View Single Post
      08-14-2009, 07:49 PM   #18
stressdoc
Moderator
 
stressdoc's Avatar
 
Drives: 335 E90 ZSP+
Join Date: Jun 2005
Location: MO

Posts: 9,786
iTrader: (0)

Bottom line: "e-diff" brakes the wheel with less traction. This has been part of the DTC/DSC system for a long time. The current algorithm does not allow for complete freedom of the DTC system. Hold that button down for as long as you like and you are never completely free (shades of Lexus big brother legal section). The older system allowed complete disabling, so yes, in some conditions you can get more one-wheel spin with the old model. But BMW "e-diff" does not involve any changes to the differential. It never changed. The only changes made were in the software controlling the braking in the DTC system. But "e-brake" wasn't a very catchy label to sell sporty BMWs.

BMW "E-diff" is deceptive lingo, plain and simple. Some marketing peanut in AG no doubt read about the real e-diffs in Ferrari and Porsche and figured they could dupe most of the buyers most of the time. Starting with a crew of 135 fanboys that thought they really had something over the 335s.

Funny how such a wonderful thing has not found its way into the M3 -- thank God!
__________________
My not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829
Quaife, BMW Perf & M3 suspension, V5, M-sport, ...
Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
stressdoc is offline   Dominica
0
Reply With Quote