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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > ABC delete 335d USA drivers - how has reliability been after delete? Costs?



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      05-05-2016, 07:48 AM   #23
Twilight1
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Originally Posted by larrysing View Post
Pertinent point in my statement is "most of them are gun owners" LOL. You try to make them spend a coupla three thousand to clean and SLOW DOWN their trucks, and you are going to have some serious protest.

My point is as a Texan, IMHO they will not start limiting diesel emissions on passenger cars any time soon.
So, if you can't roll coal, you might shoot someone ? Yikes!
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      05-05-2016, 08:09 AM   #24
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So, if you can't roll coal, you might shoot someone ? Yikes!
No, not shooting but just using them as leverage in negotiations !!
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      05-05-2016, 11:55 AM   #25
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The diesel smell doesn't bother me I said. Didn't say I can't smell it.
OK, fair enough. We all are different.
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      05-05-2016, 01:01 PM   #26
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I don't like the smell but I mainly notice it in a confined space like a garage.

And then I can be distracted by the lovely turbo whistle.
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      05-05-2016, 01:08 PM   #27
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One question, I would have is I know there are a few who bought a down pipe with a DOC on it from Buzzken, any words on smell with a cat?
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      05-05-2016, 07:42 PM   #28
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I have a factory DOC still in place, but no DPF. I can say that when you first start the car, yes you can smell it like any other diesel. When I come home and the DOC is at operating temperature, the smell is not worse that from a gasser. I am sure that at speed, 80-90% of the smell is gone, but I have not tried following myself One thing I do like about a DOC is that it also converts CO to CO2.
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      05-05-2016, 07:51 PM   #29
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Originally Posted by Yozh View Post
I have a factory DOC still in place, but no DPF. I can say that when you first start the car, yes you can smell it like any other diesel. When I come home and the DOC is at operating temperature, the smell is not worse that from a gasser. I am sure that at speed, 80-90% of the smell is gone, but I have not tried following myself One thing I do like about a DOC is that it also converts CO to CO2.
Pardon my ignorance, but for the sake of other relative newbies like myself, what is DOC? Diesel _______ ___________?
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      05-05-2016, 08:05 PM   #30
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Quote:
Originally Posted by larrysing
Quote:
Originally Posted by Yozh View Post
I have a factory DOC still in place, but no DPF. I can say that when you first start the car, yes you can smell it like any other diesel. When I come home and the DOC is at operating temperature, the smell is not worse that from a gasser. I am sure that at speed, 80-90% of the smell is gone, but I have not tried following myself One thing I do like about a DOC is that it also converts CO to CO2.
Pardon my ignorance, but for the sake of other relative newbies like myself, what is DOC? Diesel _______ ___________?
Diesel Oxidation Catalyst. Pretty sure same thing as SCR (which is what most people refer to on this car)
SCR is Selective Catalytic Reduction.
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      05-05-2016, 09:22 PM   #31
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No, the DOC is within the DPF. A cat cleans hydrocarbons and CO. The SCR converts NOx to Nitrogen and H2O using ammonia. The ammonia is made from exposing urea to 300C.

I'm a little unclear if the cats being offered are diesel specific or just generic high flow cats. I would consider replacing my Ecotune DP with another DP with cat.
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      05-05-2016, 09:36 PM   #32
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Originally Posted by BB_cuda
No, the DOC is within the DPF. A cat cleans hydrocarbons and CO. The SCR converts NOx to Nitrogen and H2O using ammonia. The ammonia is made from exposing urea to 300C.

I'm a little unclear if the cats being offered are diesel specific or just generic high flow cats. I would consider replacing my Ecotune DP with another DP with cat.
Thanks for clarifying.
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      05-06-2016, 12:43 AM   #33
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I find retaining a DOC is a good compromise.

