[W126 Coupe] Transmission Problems with upshifting

Mark Reimers mark at reimers.com
Mon Dec 17 20:27:14 EST 2007


I think the valve body would be less hassle..



Mark Reimers

Reimers and Associates, Inc.

775-772-3607

________________________________

From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Markus Meyer
Sent: Monday, December 17, 2007 5:18 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Transmission Problems with upshifting



Why not swap the whole trans? Or is the valve body easier to do?

Markus Meyer
mfm at meyerprobateproperties.com
www.meyerprobateproperties.com <http://www.meyerprobateproperties.com/>
Meyer Probate & Properties, LLC
484-919-9762






-------- Original Message --------
Subject: Re: [W126 Coupe] Transmission Problems with upshifting
From: "Mark Reimers" <mark at reimers.com>
Date: Mon, December 17, 2007 7:05 pm
To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>




Jonathan,



I've been trying to assess the time involved for the exchange if I have
both cars side by side on racks to replace the valve bodies. Any SWAG's
(Silly Wild Assed Guess) on the time?



Mark Reimers

Reimers and Associates, Inc.

775-772-3607

________________________________

From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Jonathan
Sent: Friday, December 14, 2007 8:03 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Transmission Problems with upshifting



Interesting, well, I would take the valve body from the good trans and
install it in the not so good transmission. Just be aware of the
plastic 'catch/slot' on the drivers side..if you don't engage that it
Really won't work. Also, there is a small spring loaded piece of
plastic that rests in the valve body..when you drop the VB, don't turn
it over, have a look @ where it sits..should you lose track I do have
that info in my machine.

Also, pay attention to where the 3 short bolts go on the VB..I want to
say they are on the passenger side but most of the transmissions I have
been working on of late are out of the car.

All it takes is the tiniest piece of gunk to make it's way into the
VB..similar pieces could all but never be found.

Jonathan


Mark Reimers wrote:

Jonathan,



Disconnecting the kick down switch was no help for the shift problem.
OK, I have a 1990 560 SEC parts car sitting next to my garage with a
running engine/transmission. What's best? Swap transmissions or just
clean out the valve body? By the way, the transmission shop said there
was no debris in the pan.



Mark Reimers

Reimers and Associates, Inc.

775-772-3607

________________________________

From: mbcoupes-bounces at mbcoupes.com
<mailto:mbcoupes-bounces at mbcoupes.com>
[mailto:mbcoupes-bounces at mbcoupes.com
<mailto:mbcoupes-bounces at mbcoupes.com> ] On Behalf Of Jonathan
Sent: Friday, December 14, 2007 6:21 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Transmission Problems with upshifting



Hello Mark,

Sadly, nothing really..to do the job properly one needs to drop the
valve body and disassemble/clean the unit. Rather tricky w/o diagrams
and a familiarity w/ what is hiding in there!

I'll be curious to hear how you make out w/ the KD.

Jonathan

Mark Reimers wrote:

The car has 105000 mile and no I did not check the kick down switch. I
will in the morning. What can I use to flush the gunk from the valve
body?



Mark Reimers

Reimers and Associates, Inc.

775-772-3607

________________________________

From: mbcoupes-bounces at mbcoupes.com
<mailto:mbcoupes-bounces at mbcoupes.com>
[mailto:mbcoupes-bounces at mbcoupes.com
<mailto:mbcoupes-bounces at mbcoupes.com> ] On Behalf Of Jonathan
Sent: Friday, December 14, 2007 6:11 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Transmission Problems with upshifting



Did anyone check to see if the kick down switch is stuck?

I'd unplug it just to be sure. Also might check the linkage make sure
it hasn't slipped Way out of adjustment.

Typically when I see mod's fail you still have all your forward gears.

Could also be some gunk has made its way into the valve body.

How many miles on the car?


Jonathan


Mark Reimers wrote:

Hi all,



3 days ago I'm driving my 91 560 SEC and everything is great. I get on
the freeway and punch it to get to speed. The car shifts to second and
stays there. Checked the fluid level and it was low so I put some in.
Problem remains. Took the car into a local tranny shop and had them
replace the fluid and filter including draining the torque converter.
Problem remains. I've got reverse, 1st and 2nd and nothing else. Did
some searching in the archives and concluded it might be the modulator.



Any ideas?



Mark Reimers

Reimers and Associates, Inc.

775-772-3607

--

Blue Ridge Mercedes
Offering Enthusiast Service, Restoration and Modification.
Providing quality parts to discriminating customers in all parts of the
world.
Located in the Greater Atlanta area.
http://www.blueridgemb.com <http://www.blueridgemb.com/>
*Updates weekly*

1996 S600 Euro "Scharnhorst"
1991 560 SEC Euro ECE Conv. (for sale)
1991 560 SEC 226Hp/271ft/lbs (TT conversion
IP)
1989 560 SEC Euro ECE *Parts*
1988 300 TE
1989 560 SEC AMG (Mech.lifter/radical cam conv.)
1986 560 SEL 6.0L 32V AMG
1980 280 SE Euro
2006 Z4 3.0Si M-Spec<
/u1:p>








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The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.








--
Blue Ridge Mercedes
Offering Enthusiast Service, Restoration and Modification.
Providing quality parts to discriminating customers in all parts of the
world.
Located in the Grea
ter Atlanta area.
http://www.blueridgemb.com <http://www.blueridgemb.com/>
*Updates weekly*

1996 S600 Euro "Scharnhorst"
1991 560 SEC Euro ECE Conv. (for sale)
1991 560 SEC 226Hp/271ft/lbs (TT conversion IP)
1989 560 SEC Euro ECE *Parts*
1988 300 TE
1989 560 SEC AMG (Mech.lifter/radical cam conv.)
1986 560 SEL 6.0L 32V AMG
1980 280 SE Euro
2006 Z4 3.0Si M-Spec






________________________________






The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.







--
Blue Ridge Mercedes
Offering Enthusiast Service, Restoration and Modification.
Providing quality parts to discriminating customers in all parts of the
world.
Located in the Greater Atlanta area.
http://www.blueridgemb.com <http://www.blueridgemb.com/>
*Updates weekly*

1996 S600 Euro "Scharnhorst"
1991 560 SEC Euro ECE Conv. (for sale)
1991 560 SEC 226Hp/271ft/lbs (TT conversion IP)
1989 560 SEC Euro ECE *Parts*
1988 300 TE
1989 560 SEC AMG (Mech.lifter/radical cam conv.)
1986 560 SEL 6.0L 32V AMG
1980 280 SE Euro
2006 Z4 3.0Si M-Spec
________________________________


The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.

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