[W126 Coupe] POWER

[Sharan Bains]

The MB FGS module (002 545 4132) has a speedo feed and is programmed to 
engage first gear at 7mph. First gear cannot be engaged at a higher speed 
than 7mph (unless already in first and kickdown applied, i.e. full throttle 
standing start).

All that module is doing is applying a +12V feed and is doing so at 7mph and 
less. It is not a 1st gear module at any speed above 7mph - i.e. it is not 
trigerring the 3 1st gear valves in the valve body. All it is doing is 
sending +12v to 'kickdown' into 1st if and ONLY IF speed < 7mph.

With a momentary switch it will just kickdown one gear - again, the switch 
is just sending a 12v signal. Same as kickdown - it will go from 3rd to 2nd, 
not 3rd to 1st.



talbir




>From: "mramay at att.biz" <mramay at att.biz>
>Reply-To: mramay at att.biz,Mercedes Coupes Mailing Lists 
><mbcoupes at mbcoupes.com>
>To: mbcoupes at mbcoupes.com
>Subject: Re: [W126 Coupe] POWER
>Date: Mon, 29 Aug 2005 16:19:10 -0400
>
>Dan,
>One neat thing about the BW FGS is that you can't get to first gear while
>traveling too fast. The "B" switch or throttle kickdown switch momentary
>contact MIGHT be able to engage first when traveling too fast (think third
>gear to first!).
>
>Later,
>Mike
>(happy with BW FGS)
>
>Original Message:
>-----------------
>From: Dan Landiss dan at landiss.com
>Date: Mon, 29 Aug 2005 11:10:34 -0500
>To: mbcoupes at mbcoupes.com
>Subject: Re: [W126 Coupe] POWER
>
>
>Jim Ham wrote:
>
> > What Markus forgot to mention is that up through 1985 Mercedes
> > included a first-gear start module as standard equipment - just move
> > the shift lever to "2". It is not as full-featured as the one from
> > Satish et. al., but it works.
>
>If the BergWerks are no longer available, in the later models you can
>get on-demand first gear starts by wiring a MOMENTARY CONTACT pushbutton
>switch across the kickdown switch under the throttle pedal. Touch the
>button after you have stopped, and you get first gear start for the next
>start only.
>
>Kind of nice, actually, because you don't have to remember to turn it
>off on slippery roads; and can avoid chirping the tires when the officer
>is looking.
>
>--
>--
>Never argue with a dragon, for you are crunchy and taste good with ketchup.
>
>
>
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