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      05-06-2016, 07:19 AM   #34
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Cuda and Yozh can you place the DOC after the dpipe further down the line of the exhaust somewhere around where the former SCR was?
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      05-06-2016, 02:28 PM   #35
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We had that conversation with DFR and TDI a while back. We came to the conclusion that you needed exhaust gas to be pretty hot (>200C, perhaps 250C if I recall) to react and "light off" the chemical reaction. It would appear the cat should be built into the DP. I know someone that will do it and you do too.
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      05-06-2016, 02:40 PM   #36
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No not THE BANNED one lol
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      05-07-2016, 09:07 PM   #37
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These cats offered by buzz are just regular generic cats from a gasser, aren't they? Just for smell and smoke. They are not a DPF or SCR. Would they clog like a dpf would, with the increased fuel from stage 2.5?
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      05-10-2016, 02:17 PM   #38
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Quote:
Originally Posted by Mrdeezy View Post
These cats offered by buzz are just regular generic cats from a gasser, aren't they? Just for smell and smoke. They are not a DPF or SCR. Would they clog like a dpf would, with the increased fuel from stage 2.5?

I'm guessing your question is aimed at Buzz as I have no knowledge of his craft.
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      07-14-2016, 12:49 PM   #39
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Quote:
Originally Posted by larrysing View Post
Please fill me in. I have two of these, and if I see a good financial savings to performing the delete on BOTH of them, I will try to figure out how to afford it.

Thanks much !!
Hi Larry,
What is you final decision? have you removed the SCR systems from your cars? Thanks.
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      07-14-2016, 02:19 PM   #40
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Hi Larry,
What is you final decision? have you removed the SCR systems from your cars? Thanks.
Not yet. The plan is to do it for mine next year during a trip to BPC.

That is if I can resist the urge to buy a Camaro ZL1. Very interesting car, and the 2017 version is going to be even better than the current version.

Daughter already wants to trade hers, so we're not doing any more mods on that one. She'll get something new probably in a few months.
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      05-12-2019, 12:47 PM   #41
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ABC Delete questions

Hey guys, Just bought a 2011 335D. And was wondering if the ABC delete with a tune would pass emissions (I live in portland OR) and would make my car more reliable. I am currently throwing the P207F code. I tried cleaning out the DEF tanks with water to see if it was a level sensor in the tank that was covered with urea crystals (because the guy I bought the car from said that was the problem). But it seems that wasn't it. So I assume it must be the SCR, so instead of taking it in and paying for something that's just going in break again, I would much rather go with a ABC delete and a tune. I heard JR Auto makes good tunes. But like i said before I have no idea if their tune would pass emissions testing. If you guys have any input on parts for the ABC delete and any other recommendations I would greatly appreciate it.
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      05-13-2019, 05:09 PM   #42
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Quote:
Originally Posted by sparkylocal48 View Post
Hey guys, Just bought a 2011 335D. And was wondering if the ABC delete with a tune would pass emissions (I live in portland OR) and would make my car more reliable. I am currently throwing the P207F code. I tried cleaning out the DEF tanks with water to see if it was a level sensor in the tank that was covered with urea crystals (because the guy I bought the car from said that was the problem). But it seems that wasn't it. So I assume it must be the SCR, so instead of taking it in and paying for something that's just going in break again, I would much rather go with a ABC delete and a tune. I heard JR Auto makes good tunes. But like i said before I have no idea if their tune would pass emissions testing. If you guys have any input on parts for the ABC delete and any other recommendations I would greatly appreciate it.
The car will not pass emissions if you do the ABC delete. You're best off finding someone to do it(if you know what I mean...).
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      06-18-2019, 08:29 PM   #43
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Originally Posted by e90Noobie View Post
The car will not pass emissions if you do the ABC delete. You're best off finding someone to do it(if you know what I mean...).
Actually, Portland, Oregon emission is obd2 cel only. So as long as you get it tuned it will pass.

I have a 2011 335d and live in Portland, OR as well and I am obviously in the same pool since these cars all get strangled by the scr.

I'm currently getting fault codes p20ee, p2062, p2063 and p2064. All to do with the scr metering valve.

Car had the def tanks replaced under warranty.

At almost 140k miles that warranty is bye bye; however, BMWNA does unlimited warranty for NoX sensors but since we are talking about deletes then that is pretty irrelevant unless you want to keep the diesel "clean" lol.
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      06-19-2019, 10:09 AM   #44
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Coming up on 3 years/~20k miles of trouble-free driving on the JR 2.x tune. Car's been averaging 35mpg in mixed driving and consistently ran mid 13s on street tires fighting traction control 200' off the line at the High Plains Diesel Shootout last month. I just hold my breath every year when the registration renewal shows up, hoping it still says "Emissions Test Not Required."
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