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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M Series > E90/E92/E93 M3 (2008 - 2014)

E90/E92/E93 M3 (2008 - 2014)
4th generation E90 M3 sedan, E92 M3 coupe and E93 M3 convertible. The last of the naturally aspirated M3s, powered by a 4.0 liter V8 making 414hp and 295 lb-ft of torque.

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  #26  
Old 05-05-2012, 09:47 AM
captbilly captbilly is offline
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Join Date: May 2012
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Mein Auto: e90 M3
DCT 2011 M3 auto start almost never shuts off engine

I have turned on the autostart feature but I have tried it a couple of times. It seems that between the hot California weather and the DCT being in manual mode most of the time, the autostart engine shutoff conditions are almost never met. I am not sure, but it seems as if the auto shutoff feature won't shutoff the engine if I am in manual shifting mode. It could be the mode the tranny is in (level 3 most of the time, level 5 in M mode) but I think the tranny needs to be in automatic to get a shutdown (and it needs to be reasonably cool out, but not too cold).

I spent a bunch of time in Europe this past summer and every car I rented had autostart. It can be disconcerting at first but you do get used to it. In Paris I had to turn the autostart off because the few tenths of a second it took to restart was way too long to keep up with the impatient Parisians.
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  #27  
Old 02-10-2013, 03:29 AM
Tboss55 Tboss55 is offline
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Mein Auto: BMW 1series
Quote:
Originally Posted by Jamze132 View Post
The system isn't operable unless the engine has reached operating temperature and it's above 37f I believe. I might be off base here...
Bmw all telling you guys **** about car need long distant driving . When I buy my bm it was givin me the same problem . I bring back the car them change the stop start mechanism car work like a bitch after a mins of driving .
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  #28  
Old 02-10-2013, 05:37 AM
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Dave 330i Dave 330i is offline
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Let me see if I got this right. Long time ago, we were under the assumption that it is the start and the restart the engine that cause the most engine wear, and that we should keep it running if the car will move shortly, ie, stopping at an intersection. Now, BMW and other manufacturers are saying it is cost effective, ie, wear and tear on the engine vs less consumption of fuel? I know my issue seem to be hijacking the thread, but I couldn't resist in bringing up this crazy idea. If given a choice, I would not want my car to have this feature even though, I think, one can bypass this feature. If it is electrical feature, it will cause consternation in time. Edit: The suspected automatic features in new automobiles are keeping me from buying a new car.
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Last edited by Dave 330i; 02-10-2013 at 05:44 AM.
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  #29  
Old 02-11-2013, 12:13 PM
captbilly captbilly is offline
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Location: America
 
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Mein Auto: e90 M3
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Originally Posted by Dave 330i View Post
Let me see if I got this right. Long time ago, we were under the assumption that it is the start and the restart the engine that cause the most engine wear, and that we should keep it running if the car will move shortly, ie, stopping at an intersection. Now, BMW and other manufacturers are saying it is cost effective, ie, wear and tear on the engine vs less consumption of fuel? I know my issue seem to be hijacking the thread, but I couldn't resist in bringing up this crazy idea. If given a choice, I would not want my car to have this feature even though, I think, one can bypass this feature. If it is electrical feature, it will cause consternation in time. Edit: The suspected automatic features in new automobiles are keeping me from buying a new car.
Remember that on the M3 the autostart feature is off by default (you have to push a button to turn the feature on) so you don't have to use it if you don't want to. And, as I said in my original post, it seems that even if it is on the autostart feature rarely actually turns the engine off.
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