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      07-26-2008, 11:46 PM   #1
AMThreeE92
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My E92 M3 got problem: "Dynamic Damping Control Failure"

Hi every gentlemen,

I have visited this forum since last September when I would like to
buy a new car. After reading a lot of the post here, I then decided
to buy an E92 M3 with DCT, EDC and advanced audio.

My car is alpine white and I was happy to get it in early this June.

When I got it, the milage was just about fourty some KM. I liked it
as it gave me totally different experience since my another two cars
are Lexus, GS300 and RX 330. However, after my driving for about 50KM,
ten days after I got my car, the screen shows "dynamic damping control
failure".

I drove it to my dealer and, after diognosis", BMW of Taiwan said the
problem was caused by the mulfunction of two sensors. They fixed the
problem and return it back to me at July 11. Unfortunately, it happened
again yesterday.

Please see the attached picture.

I know most of you are very knowledgable about the BMW's performance
cars and I sincerely hope some experts here like Swamp2 and lucid can
give me some of your opinions about the issue as I am very worry about it:
1. the issue is minor or not?
2. this function failure can cause fatal danger to me if it happens during
the extreme driving situation?

3. the function failure has happend twice in a short period (I drove another
120 KMs after dealer returned it back to me), can it be fixed easily or it is a
complicated problem?

4. Should ask BMW to refund my money or exchange a new one to me?

Any of your suggestions and opinions is highly appreciated.
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      07-27-2008, 12:36 AM   #2
AMThreeE92
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Btw, could anyone tell me if dynamic damping control fails,
what does it cause to driving? When it happened first time,
the EDC also mulfunctioned. Maintenance department of my
car dealer said that the mulfunction of EDC is due to the the
failure of damping control. Thanks first for your response.
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      07-27-2008, 02:13 AM   #3
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I would not worry too much. Sure it sucks that your car is acting up but I would not be concerned about safety. We know that EDC = Sport means that the active control of EDC is completely turned off, making the system just like a regular old shock, albeit a fairly highly damped ("stiff") one. The particular part of the warning that says "driving comfort restricted" sounds to me like when EDC fails in this way it reverts to EDC = Sport hence a bit less comfort.

I don't think we have heard this exact failure reported yet or perhaps folks just did not quote or take a photo of the screen. We have heard of simply loose connectors causing EDC warning notices and those have been fixed easily and simply. Could be a bad shock as well but I doubt anything worse than that.

It would be almost impossible to demand a refund or a new car for this. If you want to keep the car (which you definitely should - at least until break in is complete ), keep it, just tell the dealer to GET IT FIXED properly.

Keep us posted. Cheers.
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      07-27-2008, 03:10 AM   #4
AMThreeE92
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Dear swamp2,

I am so surprised for such quick response from you. Thank you so much.
The issue irritated me as the maintenance department of BMW said
it's a minor problem and could be easily fixed by replacing two sensors but it
happened again within very short time, which still in the break-in period.
Therefore, I am afraid that the problem may happen again and again. I drove
it under 5000 rpm.

Yes, first time when the damping control system failed, the car became very
stiff when driving. You mean this mulfunction will just cause the car become
the most-stiff mode (sport mode) but no other concern, right?

And you said:

"We have heard of simply loose connectors causing EDC warning notices and
those have been fixed easily and simply. Could be a bad shock as well but I
doubt anything worse than that."

Actually, as I remembered, the issue happened both are right after
acceleration (not very drastic due to the break-in concern) in town; the
road is relatively flat and no shock caused during the car driving.

If you could, please give me more your comments. Sorry for bother you again.

Actually, I like this M3 w/MDCT and EDC so much. It costed me about USD
170,000. It's so expensive in Taiwan compared with that in most of other
countries due to import tax issue. I hope it can be solved this
time.
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      07-27-2008, 03:39 AM   #5
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Quote:
Originally Posted by AMThreeE92 View Post
Dear swamp2,

I am so surprised for such quick response from you. Thank you so much.
The issue irritated me as the maintenance department of BMW said
it's a minor problem and could be easily fixed by replacing two sensors but it
happened again within very short time, which still in the break-in period.
Therefore, I am afraid that the problem may happen again and again. I drove
it under 5000 rpm.

