[W126 Coupe] Vibration on acceleration and tranny servicing
Sulaiman Abbasi
mbcoupes@mbcoupes.com
Tue, 11 Jan 2005 20:39:31 +0300
This is a multi-part message in MIME format.
------=_NextPart_000_0058_01C4F81D.A73C3F60
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
I have suffered, and, cured both the problem you mention in your post
<vibration on acceleration - about 1300-1700rpm in 2nd>
In my case this was due to worn out universal joints on the drive shaft. =
On most other cars the universal joints can be replaced. However, not on =
our cars. I went through the usual exercise of replacing the centre =
bearing, rubber elements in the drive shaft and then finally replaced =
the entire drive shaft. Presto the problem was gone.
<when cold it seems to take a while to cycle between D and R>
The long delay in engaging "D" or "R" from neutral is indicative of a =
worn out transmission. In my case the problem was cured after a =
transmission overhaul. Everything was replaced with the exception of the =
valve body. That was omitted basically due to the high cost of the part. =
However as I recall, my mechanic did take it apart and overhaul it. This =
fellow knows what he is doing when it comes to MB transmissions. Usually =
it is recommended to replace the valve body as a whole.
Hope this helps. You may also want to search the archives on these =
subjects
Sulaiman
'89 500SEC Euro
-----Original Message-----
Date: Mon, 10 Jan 2005 10:09:58 +0100
From: myhog@surfeu.de
To: mbcoupes@mbcoupes.com
Subject: [W126 Coupe] Vibration on acceleration and tranny servicing
Reply-To: mbcoupes@mbcoupes.com
mine also has a vibration or more like a shudder just as you describe.=20
180K Km on the clock. I will look at what some of the members said but
also let me know if you find anything. I don't notice shifting =
differen=3D
ces
when cold, but around town she won't shift up unless I get upto about 70
KmH. =20
Kevin
91 500 SEC in Germany
----- Original Message -----=20
From: "rcl" <rcl@bigpond.com>
To: <mbcoupes@mbcoupes.com>
Sent: Sunday, January 09, 2005 3:48 PM
Subject: [W126 Coupe] Vibration on acceleration and tranny servicing
> My 1987 560SEC has developed a vibration on acceleration - about=20
> 1300-1700rpm in 2nd it vibrates through the drive train and I can feel =
it=20
> through the body of the car. Outside this range all seems perfectly=20
> normal. Gear changes are still smooth, although when cold it seems to =
take=20
> a while to cycle between D and R.
>
> One mech didn't really look and said the tranny was stuffed - the same =
guy=20
> told me that 90k (miles) ago - so I'm not sure he knows, or he is =
trying=20
> to scam a tranny repair for one of his buddies - any thoughts ?
>
> Also, there seems to be 2 camps on transmission servicing - those who =
say=20
> do it regularly - fluid, filers etc. And then those who say never =
touch it=20
> (especially not fluid changes) unless there is a problem......what is =
the=20
> view held here ?
------=_NextPart_000_0058_01C4F81D.A73C3F60
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1476" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2><FONT face=3DArial size=3D2>I have =
suffered, and,=20
cured both the problem you mention in your post</FONT></FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><vibration on acceleration -=20
about 1300-1700rpm in 2nd></FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>In my case this was due to worn out =
universal=20
joints on the drive shaft. On most other cars the universal joints can =
be=20
replaced. However, not on our cars. I went through the usual exercise of =
replacing the centre bearing, rubber elements in the drive shaft and =
then=20
finally replaced the entire drive shaft. Presto the problem was=20
gone.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><<FONT face=3D"Times New Roman" =
size=3D3><FONT=20
face=3DArial size=3D2>when cold it seems to take a while to cycle=20
between</FONT> <FONT face=3DArial size=3D2>D and=20
R></FONT></FONT><BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The long delay in engaging "D" or "R" =
from neutral=20
is indicative of a worn out transmission. In my case the problem was =
cured after=20
a transmission overhaul. Everything was replaced with the =
exception of the=20
valve body. That was omitted basically due to the high cost of the part. =
However=20
as I recall, my mechanic did take it apart and overhaul it. This fellow =
knows=20
what he is doing when it comes to MB transmissions. Usually it is =
recommended to=20
replace the valve body as a whole.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Hope this helps. You may also want to =
search the=20
archives on these subjects</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Sulaiman</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>'89 500SEC Euro</DIV></FONT>
<DIV><FONT face=3DArial size=3D2><FONT face=3DArial =
size=3D2></FONT></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><FONT face=3D"Times New Roman" =
size=3D3>-----Original=20
Message-----<BR>Date: Mon, 10 Jan 2005 10:09:58 +0100<BR>From: </FONT><A =
href=3D"mailto:myhog@surfeu.de"><FONT face=3D"Times New Roman"=20
size=3D3>myhog@surfeu.de</FONT></A><BR><FONT face=3D"Times New Roman" =
size=3D3>To:=20
</FONT><A href=3D"mailto:mbcoupes@mbcoupes.com"><FONT face=3D"Times New =
Roman"=20
size=3D3>mbcoupes@mbcoupes.com</FONT></A><BR><FONT face=3D"Times New =
Roman"=20
size=3D3>Subject: [W126 Coupe] Vibration on acceleration and tranny=20
servicing<BR>Reply-To: </FONT><A =
href=3D"mailto:mbcoupes@mbcoupes.com"><FONT=20
face=3D"Times New Roman" =
size=3D3>mbcoupes@mbcoupes.com</FONT></A><BR><BR><FONT=20
face=3D"Times New Roman" size=3D3>mine also has a vibration or more like =
a shudder=20
just as you describe. <BR>180K Km on the clock. I will look at =
what some=20
of the members said but<BR>also let me know if you find =
anything. I=20
don't notice shifting differen=3D<BR>ces<BR>when cold, but around town =
she won't=20
shift up unless I get upto about 70<BR>KmH. =
<BR><BR>Kevin<BR>91 500=20
SEC in Germany<BR><BR>----- Original Message ----- <BR>From: "rcl" =
<<A=20
href=3D"mailto:rcl@bigpond.com">rcl@bigpond.com</A>><BR>To: <<A=20
href=3D"mailto:mbcoupes@mbcoupes.com">mbcoupes@mbcoupes.com</A>><BR>Se=
nt:=20
Sunday, January 09, 2005 3:48 PM<BR>Subject: [W126 Coupe] Vibration on=20
acceleration and tranny servicing<BR><BR><BR>> My 1987 560SEC has =
developed a=20
vibration on acceleration - about <BR>> 1300-1700rpm in 2nd it =
vibrates=20
through the drive train and I can feel it <BR>> through the body of =
the car.=20
Outside this range all seems perfectly <BR>> normal. Gear changes are =
still=20
smooth, although when cold it seems to take <BR>> a while to cycle =
between D=20
and R.<BR>><BR>> One mech didn't really look and said the tranny =
was=20
stuffed - the same guy <BR>> told me that 90k (miles) ago - so I'm =
not sure=20
he knows, or he is trying <BR>> to scam a tranny repair for one of =
his=20
buddies - any thoughts ?<BR>><BR>> Also, there seems to be 2 =
camps=20
on transmission servicing - those who say <BR>> do it regularly - =
fluid,=20
filers etc. And then those who say never touch it <BR>> (especially =
not fluid=20
changes) unless there is a problem......what is the <BR>> view held =
here=20
?<BR></FONT></DIV></FONT></BODY></HTML>
------=_NextPart_000_0058_01C4F81D.A73C3F60--