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      07-25-2007, 07:51 PM   #1
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BMW 135i coupe - BMW Internal Product Bulletin 135i

Got this through the email today, just thought Id share it. not sure if anyone else has seen it. Sorry if its a repost It seems to be about a month old though.
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File Type: pdf 135i-IPB.pdf (733.3 KB, 9696 views)
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      07-25-2007, 07:55 PM   #2
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I havent seen that before. I've seen the pics but not a brochure like that. Thanks for the post man!!
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      07-25-2007, 07:57 PM   #3
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anytime
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      07-25-2007, 07:58 PM   #4
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very nice. thanks for posting!
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      07-25-2007, 08:00 PM   #5
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I don't belive we've seen the Canadian press release - thanks!! Going to parse this against the US release to see if there are any major differences.
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      07-25-2007, 08:03 PM   #6
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Very Helpful. Thanks. It's new to me.
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      07-25-2007, 08:11 PM   #7
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128i

Nice file. Has anybody seen any pictures that show the 128i ? It appears as if the same red 135i is shown in every document to date.
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      07-25-2007, 08:41 PM   #8
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Awesome!

It describes the electronic diff lock too!

Electronic rear differential lock
o Functions through rear brake management
o Active when DSC completely switched off


So, it is active when you completely shut off DSC. That could be a problem for those of us who are planning on installing an LSD. The two would be competing against each other...
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      07-25-2007, 09:01 PM   #9
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Quote:
Originally Posted by larryn View Post
Awesome!

It describes the electronic diff lock too!

Electronic rear differential lock
o Functions through rear brake management
o Active when DSC completely switched off


So, it is active when you completely shut off DSC. That could be a problem for those of us who are planning on installing an LSD. The two would be competing against each other...
Electronic dif lock is still just window dressing.

It applies brake to the slipping wheel,
BUT it does not transfer torque to the outboard wheel.
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      07-25-2007, 09:07 PM   #10
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Quote:
Originally Posted by inTgr8r View Post
Electronic dif lock is still just window dressing.

It applies brake to the slipping wheel,
BUT it does not transfer torque to the outboard wheel.
It doesn't kill the torque or let the inside rear spin and squeal like a banshee though, which is better than the current DSC.
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      07-25-2007, 09:21 PM   #11
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Nice but I m desapointed by the 135 specification

- Xenon are not standard ?
- No M design in the interior
- sport seats optionnals ?

I just hope the price will be cheaper than the 328i
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      07-25-2007, 09:37 PM   #12
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Quote:
Originally Posted by larryn View Post
It doesn't kill the torque or let the inside rear spin and squeal like a banshee though, which is better than the current DSC.
Yeah... I hear ya;
Just wish they'd do it right.

I guess Quaife is going to get more business.
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      07-25-2007, 09:45 PM   #13
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Standard auto, meh...

Optional active steering, need to do some research...

Leatherette is a option.... but I need Terra...

Great Post, you're the man..
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      07-25-2007, 10:48 PM   #14
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I like the fact that they refer to the 135i's rear spoiler as a "gurney flap".
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      07-26-2007, 12:15 AM   #15
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Quote:
Originally Posted by larryn View Post
It doesn't kill the torque or let the inside rear spin and squeal like a banshee though, which is better than the current DSC.
Interestingly, I just read in the August issue of L'Automobile Magazine (French car mag that I subscrive to) that a number of companies are working on electronic differential that have the capacity to increase the speed of the wheel with grip in addition to applying the brakes to the wheel that spins. Acura already does that with their SH-AWD which has the capacity to add up to 5% speed to the wheel that grip. Only on acceleration though.
BMW is apparently working on a new diff that can add up to 10% speed to the wheel that grips, both on acceleration and braking. The first BMW that will feature this new diff will be the X6.

Interesting stuff...
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      07-26-2007, 07:07 AM   #16
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Quote:
Originally Posted by inTgr8r View Post
I guess Quaife is going to get more business.
For all current DSC equipped BMWs, adding an aftermarket locking diff has not caused the DSC system any problems.

This new DSC+ that's being described as being in the 135i is active when you completely disable the DSC (holding down the DSC buttong for more than 5 seconds). That means you'll have a mechanical locking diff competing with this new electronic version of a locking diff, with no way to disable either. I'm wondering if this will be a problem.

The mechanical system will be trying to transfer power, while the electronic one is putting brakes to a slipping wheel, which seems like they could easily mess each other up.
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      07-26-2007, 08:08 AM   #17
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Quote:
Originally Posted by larryn View Post
For all current DSC equipped BMWs, adding an aftermarket locking diff has not caused the DSC system any problems.

This new DSC+ that's being described as being in the 135i is active when you completely disable the DSC (holding down the DSC buttong for more than 5 seconds). That means you'll have a mechanical locking diff competing with this new electronic version of a locking diff, with no way to disable either. I'm wondering if this will be a problem.

The mechanical system will be trying to transfer power, while the electronic one is putting brakes to a slipping wheel, which seems like they could easily mess each other up.

Surely the mechanical one will work before the electronic one - thus giving it nothing to do?
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      07-26-2007, 08:22 AM   #18
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Quote:
Originally Posted by CDR_UK View Post
Surely the mechanical one will work before the electronic one - thus giving it nothing to do?
Who knows.. milliseconds difference, I'd wager.
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      07-26-2007, 09:20 AM   #19
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An interesting read... I had to read it more than once to figure out what they are saying... and I think I still don't fully understand it. It does sound promising, but I don't think this is what is on the 135i. :iono:

http://www.worldcarfans.com/2070329....trol-in-detail
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      07-26-2007, 09:40 AM   #20
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Quote:
Originally Posted by CDR_UK View Post
Surely the mechanical one will work before the electronic one - thus giving it nothing to do?
+1
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      07-26-2007, 10:35 AM   #21
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Well one thing I did not know but found out through this is about the horizontal led lights in the rear.. Nice touch.
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      07-26-2007, 12:14 PM   #22
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Quote:
Originally Posted by CDR_UK View Post
Surely the mechanical one will work before the electronic one - thus giving it nothing to do?
The usual time scale for electronics can be considered "instantaneous" compared to that of anything mechanical. So we can safely assume that within micro seconds of wheel spin, the computer will try to apply brake.

Now the last part is still mechanical, so the real question is if the mechanical LSD will transfer the power and stop the wheel spin before the brake starts squeezing the rotor.

Judging by how fast modern ABS system works, I would bet that the brake will be faster than the LSD. But then I don't know the reaction time of typical mechanical LSDs.
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