Yes, first time when the damping control system failed, the car became very
stiff when driving. You mean this mulfunction will just cause the car become
the most-stiff mode (sport mode) but no other concern, right?

And you said:

"We have heard of simply loose connectors causing EDC warning notices and
those have been fixed easily and simply. Could be a bad shock as well but I
doubt anything worse than that."

Actually, as I remembered, the issue happened both are right after
acceleration (not very drastic due to the break-in concern) in town; the
road is relatively flat and no shock caused during the car driving.

If you could, please give me more your comments. Sorry for bother you again.

Actually, I like this M3 w/MDCT and EDC so much. It costed me about USD
170,000. It's so expensive in Taiwan compared with that in most of other
countries due to import tax issue. I hope it can be solved this
time.
I often stay up late and like to have a quick check of the forum before bed.

Do you have a decent warranty in Taiwan? As long as you do not have to pay each time you visit for a problem with a new car just keep taking it back until it is fixed. Many of us worldwide have EDC and have never has a single problem - so the thing CAN be fixed.

If our service guys said "sensors" I would bet is faulty accelerometers which are located in both front wheel arches and a third one in one of the rear arches. However, that they were replaced and failed again so quickly points to a more serious problem. What it is I have no idea.

Do not rely solely on my advice for your safety. It seems clear to me what is happening (the effect, not the cause) but if YOU feel the car may be unsafe when you get these failure warnings don't drive it. Do tell the dealer that you feel it is a SAFETY issue. If they feel they could be liable they should work harder to get it fixed.

Good luck.
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      07-27-2008, 05:24 AM   #6
AMThreeE92
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Thanks for your advice, swamp2.

In Taiwan, BMW provides 2 years warranty. Since the issue happened last
time, BMW of Taiwan agreed to extend the warranty to 3 years.

Will keep you posted about the result regarding the damping control issue. Thanks.
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      07-29-2008, 09:52 AM   #7
AMThreeE92
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After 50 KM I drove my M3, the screen showed "Dynamic Damping Control
Failure". Next day, the screen further showed another two signals: first, EDC
Mulfunctioned; second, DSC Mulfunctioned, on the way to the service dept.
I can understand why the signal of EDC mulfunction showing up since the
signal of "Dynamic Damping Control Failure" showed first. But I wonder if
there is any relation between Damping system and DSC. If the mulfunction
of DSC is related to EDC due to the complicated computer sytem, then I
suspect any minor issue will cause serious safety issue, right?


Last saturday Dynamic Damping Control Failure happened again, but this time
I asked the local service Dept. of BMW to send a technician today to drive
my car back to the service dept. for repair. Therefore, I have no chance to
check whether EDC and DSC still function or not on the way to the repair
factory.

This afternoon, the manager of service dept. told me thru telephone that
after computer diagnosis, they found there is a wire not well connecting to
the sensors and therefore it resulted in the failure of Damping control system
again. For conservatism, they will check and test my car tomorrow morning.
But I doubt what he said because I think when the issue happened first time,
service dept. should carefully check the whole related hardware system
including sensors and wires. I will ask the service department give me the
these two repair records. I am afraid that there are seriour flaws in the
damping control system. Just my guess. Will keep you posted if there is any
progress. Thanks.
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      07-29-2008, 10:05 AM   #8
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Quote:
Originally Posted by AMThreeE92 View Post
After 50 KM I drove my M3, the screen showed "Dynamic Damping Control
Failure". Next day, the screen further showed another two signals: first, EDC
Mulfunctioned; second, DSC Mulfunctioned, on the way to the service dept.
I can understand why the signal of EDC mulfunction showing up since the
signal of "Dynamic Damping Control Failure" showed first. But I wonder if
there is any relation between Damping system and DSC. If the mulfunction
of DSC is related to EDC due to the complicated computer sytem, then I
suspect any minor issue will cause serious safety issue, right?


Last saturday Dynamic Damping Control Failure happened again, but this time
I asked the local service Dept. of BMW to send a technician today to drive
my car back to the service dept. for repair. Therefore, I have no chance to
check whether EDC and DSC still function or not on the way to the repair
factory.

