Ok so like many of you I have been told or given the impression that our SHY Cooper S’s are having these assorted problems due to an ECU program fault.
Now from what I hear, not all Cooper S’s (new or older) have this problem??? (Can you see where this is going?)
If it is an ECU fault then ALL S’s should show the same symptoms – i.e. Yo-yoing between 3 and 4 K RPM as the power is applied where it would be most comfortable to drive without the lead shoe on. or Taking a dump as you pull out in front of somebody. (you should be able to in an S - within reason – as long as it doesn’t take a dump) AND BMW would rather spend their time talking about shock absorber oil color options or rear fog lights or phone me with their PR service reports survey than get my engine running as it should. You see they don’t see SHYness as being a “problem” but rather a characteristic of the car (but oh yeah not all of them have these problems)… BOLLOCKS There are a few contradictions here.
I also hear that the car (ECU) will learn over time how to behave??? Maybe my S needs someone else to learn it? Seems kinda ridiculous.
Mine is in the shop tomorrow.
I just had the pulley done and the intake is on its way – EVOtech flash to come. I want to try and clear the SHY issue before I do the ECU so there is no finger pointing.

Any thoughts?


P.S. Don’t get me wrong – rear fogs would be great but I live in S. Fla.

Randy you do gr8 wk… look forwards to our next encounter.

 

I would still go for the latest upgrade and see if it improves......helped with my wife's 2002 S......I also did upgrades, the latest being the 33.1 with my regular Cooper and it also helped with the mileage....1 more mile per gallon......12,000 miles on this car.....

 

I hear you. All this whining about silly rear fog lights (Who's even heard of such a thing?) when the engine doesn't even run properly.

I'm so embarrased. I tell everyone how great my car is and how fun it is to drive and they all want to experience it first hand. I hand them the key, they start up the engine... OK they try again... OK, finally it stays running and they put it in gear and try to pull away (you know what happens next). So they start it again and try to pull away more carefully, the car gets going fine and then WHAM! misfire! lurch! whiplash!

Everyone that's driven my car does this and then looks over at me with exactly the same expression. I give them my expression in return and no words are needed.

 

After going through the 2 upgrades, I can say the last one really does the trick....car is definitely faster ....at 3,000 rpms I am going 73 mph versus 68 mph with 2nd upgrade......also no stumbling on deceleration or stumbling out of first on MC, or with AC on with warm weather..................I also was not delighted when showing people the car with the stumble...... :smile:

 

>>at 3,000 rpms I am going 73 mph versus 68 mph with 2nd upgrade

???????????????
Its not like they change the gear ratio when they reprogram the ECU....

You should have the same mph in the same gear no matter what they do.

Erik

 

I did not have the stumble on my 8/02 MCS when it was running version 32 of the ECU software. Then, my car was upgraded to 33.2 and it now has the stumble big time. I can't say why my car seems to behave differently than Andrew's, but it does. And it sucks. :evil: :evil:

Since I've nothing better to do while waiting for BMW to fix this, I'm experimenting. I've found that turning off the DSC makes a big difference in the stumble. When the car's warm, the stumble can be almost deleted if I turn off DSC. But when it's cold, the stumble's there regardless of what I do. Letting the clutch out verrrrrrryyyy slowly helps...but if I keep that up, I'll burn out my clutch before long. I personally am convinced that the stumble is related to the poor implementation of traction control (and likely DSC -- not ASC -- specifically) in our MCS's if so-equipped. It's the wheel sensors or at least how that data is handled by the DSC program that's causing the problem.

I don't see the availability of rear fogs, non-mushy shocks, and a fully drivable car as being mutually exclusive. BMW needs to fix the damn stumble (that THEIR SOFTWARE "UPGRADE" CAUSED!!! ) and ALSO attend to other customer service issues. I'm glad that they saw fit to listen to customers re. the foglights; but that can't be the end of the line.