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      06-09-2016, 01:56 PM   #1
JoeM3SSII
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help: fellow m3er's can you cross test your m3 on this ?

I have an odd issue with my zcp m3. After 2.5 years of ownership the three edc modes feel the same (stiff) and both servo modes also feel the same (stiff) with no perceptible change when switching modes. But dealer found no error codes and another zcp m3 at the dealer felt exactly like mine (no difference felt). The foreman testdrove both our cars and since both feel the same he thought it is ok but i know as the original owner of my car this is not working, as i remember how distinct the difference was and should be.

edit : if you wonder if your car has this problem do not set idrive to switch power mode and edc together, try switching edc alone. This should be obvious though. Same comment about servo.

Searching online I found 2 similar cases in e60 m5s that was caused by the wires loom that had worn against subframe causing shorts (no error codes or malfunction given !).

http://www.m5board.com/vbulletin/e34...c-problem.html

Last edited by JoeM3SSII; 06-18-2016 at 09:10 AM.
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      06-09-2016, 04:44 PM   #2
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      06-09-2016, 06:10 PM   #3
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Interesting. Lately, I feel no matter the EDC mode mine feels soft not stiff.
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      06-09-2016, 06:27 PM   #4
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Mine is very noticeable between all 3 modes.
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      06-09-2016, 06:34 PM   #5
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still noticeable on my 08.
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      06-09-2016, 07:08 PM   #6
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Bought my 08 used. I was wondering about the same thing as mine doesn't feel any significant difference between the 3 modes. I was thinking maybe it will be much more noticeable on the track/extremely spirited driving. Never questioned it since i made the purchase because never threw any codes/errors. Plus, i always leave it in comfort anyways.

M Power mode works i know (because the heightened throttle response/sensitivity is quite noticeable.)

Hope you find out whether or not it is actually working =( Cheers!
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      06-09-2016, 08:07 PM   #7
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Still noticeable on my '11... no complaints here.
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      06-09-2016, 08:23 PM   #8
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Quote:
Originally Posted by kaede View Post
Bought my 08 used. I was wondering about the same thing as mine doesn't feel any significant difference between the 3 modes. I was thinking maybe it will be much more noticeable on the track/extremely spirited driving. Never questioned it since i made the purchase because never threw any codes/errors. Plus, i always leave it in comfort anyways.

M Power mode works i know (because the heightened throttle response/sensitivity is quite noticeable.)

Hope you find out whether or not it is actually working =( Cheers!
Yes for those who bought used they might have been in sport the whole time never knowing. I use sport edc 80% of times but there are times when comfort is a welcome option. The difference between modes should be clearly felt without having to go on a track, all those people who don't realize it probably have this issue.
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      06-09-2016, 08:46 PM   #9
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On uneven roads I notice a big difference between modes, barely noticeable on smooth even surfaces. Find a road with a speed bump and hit that puppy in the different modes, that's a good test.
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      06-09-2016, 09:21 PM   #10
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Quote:
Originally Posted by Denk View Post
On uneven roads I notice a big difference between modes, barely noticeable on smooth even surfaces. Find a road with a speed bump and hit that puppy in the different modes, that's a good test.
then my servo mode also feels unchanged in either servo mode. And that used to make an immediate difference of feel when car was in the first year.
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      06-09-2016, 10:00 PM   #11
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Still have a difference in my 08
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      06-09-2016, 10:12 PM   #12
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Just saying you feel a difference is not helping. people who want to believe they feel something will say the same. Give a more qualitative descriptive answer.
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      06-09-2016, 11:48 PM   #13
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drive over a rough road and toggle between settings (i.e., M button on/off)……you should feel a difference - I definitely do ('13 e92)
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      06-10-2016, 09:54 AM   #14
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Very noticeable. 08 e92
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      06-10-2016, 09:59 AM   #15
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Best way to test edc is with heavy compression. While i don't recommend going over a huge pothole, driving over traintracks or something like that in both modes should allow you to feel a difference. If you don't feel a difference there, its most likely not working.
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      06-10-2016, 12:17 PM   #16
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Quote:
Originally Posted by Jack14 View Post
Best way to test edc is with heavy compression. While i don't recommend going over a huge pothole, driving over traintracks or something like that in both modes should allow you to feel a difference. If you don't feel a difference there, its most likely not working.
I know it is not working, i am the original owner and had it working for over a year, just stopped playing with it until much later i found it's not working anymore. My car is at the dealer but they found no error codes and were we left it they were not inclined to do something about it. i don't know what to do.
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      06-10-2016, 12:37 PM   #17
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If the car is stiff or at least consistently stiff in each mode, my guess is either the shocks are blown or the EDC module is faulty where it's stuck in one mode. As far as age and what not, my car is a 2011 with ZCP and 59k miles. I swapped to Ohlins coils this past April with 58k miles on the clock and the car had no problem switching between modes as the compression / rebound was noticeably. Same with the servo as it's still functioning at 59k.
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      06-10-2016, 02:22 PM   #18
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Quote:
Originally Posted by Amirsm3 View Post
If the car is stiff or at least consistently stiff in each mode, my guess is either the shocks are blown or the EDC module is faulty where it's stuck in one mode. As far as age and what not, my car is a 2011 with ZCP and 59k miles. I swapped to Ohlins coils this past April with 58k miles on the clock and the car had no problem switching between modes as the compression / rebound was noticeably. Same with the servo as it's still functioning at 59k.
It's good to see your EDC and servo system are still working strong at 58k, mine is dead in the water < 20 kmiles with the aggravation of no error codes.
I found m5 cases.

Last edited by JoeM3SSII; 06-18-2016 at 09:11 AM.
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      06-10-2016, 02:59 PM   #19
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Wow, your brand new bought, 1 owner, non-civic zcp m3 is having issues? That's impossible.
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      06-10-2016, 03:06 PM   #20
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Quote:
Originally Posted by JoeM3SSII View Post
It's good to see your EDC and servo system are still working strong at 58k, mine is dead in the water < 20 kmiles with the aggravation of no error codes.
I found m5 cases. But right now, my main problem is the dealer trying to say it's working because no error code. Another local M3 round the block testdrive by the foreman should invalidate that belief. But it seems M3 are hard to come by in NC.
Any chance you could sit in with them while they test drive the car?
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      06-10-2016, 03:21 PM   #21
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Quote:
Originally Posted by Amirsm3 View Post
Any chance you could sit in with them while they test drive the car?
Yes i went on a round the block drive with the foreman driving the car, he cycled through edc modes back and forth many times wanting to feel a difference, there was none whatsoever, same for servo, in doubt after at least half a dozen tries he pretended to feel something. I objected. Finding no error codes, he believes that rather than actual testdrive. He is not an M3 owner. A working M3 would immediately prove to him he is wrong.

Last edited by JoeM3SSII; 06-10-2016 at 03:32 PM.
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      06-10-2016, 04:09 PM   #22
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got an update. The foreman is now in communication with bmw engineers about it and they're considering upgrading softwares through an IRAP session (through internet). So at least they have recognized there is an issue, according to the Service GM who talked with me. Car is electronically connected to their electronic bench. Don't know more for now.
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