This afternoon, the manager of service dept. told me thru telephone that
after computer diagnosis, they found there is a wire not well connecting to
the sensors and therefore it resulted in the failure of Damping control system
again. For conservatism, they will check and test my car tomorrow morning.
But I doubt what he said because I think when the issue happened first time,
service dept. should carefully check the whole related hardware system
including sensors and wires. I will ask the service department give me the
these two repair records. I am afraid that there are seriour flaws in the
damping control system. Just my guess. Will keep you posted if there is any
progress. Thanks.
I have no idea if this will make you feel any better, but there are so many wires and computers making our cars work right, so probably is something as simple as a loose wire or failed sensor, but it may take them a while of trial and error till they truly figure out what the issue is. Don't worry, they will find the problem....

keep us posted on how things are going......
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      07-29-2008, 11:55 AM   #9
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Not good!
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      03-22-2010, 12:41 AM   #10
KonigsTiger
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Hmmm, now its me that got this failure light, I drive a 6MT and really felt no difference in the way the car feels. I wonder what it is.
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      03-22-2010, 01:10 AM   #11
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Quote:
Originally Posted by AMThreeE92 View Post
...This afternoon, the manager of service dept. told me thru telephone that
after computer diagnosis, they found there is a wire not well connecting to
the sensors and therefore it resulted in the failure of Damping control system
again...
I believe that if you look back at the early "EDC failure" threads from 2008, most of them were caused by either damaged wires or poor connections to the dampers and sensors.

Once your dealer figures out where the problem is, it will be fine.
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      03-22-2010, 10:36 AM   #12
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Quote:
Originally Posted by JAJ View Post
I believe that if you look back at the early "EDC failure" threads from 2008, most of them were caused by either damaged wires or poor connections to the dampers and sensors.

Once your dealer figures out where the problem is, it will be fine.
Well I´ll take it to the dealership but I sure hope its not one of these thing they can´t figure out and the car sits there for ages!
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      03-22-2010, 10:47 AM   #13
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Does anyone have any further information on this so that I can tell the dealer and have it resolved quickly? Can I continue to drive and push the car regardless?
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      08-04-2011, 03:31 AM   #14
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Following a long motorway drive yesterday I had this error come up when I got home and the EDC was locked in one mode. After leaving it overnight I popped the bonnet and disconnected/re-connected the front shock sensors and when I started the car the error message has gone and the EDC appears to work OK again. Will be interesting to see if this re-occurs.
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      08-04-2011, 02:03 PM   #15
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I had a simliar issue. Check out my thread here: http://www.m3post.com/forums/showthread.php?t=511709
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      08-04-2011, 02:36 PM   #16
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Well did approx 40 miles today and the message popped up again when the engine stopped. After about an hour around town I returned back to the car and on starting no message and no sign of any issue with the EDC. Has been fine for the rest of the day. Mmh, hate these intemittent faults. Will habe to pop into my local dealer and see what they say about it. If I check the control messages in the car it says all OK.
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      08-04-2011, 03:04 PM   #17
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there are couple of m3post members from taiwan got some issues on their m3s.
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      08-05-2011, 02:29 PM   #18
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Out and about today with no errors or problems. Oh well, fingers crossed that remains the case.
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      09-28-2011, 12:25 PM   #19
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Well, after the same error came and went a few more times, sometimes lasting a few days, I booked it into the service department and after a full day diagnostics and overnight stay i've been told it's the Electronic Damping Control Module that is at fault. This will be replaced tomorrow under warranty so hopefully that is the last I see of that error (or any other error come to think of it!)
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      09-28-2011, 12:29 PM   #20
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This is one of the reasons why I opted out of getting the EDC. Too many wires/sensors means complications down the road.

OP-good luck!
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      09-28-2011, 12:35 PM   #21
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To make you will better, I got the same problem way back in 08 after the Euro delivery. They fix the EDC problem and it is error-free since then(knock on wood).
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      09-30-2011, 09:41 AM   #22
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If only it was as simple as that. After the replacement EDC control unit arrived and was fitted it was another 24 hours to 're-program' the car and i've now been told that the auto gearbox won't go into any gear. I mean WTF!!
It's been the sunniest week we've had all damned summer and it's friday which means if it isn't sorted in an hour I'm not going to get it back until next week (if they sort it that is). As you can imagine i'm not exactly a happy bunny anymore.
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