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Custom Knife Creations
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Discussion Starter #1
Inside stuff: A hidden feature launches the M3, but faster in Europe.

by Dan Carney





There's a cheat code in the software running the BMW M3's sequential manual gearbox (SMG): Press the right buttons in the right order and the car will launch you from a stop after revving the engine to 5,000 rpm. But don't look for a how-to in the owners' manual—this feature is undocumented, an inside joke of sorts.

To our knowledge, it's also the first automotive "Easter egg," though—with increased reliance on computers—it would seem just a matter of time before they become standard fare, much like the hidden features in PC games and DVD movies. In the M3's case, there's also good reason for it: The SMG transmission is completely electronic, so you can't rev the engine and drop the clutch for tire-smoking acceleration—something the owner of a performance sedan just might want to do occasionally.

But there is a catch. In Europe, where the feature isn't so hush-hush, doing more than 15 launches voids the car's warranty. Federal laws prohibit such stipulations here, so BMW has turned down the wick. U.S.-spec cars are programmed to wind to only 2,500 rpm—and our test car topped off at 1,800. That's why you have to ask your dealer to install the European software. Most will happily oblige.

For lucky drivers of this hot car, here's how: Switch off the stability system and select shift program six. Switch the engine to sport mode. With the hand shifter in drive, hold it in the downshift position and press the gas pedal. The engine will rev to the preprogrammed rpm and hold. Now release the shifter. The car will launch forward violently and the engine's revs will climb quickly, so be prepared to upshift.
 

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Pretty cool but I bet this would fry the Murano's CVT. From what I read in the Road and Track test, the Murano can be brake torqued - I think thats how they got the 7.5s time for 0-60. However, like a conventional automatic, you will toast your tranny if you brake torque on a frequent basis.
 

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Custom Knife Creations
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Discussion Starter #3
yeha. I figured that.. you would burn the belt out quite quickly.. but oh well.. on can still wish.. lol..
 

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Murano Going 140

He may have photoshopped the Picture of the Speedo just like JAAK did for his.
 

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NO-MO-SNOW
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Re: Murano Going 140

pcs15394 said:
He may have photoshopped the Picture of the Speedo just like JAAK did for his.
You got it, it is N2MURANOS's car. It's photoshopped:
 

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the top speed in MO is governed by computer. If one was able to reprogram it 140 could be realistic...........
 

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Re: Murano Going 140

pcs15394 said:
He may have photoshopped the Picture of the Speedo just like JAAK did for his.
It's not photoshopped... It's real, baby! Took me a few tries. Good thing the rev limiter stops the engine from going too far into red line.

Found out something interesting today. Had the Murano in L from a stop up to over 60 mph. Revs were up, but never over and it was very responsive to the throttle. :D

I might do it again in a year or so...:p
 

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NO-MO-SNOW
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Yep...JAAK is right. I took a tach pic too:
 

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JAAK

My bad!!! I thought I had read somewhere that it was photoshopped.
 

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Snow MO said:
Yep...JAAK is right. I took a tach pic too:
Nice resolution... Took me a few tries to get it so you could see the needle moving. :D

I think the first thing someone accused me of photoshopping was the functional SAT. Someone else looked up the channel schedule and saw it was real. Lot of excited Murano owners then!
 

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