Not sure if your 300D has a solid metal control rod or a vacuum hose - one
or the other will run from the IP to the AT - it controls when the tranny
upshifts/. If there's a solid rod you may need the plastic bushing at the
AT end. It's hard to find as it;s not shown in the parts diagrams. I was
helped by the MB CLassic Dept and I now have the pn for this $2 part.
If you have the vacuum hose, check it;s condition - it may be plugged with
crap - or it may be damaged and leaking.
That's the quick n easy fix - there's also a gizmo on the AT that controls
vacuum/shift points - called a modulator - not wiure if all MB AT's have one
that can be changed -
What year is your W123?
Larry T (67 MGB, 74 911, 78 240D, 91 300D)
www.youroil.net for Oil Analysis and Weber Parts
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.
----- Original Message -----
From: "Peter Merle" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <[email protected]>
Sent: Thursday, September 28, 2006 2:03 AM
Subject: [MBZ] Transmission W123 won't upshift correctly
I have an older 300D W123 with the 711.118 transmission and all of a
sudden it will only upshift based on speed and not throttle position as
well. Furthur it won't go into top gear no matter how high the engine
revs. There are no transmission leaks but level seemed to be low when I
checked it. Added 250 ml of ATF and no change. Kickdown function still
works. Not sure what to do next! Throttle link appears Ok and working ,
no sure if it has slipped on the splined shaft on the transmission shaft
though.
Regarding level checking , when the engine is not running the level is
some 50 mm or so higher on the dipstick than when engine is running - is
this OK. Furthur the cold fluid level check - is this also done when
engine is running?
Peter
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