[W126 Coupe] Transmission Modulator Valve

[Chet Hwilka]

John,

 

It looks like there is just a clamping bracket that slips over the valve and
2 bolts attach it to the side of the transmission.  

Remove the 2 bolts, slip the bracket off and pull out the vacuum element.
Behind the vacuum element, there's a thrust pin, spring and the actual
valve.  

 

It maybe too late now, but did you check the vacuum element with a vacuum
pump to see it was actually bad/leaking?   

 

Check these guys out for a manual on the 722.3 & 722.4 transmissions.

http://www.txchange.com/atsg.htm

 

Chet

  _____  

From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Stroia
Sent: Sunday, August 22, 2010 9:05 PM
To: mbcoupes at mbcoupes.com
Subject: [W126 Coupe] Transmission Modulator Valve

 

Hi,

 

My 89 SEC is blowing white smoke out of the exhaust.  I am not losing any
coolant so I believe my transmission modulator valve is bad.  Ordered a new
one.  Got under the car to replace it but I could not get the old one off.
Turned it, pried it, pulled, etc.  Before I really wrench it and break
something off that falls into the transmission, am I missing something?  I
could not find any directions in the archives or on my owners manual CD.
Thanks for the help

 

John Stroia

89 560 SEC

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