[W126 Coupe] Tranie Question

[Dick Spellman]

Hi Camran:

I see in your original post that you serviced the tranny properly.  Got 
to ask, did you note the orientation of the filter when putting in the 
new one?  In other words, no chance you put it together incorrectly?  
You did return the torque converter drain plug?  You did use the correct 
fluid?  I know all rather obvious questions but, if one item is done 
incorrectly the tranny can start behaving badly.  Assuming you feel 
confident all of thiss was done correctly, I'd just go ahead with the an 
adjustment to the Bowden cable to see if that clears the late shift for you.


Refer to the manual for your year/model.  Should just be a turn or two 
in the right direction to get rid of the late shift.  Adjusting the 
Bowden cable will result in an earlier shift for all gears not just 
3-4.  You should be able to find a happy medium that gives you the 
pick-up desired and better shift points.  You are not describing flaring 
so I'd leave the vacuum modulator alone for now.  Start with the Bowden 
adjustment (3 minute job) and see if the shifting is improved.

Regards,

Dick

Camran Nassiri wrote:

> RPH- I have checked and re-checked the fluid level and it is right on 

> the second line.  However, as I drive the car it seems like it dosen't 

> want to change gears unless I let off the gas; especially the last 

> gear.  Getting on the freeway the other day I was at 75 MPH and let 

> off the gas and that's when it switched to the 4th gear.  Is that normal?

>  

> Camran

> 90 560SEC, 91 420SEL

>

>

>     ------------------------------------------------------------------------

>     From: R_Hogarth at Foundrycove.com

>     To: mbcoupes at mbcoupes.com

>     Date: Sun, 1 Apr 2007 20:29:38 -0500

>     Subject: Re: [W126 Coupe] Tranie Question

>

>     During a transmission service, the torque converter will never

>     completely drain by just letting it sit.

>

>     Fluid will always be left below the level of the output shaft spline.

>

>     To drain it completely during a transmission service, the

>     Tq-Converter either needs to be removed or a hole drilled on the

>     outside of the Tq Converter on either side of the seam weld. Once

>     drained, the hole is plugged with a self tapping tapered plug.

>

>     It’s a lot of work to get the last 1.5 qts of tranny fluid out.

>

>     -RPH

>

>      

>

>     *From:* mbcoupes-bounces at mbcoupes.com

>     [mailto:mbcoupes-bounces at mbcoupes.com] *On Behalf Of *Jonathan Hodgman

>     *Sent:* Friday, March 30, 2007 3:28 PM

>     *To:* Mercedes Coupes Mailing Lists

>     *Subject:* Re: [W126 Coupe] Tranie Question

>

>      

>

>     Don't know, but any transmission builder I've spoken with has

>     explained it as mentioned prior, which makes sense.  You want to

>     check the fluid level with it as close to driving conditions as

>     possible.  The longer you wait, the more time the converter has to

>     drain into the pan which is why you run/drive/cycle the car

>     through the gears in the first place.

>

>     Perhaps MB doesn't want any sloshing to throw the reading off, ie,

>     if fluid wiggles it's way back up the tube some.

>

>     When I check the level I re-check it about 3 times @ each try as

>     they never come out exactly the same each time.  I consider the

>     level to be where it consistently comes up to on the stick on both

>     sides of the dipstick.

>

>     So far so good;-)

>

>     Jonathan

>

>     On 3/30/07, *Shayegan, Richard* <rishayegan at davidson.edu

>     <mailto:rishayegan at davidson.edu>> wrote:

>

>     Why does the service manual say to wait 1 to 2 minutes? Not being

>     contradictory, just asking.

>

>          

>

>         ------------------------------------------------------------------------

>

>         *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 Hodgman

>         *Sent:* Friday, March 30, 2007 1:48 PM

>         *To:* Mercedes Coupes Mailing Lists

>         *Subject:* Re: [W126 Coupe] Tranie Question

>

>         I wouldn't do the waiting after having the car in gear.  You

>         want to check the level as Quickly as possible after running

>         the car through all the gears.  All waiting does is allow the

>         fluid to start draining from the torque converter back into

>         the pan, thus giving an inaccurate reading.

>

>         Jonathan

>

>         On 3/30/07, *Shayegan, Richard* <rishayegan at davidson.edu

>         <mailto:rishayegan at davidson.edu>> wrote:

>

>         When hot (and I mean hot), it should be just up to the max

>         line (mine actually will bleed out to where it's like 75%

>         towards the max side in between the two marks if I fill it to

>         the max line) if you get it hot, stop, put it in P, wait 2

>         seconds, R, wait 2 seconds, N wait, D, wait, and then back

>         (again with waiting between shifts), then let it idle for

>         60-120 seconds then check it.

>

>          

>

>         If you check it cold (i.e. at shop temperature) with the

>         engine running, run it through the gears with a wait between

>         shift, it should be slightly below the min-line, IIRC 5mm

>         below on the 722.3 transmission.

>

>         Richard

>

>

>         -- 

>         Blue Ridge Mercedes/AMG East

>         Offering Enthusiast Service, Restoration and Modification.

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>         1996 S600 Euro "Scharnhorst"

>         1991 560 SEC Full Euro ECE

>         1991 560 SEC 226Hp/271ft/lbs:)

>         1989 560 SEC AMG (N.Amer 250/295)

>         1987 560 SEC US Spec

>         1986 560 SEL AMG 6.0L 32V

>         1986 560 SL  White on Burgundy

>         1985 500 SEL Euro (Parts Car)

>         1985 300 CD For Sale

>         1980 280 SE Euro

>         1978 300D TMU

>         1987 560 SEL 162K Midnight Blue on Gray RIP:(

>         1987 560 SEC Sold

>         1992 E300D 140K Champagne on Parchment tex (Sold)

>         1990 560 SEC 154K Anthracite on Gray (Sold)

>         1988 300 TE 160K Burgundy on Palomino (Sold)

>         1980 280 SE US 185K (Sold)

>         2006 Z4 3.0Si M spec 6sp

>

>

>     The MB Coupes Website!

>     W126 SEC Mailing List

>     Postings remain property of MB Coupes, L.L.C.

>

>

>

>

>     -- 

>     Blue Ridge Mercedes/AMG East

>     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/>

>     http://www.AMGEast.com <http://www.amgeast.com/>

>

>     1996 S600 Euro "Scharnhorst"

>     1991 560 SEC Full Euro ECE

>     1991 560 SEC 226Hp/271ft/lbs:)

>     1989 560 SEC AMG (N.Amer 250/295)

>     1987 560 SEC US Spec

>     1986 560 SEL AMG 6.0L 32V

>     1986 560 SL  White on Burgundy

>     1985 500 SEL Euro (Parts Car)

>     1985 300 CD For Sale

>     1980 280 SE Euro

>     1978 300D TMU

>     1987 560 SEL 162K Midnight Blue on Gray RIP:(

>     1987 560 SEC Sold

>     1992 E300D 140K Champagne on Parchment tex (Sold)

>     1990 560 SEC 154K Anthracite on Gray (Sold)

>     1988 300 TE 160K Burgundy on Palomino (Sold)

>     1980 280 SE US 185K (Sold)

>     2006 Z4 3.0Si M spec 6sp

>

>

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