More info needed on Service Buletin

Can anyone give me more info in SI B12 02 11.
What is the remedy to correct the driveability issues?

Originally Posted by mr_bean

Can anyone give me more info in SI B12 02 11.
What is the remedy to correct the driveability issues?

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Lol love that link Cal !!

Originally Posted by CALWATERBOY

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Give me some credit, Cal. I tried that well before posting. Unfortunately everything that turns up on Google only gives a description of the symptoms. I'm interested in finding the remedy. A full copy of the SI would be helpful.

Originally Posted by mr_bean

Give me some credit, Cal. I tried that well before posting. Unfortunately everything that turns up on Google only gives a description of the symptoms. I'm interested in finding the remedy. A full copy of the SI would be helpful.

OK, go a little deeper - the first result in Google's listing for the link or this from the second page.

Solution is self evident - warm it up once in a while if nothing but short trips, or take a long one. BMW has said that their 3 isn't designed to survive nothing but short trips.

Oddly IMHO, but I see distinct performance improvement when hot. Gotta run awhile for that. Battery known t'lose juice if all <10 mi runs.

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Originally Posted by CALWATERBOY

OK, go a little deeper - the first result in Google's listing for the link or this from the second page.

Solution is self evident - warm it up once in a while if nothing but short trips, or take a long one. BMW has said that their 3 isn't designed to survive nothing but short trips.

Oddly IMHO, but I see distinct performance improvement when hot. Gotta run awhile for that. Battery known t'lose juice if all <10 mi runs.

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I stumbled across that one already. Not trying to be picky here but it really doesn't go into explicit detail as to how to solve the problem. Your assumption is that driving long distances will fix the problem but my intuition tells me that BMW has a different procedure for their technicians to properly fix the issue.

Does anyone have an up to date TIS?

Originally Posted by mr_bean

I stumbled across that one already. Not trying to be picky here but it really doesn't go into explicit detail as to how to solve the problem. Your assumption is that driving long distances will fix the problem but my intuition tells me that BMW has a different procedure for their technicians to properly fix the issue.

Does anyone have an up to date TIS?

Some might consider that....exacting....

Have you had trouble?

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Originally Posted by CALWATERBOY

Some might consider that....exacting....

Have you had trouble?

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Nothing major. There's a slight hesitation and uneven power delivery (mild surging) below 3K rpm. It's more noticeable when the engine is cold. I'm not too worried since it's still under warranty (only 16K on the odo), but I'm curious as to what is the specific cause and how it can be remedied. Taking long drives (45min - 2hrs) hasn't made a difference.