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I've been shopping for a W211 CDI and looked at an '06 E320CDI yesterday with 120K miles. Perfect cosmetics and drove well however, it had a CEL and an odd sounding OM648. Seemed like a single cylinder miss, was showing some black smoke off idle. I did not hear what sounded like a leak nor did I see oil, tar as the engine cover was installed.
The car was at a wholesale lot so, no idea of how long it has been driven in this condition.
It seemed to idle a little rough indicative of a miss but had very good power.
I've read about how difficult the injectors are to pull on the OM648.
Will a leaking injector seal throw a code that the dealer can read? I'm willing to pay for this service but would diy the repairs if not too extensive.
Can the head be damaged if it has ran this way for long?
I'm willing to make an offer and gamble if the chances are just seals plus one injector. Not, if the head has to come off or it needs all six injectors.
"Black death" sure sounds terrible and looks like it.But,problem can be solved without any large money issues,atleast here where i am from-Europe (in inependant shops,not at dealerships).There is special tools for dragging out injectors,cleaning carbon builds up and for removing dirt from injector housing inside cyl head.Sometimes hapens that injector gets damaged during removal action but there is no need for replacment-Bosch injectors can be easeally repared (for normal price).Costs for removal and cleaning all six injectors costs (Bosnia,eastern Europe) around € 200.Reparing goes from €50 to € 125 per injector.Job is dirty and health dangerous when you dont use inhalation protection but can be done in one working day when there is no need for injector repair...
So, I shouldn't worry about the head being damaged?
Does the seat always need reaming?
Would it be wise to remove all six and reseal them?
Thanks!
I do this job often in my service.I never had a cyl head issue."Black death" is common thing in benz's cdi engines-all inline diesel models from 200 cdi to 320.Never seen this problem on v engines.Yes,injector seat needs reaming allways because if not doing so seal will go bad in short time period again and all work is ineffective.Also,it is rare thing to find that all injectors are clogged with carbon build up but you can do preventive job by pulling good injectors and change seal-it is not tough job to do...
You have already whipped yourself into a frenzy way before you really know what is wrong------calm down---get a good scan and learn why the CEL is on and then you can continue all your suppositions!!
Thanks you sir for the informative reply.
You're time may be better spent checking your spring perches...
I'm thinking the CEL is from a previous attempted repair. Who knows...
I did noticed it was in need of brake rotors and tires and suspect the PO didn't want to dump any more into it so, it was traded off. Typical...
My wife really wants a W211 CDI and likes this one. I keep telling her to be patient but they are hard to find. I'll make an "as is" offer on this one and see what happens.
Who sells the seat reamer tool? I've found the injector puller but not the reamer.
I'm confused as to what gets reamed (me maybe). Does it just clean the carbon gunk off the injector seat in the head? I've reamed many of 617 PC glow plug holes but the thought of reaming a hole in an aluminum head has me concerned.
Who sells the seat reamer tool? I've found the injector puller but not the reamer.
I'm confused as to what gets reamed (me maybe). Does it just clean the carbon gunk off the injector seat in the head? I've reamed many of 617 PC glow plug holes but the thought of reaming a hole in an aluminum head has me concerned.
There is no need to ream whole injector seat,only the part that lies on bottom of seat below injector's copper seal.Copper seal may or may not come off with injector when pulled off from cyl head so be carefull.Before reaming you must be sure that copper seal is off the head.Also,there is no need to "dig deep" with reamer.When you notice aluminum shine,stop and dont go any further.Job is pretty easy if you have tool but if not it is very hard thing to do...
The seller is holding out for top dollar, did not accept my fair offer. Unfortunate, as he will sell it to some poor unsuspecting individual that will drive it into the dirt while making payments.
Why would you buy a car with a high frequency of repair in unknown condition to spend $$ on it? Why not just buy one that works? You will still have lots to repair.
At least in the US it appears to be an expensive job UNLESS you opt to do it yourself. I was looking for an E320 CDI and researched it - posting the information here for new people looking at this Black Death issue.
Turns out LegitStreetCars has precisely dealt with the repair and explains it all, including which parts to get etc in his YouTube Video http://tiny.cc/E320CDI-black-death
My Turbo Diesel Mercedes Has A Nasty Engine Issue. ...
E320 CDI injector replacement - YouTube LegitStreetCars Dec 2018
LegitStreetCars
30% Off Factory Style Workshop Repair Manuals (for links see the YouTube link above, for some reason they create a problem here) Use Coupon Code EMOALEX30
The real reason my CDI Turbo Diesel Mercedes was and still is the cheapest in the country is because of a horrible engine problem. If left untreated this issue could cause catastrophic damage to my engine and render my car worthless.
Don't buy a diesel car or truck without watching this video and inspecting for Black Death!!
FCP Euro Injector Seal and Bolt kit.
Mercedes Injector Paste -
Check out IPA Tools and their awesome injector seat cleaning kit
CDI Injector slide hammer tool.
Cool car stuff I buy off Amazon
Follow me on Instagram " @ legitstreetcars"
Last edited by Xavier-NYC; Dec 28, 2018 at 04:15 AM.
Reason: Reformatting - bad videos inserting themsleves
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
------calm down---get a good scan and learn why the CEL is on and then you can continue all your suppositions
!!
