E-Class (W211) 2003-2009

W211 E320W Straight Engine Swap?

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Old Jan 11, 2016 | 06:46 PM
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2004 E320W
W211 E320W Straight Engine Swap?

Hi everyone,

I've got a misfire that has me stumped. Being not very smart and too cheap to get the codes properly read at the dealership, I decided to simply throw parts and various repairs at it over the last year (valve cover gaskets, EGR valve and tube, MAF, alternator, both batteries, coils, plugs, wires, tons of Seafoam, new injector, the list goes on) until it was fixed. It hasn't gotten better. Correction - it got better for a couple of days after the valve cover gaskets, plugs and wires this summer. CEL went off for a couple of days. But it came back. And has gotten progressively worse.

Well, I'm now really concerned. Like, oh crap is it a head gasket, valve guide, bent valve, etc concerned. Car runs like crap. Misfire is very apparent. Shaky and not much power. Occasional surging. CEL is stationary and not flashing. Codes are EGR and P0306. And have been, almost no matter what I change out.

I know engine swaps have been discussed at length here in the Forum. But oddly enough, I haven't come across any for a straight LKQ swap, most of what I have seen is people asking if they can put a 5.5 in place of the 3.2, etc.

It's going to the dealer for some in depth diagnostics this week, along with why I get a strong gas smell when I fill up. If it comes back bad news, is a straight swap doable? I'd rather buy a low mileage engine than start rebuilding - from a time and resource perspective.

Any comments or butt kickings appreciated. Yes, in hindsight I should have gone to the dealer first, but 2015 was a very difficult year. And you can get a buttload o' Beck Arnley parts for what the dealer charges for diagnostics.

Thanks all!!

Nathan
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Old Jan 11, 2016 | 09:41 PM
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I don't think you will like yourself when you replace the engine just becouse $76 sensor is malfunctioning.
Get the car scanned period.
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Old Jan 11, 2016 | 09:46 PM
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I hear ya!

I hear ya...finally getting it scanned. I'm expecting the worst but hoping for the best. I was just wondering if a swap was even a possibility.
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Old Jan 11, 2016 | 09:55 PM
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1922 Ford Model T / no OBD
In most of developed countries swapping the engine and married computers will cost you more than the value of 11 years old car.
Good news is that 320 engines seem to be bulletproof with 400k miles expectancy.
So I hope for you it really is a stupid sensor.
Good luck.
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Old Jan 11, 2016 | 10:34 PM
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Thanks

Boy, I hope so too. Have done engine swaps before, but back in the era of L-Jetronic injection, not on something computerized. I guess the computers make this much more difficult than simply switching engines and harnesses. Seems rather a shame that we can't recycle engines on these. Shoulda kept my '84 and '86.
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Old Jan 11, 2016 | 10:38 PM
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I don't think taking computer from donor car to install it with the engine is such a big deal, but with cost of scanners and learning edge this simply scare people just like first-time smart-phones.
I bet our sons will program new engine to cars blindfolded.
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Old Jan 12, 2016 | 07:09 PM
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Originally Posted by Plutoe


Well here we go again more new year gibberish from the dating forum crew---anyone who is famuliar with MB ECU's knows that because of the MB DAS system ECU's can not be swapped without first virginizing the doner ECU and then flashing the donor ECU with the correct VIN related software---that is not a simple process for a freshman.

Be very carful with this gent he is a known spammer and will blurt out anything to get increased post count or impress the less learned!!

Blindfolded----what BS!!
I like how every time one of us calmly states how ignorant he sounds, he never replies. However, to me it seems as though OP may have a bad ME, but who knows-typical benz owner-too cheap to pay for some legit diagnostics. To each their own, however i sure hope you took it to a dealer.
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Old Jan 12, 2016 | 07:40 PM
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This is the last place Plutoe was not ban yet for posing and personal bashing.
He doesn't know much about MB what was proved hundreds of times, but amazingly he keeps finding friends like him.
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Old Jan 12, 2016 | 09:19 PM
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I hear ya! Again!

It'll be Friday for the scan. I'll let y'all know the prognosis.
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Old Jan 12, 2016 | 11:23 PM
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Please note!!

Lots of cognitive dissonance going on here. Sorely tempted to ask what a "bad ME" is (racked my small brain, can't think of what that stands for), so I can get the part and DIY this weekend.

No! Bad dog! We're getting it scanned properly.

That's gotta be worth three or two (really slow) claps.

EDIT: ahh, I guess you mean "DME". Yeah, it would make sense. We'll see.

