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Gear Selector

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Old Nov 27, 2006 | 09:27 PM
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Gear Selector

Hi there folks, I drive a 1991 560SEL.

I've read bits and pieces about things like "kick down switch" and "2b." I have a dim inkling that this relates to what gear the car starts in, but I have no idea.

I'm probably just an idiot, but if someone could give me the dumbed-down version of what that switch does, and what on earth 2b means. How to use them, what they do... the works. That would be fantastic.

Thanks so much
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Old Nov 28, 2006 | 07:47 PM
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Quite a few:)
B is a back torque limiter. If you descending a steep incline you can put the car in B and it shouldn't exceed 1500 rpm. You can also use B to start in first gear (your car under standard conditions starts in 2nd).

You can also click B and then back to D and the car will start in first..

Play with it, it'll all make sense w/ a bit of fiddling. I just wouldn't recommend engaging it while moving, can be a bit harsh..

Jonathan
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Old Nov 29, 2006 | 10:22 AM
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Wow, that's a much faster acceleration!

Thanks so much!
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Old Dec 4, 2006 | 05:58 PM
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86' 420SEL & 560SEL
Originally Posted by jhodg5kc
B is a back torque limiter. If you descending a steep incline you can put the car in B and it shouldn't exceed 1500 rpm. You can also use B to start in first gear (your car under standard conditions starts in 2nd).

You can also click B and then back to D and the car will start in first..

Play with it, it'll all make sense w/ a bit of fiddling. I just wouldn't recommend engaging it while moving, can be a bit harsh..

Jonathan
Why did Mercedes design the W(126) transmission to start in 2nd gear. Was it for longevity reasons or something else? Also, is there a company other than berkwerks that sells the 1st gear start module?
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Old Dec 4, 2006 | 06:34 PM
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Quite a few:)
I have heard it was in part EPA/mileage mandated but IMHO that doesn't make much sense. Starting in 2nd is just a way to use the torque to make for a nice smooth take off...one less shift to unsettle things.

Bergwerks has been NLA for 2-3 years now. You can use the factory FGS module, wire it up and you'll have FGS.

In all honesty I have a BW FGS in my black ECE coupe..after the first couple of weeks the novelty wore off and I leave it 2nd gear start most of the time. Should I want FGS the switch is nice, it's easier then running the selector back to B etc, but considering what was paid for the BW module I now consider it a waste of $$.

Jonathan
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