of power----that is pure speculation!!!

isstay

Should he calibrate his injector in order to get correct compression test numbers?

Micah / AF1 Rac

If that compression test is accurate no amount of injector calibration is going to fix the purely mechanical compression issue. Am I reading it correct that the sheet is saying ZERO compression cylinder one? If so I would also expect noises, even if no noises a bore scope could come in very handy for verifying cause. Keep us posted.

Plutoe

The bigger problem that makes this post more entertaining is that you have a dude with no experience gets a DAS Xentry system for Christmas and starts to diagnose his car.

We have know idea about the credibility of the data, let alone the operator,however as just stated a faulty injector has nothing to do with that amount of difference in the posted compression test. This is one big CJ

nelbur

I believe the CDI injectors have a very specific installation procedure that requires a new copper seal, a new stretch bolt, and a complicated stretching technique. If it was not installed properly the low compression could be from an injector that is not seated. It seems unlikely that the compression would be 0 though. It sounds more like a valve problem.

Micah / AF1 Rac

Missing valve tulip/head or hole in piston, the two most common causes on bikes I see of true ZERO compression values. Leaking valves, even slightly bent ones, and leaking spark plug threads or injector seals still show some compression unless it is REALLY bad. Video with good audio of a cold start with hood open? Somewhat informed guessing is basically fun. I'm not taking pleasure in your pain, just to be clear, I'm genuinely interested in the root cause of your problem as I am sure you are too.

isstay

Since he is using DAS for pressure testing it can be bad glow plug (those have pressure test function) and this can cause rough running.