sory that is so because i just sighn in here, and i just came home from work :)
my car is W210 E250D Turbo
its 2.5 turbodiesel with non direct injection, it has 110kW it has been produced in only several countries 1997-1998 years only

same engine is W202 mercedes C250d turbo

so now i see I'm mest up here a bit, realy I'm from Lithuania so its a bit hard to talk in technical language for me :) because i dont know names of these parts and all these butterfly names, realy if im thinking right way,
we are talking about EGR and all that stuff arround there,
there is short hose with 2metal rings conected, and there mostly are some oil leaking beacause of the presure, so witch pictures should i look at and what shoul i swap ? :) sory for my stupidity but i just bougt my 1mercedes and i hope to fix it as soon as it possible :)

"HUSK" shows a picture of the transducer controling the EGR (exhaust gas recirculation) valve in his photo. Problem is that his photo is of the 3.0L 606.962 engine. Your engine is different.

If no one else responds, I'll look it up tongiht when I get home from work and post a link showing where they are located on your engine.

Poisas - Your's is a 210.015. Here is the electronic parts list for the entire vehicle. http://www.detali.ru/cat/oem_mb1.asp?TP=1&F=210015&VIN=

I do not know your engine....as I said, it was never brought to the USA so no one here will really ahve had any expirience with it. We only got the 6 cyl 606 diesel engine for the the W210. 98-99 had turbo's and 96-97 did not.

I *think* you may have some butterfly flaps in part #101/104 which should be controled by an electronic trancducer. Make certain the vacuum and electrical connections look good. http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=210015&M=605%2E962&GM=717%2E460&CT=M&cat=19S&SID=14&SGR=030&SGN=02

Although I can not locate in it in the parts catalog, you should have a second transducer down by your turbo. There should be a vacuum line connected to the turbo wastegate that leads to the controler; it will be down low and you will prob find it from beneath.

The mixing flaps (sticky/sticking) or the transducer are probably at fault.

You've got a manual trans? I'm envious. We never got that here either. That must be fun to drive with your 2.5l engine. That engine is really flexible and likes to rev......Must be fun as long as you keep the rpm's up.

Did you check to see if that rubber line is clogged? If there is oil coming out of it, the line could be clogged.

wich rubber line ? if from that picture intake manifold->sensor with 3wires,
i didn't but now i gona do it, and clogged means "stuck"? or filled up with oil ? :)

yep i got manual trans, but its not fun for the moment ;) but i burn from desire to fix it because i know how this baby should fly.

i read this tread
http://forums.mercedesclub.org.uk/showthread.php?t=9333&page=2

they say that the sensor is the problem, how to chek that the sensor is working fine ?

The UK forum is probably a better place for info for your engine. No one here will have had any expirience with it in the E-Class chassis with computer controls. The most recent 2.5L we got was in ~'93, when most things were still vacuum controled.

this car is vacuum controled, when i was in diagnostics, they laugh and said that this car has so little electronics, nothing to diagnose almost ;)

That is not correct. Your car will comunicate and tell you OBDII engine codes using a simple scanner. With a MB Star Diagnostics System equiped laptop it will tell you tons more real time data about numerous onboard systems (i.e.: ABS, BAS, SRS, Trans, engine, climate control, to name just a few)

This is your computer box. http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=210015&M=605%2E962&GM=717%2E460&CT=F&cat=45P&SID=54&SGR=080&SGN=04

Anyway, your problem should be related to the previous part (or the parts that activate/control it) that I pointed out for you.

from the boost control module (should be labelled) Clogged means filled with oil or some sort of obstruction in the line which prevents pressure to be passed through the line.

today i checked this, this hose were totaly clean, no oil at all there,
also i did a test, i removed that plug with 3wires, and try to drive a bit,
and then it realy feals like 3k rpms and no more very slow acceleration,
when i put it back, then it became same, but my cousin also tried my car, and said that it should be more accelerative .. realy i dont know, my friends told me about

http://www.mbclub.lt/components/com_joomlaboard/uploaded/images/PA280066.JPG
this is not my cars picture, just the same engine :D

egr, and it can couse poor acceleration,

and i notice strange noise when i stop the engine, open the hud, and i can hear something like Grrrrr noice, from the vacuum system, i press that EGR's hose with the fingers, that noise becomes weeker. How to check that valve works corectly ? i removed that black hose, and started the engine, i felt with fingers no flow or inflow from that hole.

could it be that the map sensor is faulty ? it realy feals when you plug it off, and then i have slightly reduced power mode :) totaly low power :) but with map sensor ON i got abit more power. I notice one more thing,
there is totaly zero of "diesel cars " smoke, even how much i push the "bottom" its totaly zero smoke, so my opinion is that it could be the reason of map sensor failure, that tells to the ECU wrong presure mesurements, and ecu gives wrong signal to the diesel pump, witch doesn't suply enough fuel. So is it possible to car service to check that the map sensor is working corectly ?

about boost in intake manifold..
 

one more question,
i notice that there is olmost no presure in the intake manifold (i chek that soft ruber part of intake on the left of engine, i push accelerator and sqeeze with my left hand that hose, and i can keep holding it as long as i want,
:) then i try to do the same with BWM 525TDS 1998years :) i could even see with naked i how the hose was expanding because of the pressure of turboboost, and it became very hard. I could'n press it. Today i went to the service, LOL, and told about that problem, they said that they found a solution, they "cheated" EGR valve, and made some vacuum system improovement :) but i wont feel any difference, i have 15litres diesel for a 127kilometers