EGR valve Emulator Box to MERCEDES - PeachParts Mercedes-Benz Forum

Bigdaddybenz · #1 04-02-2016, 12:06 PM

EGR valve Emulator Box to MERCEDES C/ E/ S/ ML / 220 CDI /270 CDI/320 CDI/ 300TD...... Found this video pretty interesting...... watch the difference in the acceleration towards the end of the video

http://www.youtube.com/watch?v=aNZuSPiLgdQ

ROLLGUY · #2 07-08-2017, 11:21 AM

Quote:

Originally Posted by Bigdaddybenz

EGR valve Emulator Box to MERCEDES C/ E/ S/ ML / 220 CDI /270 CDI/320 CDI/ 300TD...... Found this video pretty interesting...... watch the difference in the acceleration towards the end of the video

http://www.youtube.com/watch?v=aNZuSPiLgdQ

Did you purchase and install this mod?

Mxfrank · #3 07-08-2017, 12:22 PM

I think it's total BS. In stock trim, EGR is defeated in full throttle acceleration. As a 'performance mod', EGR defeat is a non-starter. Whatever the cause of his initial problem, it's unclear what was really done here.

ROLLGUY · #4 07-08-2017, 01:52 PM

Quote:

Originally Posted by Mxfrank

I think it's total BS. In stock trim, EGR is defeated in full throttle acceleration. As a 'performance mod', EGR defeat is a non-starter. Whatever the cause of his initial problem, it's unclear what was really done here.

Others would disagree. CDI3 EGR bypass mod | Mercedes-Benz Owners' Forums

Mxfrank · #5 07-08-2017, 03:08 PM

Quote:

Originally Posted by ROLLGUY

Others would disagree. CDI3 EGR bypass mod | Mercedes-Benz Owners' Forums

I really could care less about another group's grope, and I'm certainly not going to read 45 pages of cr_p. Do all CDI's make the James Bond smoke screen? Sort of hard to believe that any of them could be certified in CA like that. I've never owned one, but all of the ones I see puttering around here are in clear air.

EGR is disabled at WOT (or full-fueling on a diesel), so unless the valve is broken it can't cause an acceleration problem. True on all cars, old or new. So what was the original problem with the car? It sounds like the benefit comes from disabling limp-home mode, but that doesn't explain why it's limping.

Murkybenz · #6 07-08-2017, 04:52 PM

They have just copied Karteks egr delete which costs a couple of dollars in your country and are charging $126 for it !!!

ROLLGUY · #7 07-08-2017, 06:33 PM

Quote:

Originally Posted by Murkybenz

They have just copied Karteks egr delete which costs a couple of dollars in your country and are charging $126 for it !!!

Karteks EGR delete is for the OM606, not the CDI. You are talking about apples, I am talking about oranges. The guys in the UK have the schematic on the thread, and offer a lot of help there as well (other users and their experiences).

ROLLGUY · #8 07-08-2017, 06:41 PM

Quote:

Originally Posted by Mxfrank

I really could care less about another group's grope, and I'm certainly not going to read 45 pages of cr_p. Do all CDI's make the James Bond smoke screen? Sort of hard to believe that any of them could be certified in CA like that. I've never owned one, but all of the ones I see puttering around here are in clear air.

EGR is disabled at WOT (or full-fueling on a diesel), so unless the valve is broken it can't cause an acceleration problem. True on all cars, old or new. So what was the original problem with the car? It sounds like the benefit comes from disabling limp-home mode, but that doesn't explain why it's limping.

Mine definitely has the "James Bond smoke screen". I am certain that the EGR is bad on my car, so this mod will save me a bunch of $ (well below the cost of a new EGR), and increase my fuel mileage (many others have had increase MPG). I am only getting on the average 26 MPG combined (several long highway drives) on the last three tanks. That is horrible for these cars. I should be getting a minimum of 27, and over 30 combined.

MB_FanAddict · #9 07-09-2017, 04:17 PM

Quote:

Originally Posted by ROLLGUY

Mine definitely has the "James Bond smoke screen". I am certain that the EGR is bad on my car, so this mod will save me a bunch of $ (well below the cost of a new EGR), and increase my fuel mileage (many others have had increase MPG). I am only getting on the average 26 MPG combined (several long highway drives) on the last three tanks. That is horrible for these cars. I should be getting a minimum of 27, and over 30 combined.

How do you know your EGR is bad? Have you removed it to check it's operation or to see if it's dirty or seized (would likely cause a CEL). Have you investigated to find out if the EGR was ever replaced and if the ECM was reflashed?

I have a fully functioning emissions system on my car and it doesn't lay smoke screens or lack power and averages around 30 MPG in mixed rural driving.

BTW, what are your engine temps like? Your engine should reach and maintain 85C-90C after a few miles of driving (in the summer).

If your EGR's already been replaced (and you don't and any other issues, i.e. boost leaks, intake flaps (check if the linkage is attached) ect.), you should be able to resolve you power/smoke/mpg issues by replacing a few sensors. Yes, it's going to cost some $$$ (probably less than you think), but that's what happens when you have a 100Kmi+ modern electronically controlled diesel. Like gasoline engines, at a certain point modern diesels benefit from having various (MAF/O2) sensors replaced for optimal operation (power/mpg ect.).

Also, the revised EPA mileage ratings are 23/33/27 (vs. the original 27city/37hwy) and this coupled with the MPG display being around 10% optimistic, has led people to believe the cars are getting much better milage than they actually are. Still, I agree you should be averaging much more then 26 mpg.

chronometers · #10 07-11-2017, 10:54 AM

The EGR valves do seem to develop problems on the 2005 and 6 e320 CDIs.

The early '05s seem to have had more issues.

Anyone use this emulator to bypass the EGR? Any downside to bypassing?:

https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5337980310&mpre=http%3A%2F%2Fwww.ebay.com%2Fitm%2FMercedes-EGR-valve-emulator-C-E-S-ML-220-CDI-270CDI-320CDI-CDI3-%2F263067706614

chronometers · #11 07-11-2017, 01:40 PM

Quote:

Originally Posted by ROLLGUY

Mine definitely has the "James Bond smoke screen". I am certain that the EGR is bad on my car, so this mod will save me a bunch of $ (well below the cost of a new EGR), and increase my fuel mileage (many others have had increase MPG). I am only getting on the average 26 MPG combined (several long highway drives) on the last three tanks. That is horrible for these cars. I should be getting a minimum of 27, and over 30 combined.

I was not getting smoke when my CDI's EGR was sticking. The vehicle would go into limp mode and not throw any codes. I cleaned out the EGR valve and the problem went away. I'm sure it will reappear after awhile once the valve gets clogged.

chronometers · #12 07-14-2017, 04:26 PM

Quote:

Originally Posted by chronometers

The EGR valves do seem to develop problems on the 2005 and 6 e320 CDIs.

The early '05s seem to have had more issues.

Anyone use this emulator to bypass the EGR? Any downside to bypassing?:

https://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5337980310&mpre=http%3A%2F%2Fwww.ebay.com%2Fitm%2FMercedes-EGR-valve-emulator-C-E-S-ML-220-CDI-270CDI-320CDI-CDI3-%2F263067706614

Anyone install one or know someone who has? I'm just trying to make sure there are minimal downsides to this on a CDI.