bigbadbull

The Fog is finally clearing for all the N54 owners ( at least with march 08 or earlier builds) over the " non existent" lag from the newer DMS software (29.2+) .

Read the press release.
http://www.autoblog.com/2008/11/18/bmw-fin...pdate-software/

We all need to thank the E90post.com turbo users for Finally getting the BMW CCA to investigate , and "Leverage" BMW with a threat to release all the info and complaints about the software in January's Roundel. That seemed to do the trick.

Not every one will be happy , since it only addresses the 08's up to March build ( new ECU version rev81 starts here), and some people still want the Waste gate rattle fixed AND the original lag free turbos...

At least it is a first step in the right direction.

calpalmer

I bought my 550i based in part (small part, really) on my test drives of 535i and noted slight turbo lag under certain conditions. I reported my experiences here which resulted in severe ridicule etc. by owners. Ho hum.
Cal

Gene

BMW North America Statement:

"In an effort to address specific noise concerns, BMW updated the turbocharged engine software on 335i/xi and 535i/xi models built from June 2006 through March 2008. The updated software causes a small amount of increased "turbocharger lag" under certain circumstances and, while not substantial, the lag may be perceptible to the most sensitive BMW drivers. X6, 135i, and 3 Series/5 Series vehicles from March 2008 production onward are not affected. Release of the new software to restore the original turbocharger response is planned for January 2009, and it will be available for vehicles produced from September 2007 through March 2008 when they are brought to an authorized BMW center for a repair which requires a programming update. Clients with vehicles produced from June 2006 through September 2007 may request installation of the January 2009 software update. Clients who get this update should understand that there is a possibility of slightly increased engine noise levels under certain circumstances."



I will be bringing in my e60 for service around that time. Hope I can get the update then....

"for a repair that requires a programming update"...so we would have to find a reason other than the turbo lag to get this update?


And Cal, thanx for your input and support

calpalmer

And hey geneatals, who wouldn't like their e60 to be a little louder?! I know I would!

whistle

Cal

Gene

noted

I tried the charcoal filter route, but the boys in germany already did that for us

BMW535

My 535i is build March 2008. Do I need to get the update or not. What you guys think?

Fugs

I have an 03/08 build as well. I'm guessing it would have to do with whether or not you have MSD 80, or 81. I know there are 03/08 builds out there with both versions. I have MSD 81 so I believe I'd be excluded, but I'm not sure.

bigbadbull

That is correct, And the only way to tell on an E60 is to hook it up the the shop computer, unlike the E90's secret menu. The E60 's secret menu does not tell which one you have. March 08 for all the N54 motors is a crap shoot. There are like 400 or so 135, a ton of 335's and the 535's I don't think there were any x6's by that time.

John Photography

good news, i'm 12/07 build!

Fugs

Don't know how this will affect you w/a DINAN remap as the remap works off of an earlier version? (If I understand that right) If you get the update and re-flash, would revert back to the version that DINAN uses?

This is just a total guess and I'm actually curious if anyone knows how that works?