Last edited by naterator; Jan 12, 2016 at 11:35 PM. Reason: update
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Old Jan 13, 2016 | 08:07 AM
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Originally Posted by naterator
Lots of cognitive dissonance going on here. Sorely tempted to ask what a "bad ME" is (racked my small brain, can't think of what that stands for), so I can get the part and DIY this weekend.

No! Bad dog! We're getting it scanned properly.

That's gotta be worth three or two (really slow) claps.

EDIT: ahh, I guess you mean "DME". Yeah, it would make sense. We'll see.
Your engine computer-Motor Electronics
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Old Jan 13, 2016 | 11:04 AM
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Agreed

That would make sense...there ain't much mechanical left to fix! Darn computers.
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Old Jan 19, 2016 | 11:28 AM
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Diagnosis...

Good news. It was something stupid. Dealer says its a split PCV and crankcase breather hose causing the misfire and CEL. I get it about that causing rough idle and CEL, but don't know how that might cause a misfire...?? Any ideas??
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Old Jan 19, 2016 | 12:30 PM
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1922 Ford Model T / no OBD
codes?
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Old Jan 20, 2016 | 08:57 AM
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Buy a scanner, read the codes, post the codes and someone may offer assistance and guidance. With all the parts you replaced it could be anything...
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Old Jan 20, 2016 | 11:59 AM
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It's a good thing it was just something small because the 112/113 (those year v6 and v8) engines really are bulletproof and should last a long time but to answer your original question for your knowledge which no one seemed to be able to do, you can swap another v6 into your car with no issues and not need any different ME. If you were attempting to put an engine in that was not originally designed to be in your specific vehicle you're in a whole different ballgame. Glad it worked out for you.
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Old Jan 22, 2016 | 12:55 AM
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Thanks!

Thanks VERY much! Exactly what I was hoping to hear. Still don't know what code(s) were pulled...dealer has had the car for a week replacing the fuel tank under the recall. Figured they'd do it while it was in.

These cars are so sophisticated. And pretty, especially the wagon. Probably going to spring for a STAR diag system in the near future.
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Old Jan 22, 2016 | 04:38 PM
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Why have they had the car for a week? I get those out in a day.
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Old Jan 22, 2016 | 05:31 PM
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No idea. I'm a little pissed about it. They started the repair without my authorization eight days ago, since it's free, they apparently didn't need my authorization to begin. Was supposed to have taken a day or two. But then they had to order some parts or something? And no loan car offered. Family logistics has been a pain in the rear because of this. This is the same dealership that WAY overfilled the oil, then sneered down at me explaining that the MFD warning about the oil level was because "you are aware that synthetics expand at temperature, are you not, sir?". Unfortunately they have a near lock on the market around here. Totally snotty and condescending if you aren't rolling up in a late model Benz. Part of the reason I want my own SDS.

EDIT: Just got an email saying the car will be ready by 6:30 tonight, after "for sure" it was going to be ready yesterday, and again this morning. Also, the SM will not give me the engine codes via email.

Question for the group - is it rude to reply "I don't believe you"? Well...maybe, but it sure would feel good!

Last edited by naterator; Jan 22, 2016 at 05:54 PM. Reason: update
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Old Jan 22, 2016 | 05:45 PM
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Generally if you take a vehicle in that is under warranty, permission won't be asked because you're taking it there and obviously would want it fixed and it's no cost to you. On the older 211s the problem is gas tanks being acquired and if they are going to take some time to arrive an interim repair can be performed to get the car road worthy til the gas tank arrives. Sounds like a horrible dealer especially giving some bull***** about synthetic fluid expanding? If you set the oil right level you shouldn't have a high oil light.
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Old Jan 22, 2016 | 06:12 PM
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LOL, one would think, right?? Seems pretty basic to me.
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Old Jan 22, 2016 | 06:58 PM
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I had car at dealer 4 days for wheel alignment.
Something is badly wrong turning with education and job ethics in this country as SA did not even bother to keep me informed about delays.
Now "I don't believe you"
can be translated several ways.
How about "I prefer to check everything myself" ?
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Old Jan 22, 2016 | 07:10 PM
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Four days for an alignment? Wow...I'll stop complaining. Well, probably not, but the sentiment was there briefly. 😄
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Old Jan 22, 2016 | 08:53 PM
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Thanks for the replies. Appreciate this forum.

Last edited by naterator; Jan 23, 2016 at 08:56 PM. Reason: update
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Old Jan 30, 2016 | 11:57 AM
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LOL

Finally able to pick the car up. They still didn't give me the codes. Guess I'll replace the cracked breather hose and how for the best. If that doesn't do it, then I know a great shade tree mechanic that will have SDS soon - this guy. 😊
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