SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Transmission gear shift performance

Old Aug 25, 2005 | 07:00 PM
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Transmission gear shift performance

Before I talk to my dealer, I'd like to get an idea about how the AMG "SpeedShift" transmission should perform - in terms of how fast it changes gears.

I find the shift from 1st to 2nd is very quick. During "modest" acceleration, it shifts from 1st to 2nd without any noticeable lag; I couldn't ask for anything more!

Going from 2nd to 3rd (and 3rd to 4th) is totally different - it's like a slush box, taking quite a while to get into gear.

The above applies to both automatic and manual modes.

Is this typical? Does the "Speed" in the SpeedShift only apply to the 1-2 shift?
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Old Aug 25, 2005 | 07:06 PM
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LOL! Speedshift is nothing more than 2 more electric switches to change the gears. Even the gearshift is electric.
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Old Aug 25, 2005 | 07:27 PM
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Originally Posted by E55AMG99
LOL! Speedshift is nothing more than 2 more electric switches to change the gears.
It's a little bit more than that. For starters, gearshifts are supposed to be faster than the regular MB slushbox. And the software behind those "2 more electrical switches" is a lot more sophisticated than in many other a slushbox, which should make it react faster and more to the point (adaptive).

It's still a slushbox though, no argument about that.
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Old Aug 25, 2005 | 07:31 PM
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Yeah, I know it's supposed to be quicker but my butt dyno and my G-Tech couln't tell the difference.
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