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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Fri, Aug-06-2010, 07:23:01 AM   #31
Smalec
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I hate this downshift. BUT, when you get it right, its incredibly rewarding.
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Old Fri, Aug-06-2010, 07:30:34 AM   #32
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Originally Posted by maveric23 View Post
I think that the problem is related to the throttle by wire system. It always feels like there's a slight delay to me...
I randomly get a lag when I press the throttle while I double clutch down shift. Sometimes I clearly press the gas pedal to the floor and let go to blip the throttle but the engine doesn't rev at all. I had the two TPS's replaced about 16 months ago but it still does it. I figured it was just a quirk with the car.
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Old Sun, Aug-08-2010, 12:45:22 AM   #33
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I randomly get a lag when I press the throttle while I double clutch down shift. Sometimes I clearly press the gas pedal to the floor and let go to blip the throttle but the engine doesn't rev at all. I had the two TPS's replaced about 16 months ago but it still does it. I figured it was just a quirk with the car.

That's is stange!! The M's throttle is incredibly responsive when in sports mode. If anything, I sometimes find my self over reving on a downshift. Try the sports mode, Iam sure that will help. The engine has a fly-by-wire throttle, and there have been many discussions on sport vs normal. The story goes...normal is too lethargic and sport mode is too sensitive;I have gotten used to just keeping it in sports mode over the years, but many prefer to drive in normal. If your not careful, sports mode can cause the old "bucking bronco" syndrome.
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Old Sun, Aug-08-2010, 04:39:33 AM   #34
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3rd gear is sooooo dammmmmm loooong on our cars! Hate it!

Try 40-100mph in 3rd gear. "Give me some more torque, please!"
Sounds like you need a supercharger, bro lol.
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Old Sun, Aug-08-2010, 09:50:26 AM   #35
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Originally Posted by Rac'nmyT/A View Post
That's is stange!! The M's throttle is incredibly responsive when in sports mode. If anything, I sometimes find my self over reving on a downshift. Try the sports mode, Iam sure that will help. The engine has a fly-by-wire throttle, and there have been many discussions on sport vs normal. The story goes...normal is too lethargic and sport mode is too sensitive;I have gotten used to just keeping it in sports mode over the years, but many prefer to drive in normal. If your not careful, sports mode can cause the old "bucking bronco" syndrome.
I tried sport mode but it didn't make it difference for the random lag; it still occurred. It's actually harder for me to drive in Sport mode because the throttle is too sensitive.
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Old Wed, Jan-05-2011, 10:52:50 AM   #36
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Default Re: Under revving on 3rd to 2nd downshift?

My issue went away after I had the DME updated to version 4 by VF Engineering.
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Old Sun, Jan-09-2011, 05:46:06 AM   #37
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Default Re: Under revving on 3rd to 2nd downshift?

I agree with What Black107 said .... and thus I find myself having to hold the pedal in slightly longer to get the revs up as well .....
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Discussing Under revving on 3rd to 2nd downshift? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)