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Old 10-19-2006, 05:00 PM   #1 (permalink)
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R129 4-speed auto vs. 5 speed auto

I've seen a lot of data in which it is said that the older 4 speed hydraulic transmission is slow shifting and slow to kick down compared to the later 5 speed electronically controlled transmission offered in the 96+ models.

First of all, is this true? Secondly, is there anything that someone has/can be done to make the transmission shift more intelligently?

Thanks for any input.
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Old 10-19-2006, 07:11 PM   #2 (permalink)
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Quote:
Originally Posted by SL600 V12
I've seen a lot of data in which it is said that the older 4 speed hydraulic transmission is slow shifting and slow to kick down compared to the later 5 speed electronically controlled transmission offered in the 96+ models.
Oops! Looks like somebody else read the Ken Rockwell article and assumed the author new what he was writing about.

Rubbish.
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Old 10-19-2006, 08:01 PM   #3 (permalink)
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Originally Posted by j_jackflash
Oops! Looks like somebody else read the Ken Rockwell article and assumed the author new what he was writing about.

Rubbish.
Did you miss the part where I asked if it was even true at all? And it was not just that article that mentioned it. Doing a search of this forum turned up the same sentiments.

But thanks for not answering my question in any detail.
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Old 10-20-2006, 02:47 PM   #4 (permalink)
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Originally Posted by SL600 V12
Did you miss the part where I asked if it was even true at all?
Nope. Did you miss where I wrote "rubbish"? Because that was my response to the notion that the old 4-speeder is slow shifting and slow to kickdown. If your car's transmission is anything less than quick shifting, then maybe you ought to have it serviced.
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Old 10-20-2006, 07:39 PM   #5 (permalink)
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Originally Posted by j_jackflash
Nope. Did you miss where I wrote "rubbish"? Because that was my response to the notion that the old 4-speeder is slow shifting and slow to kickdown. If your car's transmission is anything less than quick shifting, then maybe you ought to have it serviced.
<----- 5 -speed owner

I found a 1994 for a very favorable price and was just wondering if this would be an issue. I have honestly never driven a 4 speed SL.
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