EGR/DPF DELETE - Mercedes-Benz Forum
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post #1 of 14 (permalink) Old 09-07-2017, 07:56 PM Thread Starter
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EGR/DPF DELETE

Hello all,
Just bought a 2012 R350 bluetec, and I'm looking for a complete delete.
I did some googling and the only option I find is JR tuning.

Any one done this ? Recommendations ?

Thank you
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post #2 of 14 (permalink) Old 09-15-2017, 10:27 AM
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I did it in my 2008 R320 CDI. I used JR tuning (based in canada) but I bought my tune from US dealer. JR tuning helped though in answering my questions. I've driven mine for more than 30K miles, no problems. You'll gain at least 2-3 mpgs easily. Plus more power.
There are no bolt on's available when I did mine. You'll make your vehicle more reliable as you're getting rid of possible problems from EGR and DPF (that prompted me to do it when mine failed and stayed on limp mode). Their tune covers the swirl motor problems too. Although I've already done a resistor bypass on mine when it failed.
But doing the tune, you only need to get rid of the DPF can and replace with straight pipe. The swirl motor can stay, the EGR can be left too. But all three are deactivated.
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Last edited by budagen; 09-15-2017 at 11:33 AM.
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post #3 of 14 (permalink) Old 09-17-2017, 12:48 PM Thread Starter
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Quote:
Originally Posted by budagen View Post
I did it in my 2008 R320 CDI. I used JR tuning (based in canada) but I bought my tune from US dealer. JR tuning helped though in answering my questions. I've driven mine for more than 30K miles, no problems. You'll gain at least 2-3 mpgs easily. Plus more power.
There are no bolt on's available when I did mine. You'll make your vehicle more reliable as you're getting rid of possible problems from EGR and DPF (that prompted me to do it when mine failed and stayed on limp mode). Their tune covers the swirl motor problems too. Although I've already done a resistor bypass on mine when it failed.
But doing the tune, you only need to get rid of the DPF can and replace with straight pipe. The swirl motor can stay, the EGR can be left too. But all three are deactivated.

I found a local shop who can do it and he's asking 3K.
The JR tune option with the bolt on pipes will set me $1600, but I have to do the work myself (and I am not mechanically inclined beyond regular maintenance of oil and filter changes).
I'm going to use this vehicle with uber, reliability and fuel savings is my goal... (about 30K miles/year and the car has 100K miles on it already. but it was serviced at the dealership on time since day 0)

I called a US, JR distributor and he also requested I send in my cluster along with the ECU?
How hard is to do the work myself ?
thanks
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post #4 of 14 (permalink) Old 11-15-2017, 06:32 AM
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Hi,

I haven't log in for a long time, sorry about that. If you haven't done it yet, I'd still recommend it. I don't know about 2012's. There was no need for me to send in the cluster, it was just a flash. I bought the tune with a flash loader, that's the only way to do it. Then the only thing mechanical you need to do it is to get the dpf off and zip ties the left over connections. You'll need somebody to well you a missing exhaust pipe then. I've heard other people do it themselves buy gutting the inside of the dpf, but best to the section cutoff and new piece welded in. Other than that, there's nothing else to be done. The tune will take care of the EGR, the swirl motor, and the DPF, and the SCR.

Last year, I addressed the leaking oil in the back (oil cooler seal) it was a big job, so I had a mechanic do it. At same time, I capped off the EGR and and removed the swirl motor. No difference, since the tune already took care of that, but just cleaned out the engine bay.

Yes, with those addressed, the engine can be reliable. I've not had a problem since.

I hope this was still able to help you decide.
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post #5 of 14 (permalink) Old 11-15-2017, 06:34 AM
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By the way, tune plus pipes for $1600 is already a good price. It's also easy enough to do, you just need sturdy jack stands to work safely under the car.
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post #6 of 14 (permalink) Old 09-12-2018, 07:38 AM
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Angry Not Good so far

I purchased the pipe and tune for my 2012 ML350 Bluetec from AArodiguez and have not had it work correctly at all. I don't recommend doing this as I had mine done by an Import garage as I cant weld. Everything was done to the instructions and still I'm between limp mode and sometimes my turbo works but then all of the sudden doesn't. My garage reached out to the tuner and rechecked several items, but still doesn't work. I'm in the middle of them pointing fingers at each other with a broke vehicle and no solution. I've taken it to the Dealership for them to scan and that didn't give any answers either. I can only speak to what I'm dealing with. I'm thinking about going back to replacing all of the emissions system and flash back to stock to get my vehicle back.

Good luck
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post #7 of 14 (permalink) Old 09-14-2018, 09:03 PM
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I'm sorry you're not having luck with your project. I did mine myself, except the welding part. I wish your mechanic and the tuner could sort it out. A few things might be mitigating the problem. When I did mine, my EGR was already clogged and going to limp mode, and I got a block off kit from CB Engineering for that; my swirl motor was also bad, and so I took that off and blocked the intake. However, the tune should have taken cared of that. I wish there's some way I could be of help.
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post #8 of 14 (permalink) Old 11-18-2018, 07:24 AM
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Quote:
Originally Posted by budagen View Post
I did it in my 2008 R320 CDI. I used JR tuning (based in canada) but I bought my tune from US dealer. JR tuning helped though in answering my questions. I've driven mine for more than 30K miles, no problems. You'll gain at least 2-3 mpgs easily. Plus more power.
There are no bolt on's available when I did mine. You'll make your vehicle more reliable as you're getting rid of possible problems from EGR and DPF (that prompted me to do it when mine failed and stayed on limp mode). Their tune covers the swirl motor problems too. Although I've already done a resistor bypass on mine when it failed.
But doing the tune, you only need to get rid of the DPF can and replace with straight pipe. The swirl motor can stay, the EGR can be left too. But all three are deactivated.
Just wondering if physically removing the DPF gave noticable exhaust noise increase?
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post #9 of 14 (permalink) Old 11-18-2018, 08:07 AM
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Greg,

I know it's been a few months since your post, but I assure you the problem is your tune. The first tuner I found caused more problems, fault codes and intermittent limp home modes than I originally had. Then he tried to convince me it was problems with the car. Two tuners later, a fellow from Germany sent me a tune that was perfect right out of the box, my car is amazing. Good luck.
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post #10 of 14 (permalink) Old 11-30-2018, 11:42 AM
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Yes, the car is a bit throatier. Not that you can notice it while driving, but if you are outside and walking around it you definitely can tell. Also, please keep in mind that you will smell a bit more of diesel vapor then before. It's by no means an obnoxious monster driving down the road rolling coal as you pass people.
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