The modulator is available here on PP. It is around $70. It is located on the passenger side of the trans toward the rear of center (follow the vac line). The kickdown sol is on the forward part of the trans on the same side.

__________________

All Diesel Fleet
1985 R107 300SLD TURBODIESEL
2005 E320 CDI (daily)

LOTS of parts for sale!


EGR block kit
http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html

1985 CA emissions 617 owners- You Need This!
Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst.

Sanden Instalation Guide (post 11):
http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html

I can't seem to find the proper modulator part for this transmission. the only ones I see on PP are different styles, a black one and a green body one, whereas the one I have has a red body and a cream color swiveling cap - the vac line connects directly to the cap.
I am assuming they are not interchangeable.

I will jump the kickdown solenoid tomorrow to see if it clicks or not.

__________________
1981 240D ... 265k
1977 240D ... 265k
1977 240D ... 250k

Did you ever solve your issue?

__________________
-disav

99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD

I did not solve it unfortunately, I put in a brand new modulator and no change

I tried one more fluid drain and fill and there were pretty large shards of metal in the fluid.. so I am assuming something is toast inside the transmission.

But, swapping the modulator is easy if anyone ever needs to do it. and by fixing the vacuum leaks I did get 1st gear back, which i never had with this car.

With all the other issues the car had and parts it needed, and now a bum transmission... it has now moved on to the great junk yard in the sky. RIP Lucy, your brother Linus misses you :,(

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1981 240D ... 265k
1977 240D ... 265k
1977 240D ... 250k

you never checked vacuum supply to the modulator, did you? these forums are useless...

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Pierre Hedary 1985 280SEL, 1970 111.026 in progress
Mercedes technical advice hotline: 407 765 2867
[servicing older Mercedes in the state of Florida with competence and passion].

From the standpoint of an honest MB technician, Vegetable oil is a threat to your diesel engine's mechanical integrity.

No ;

Not useless, just not as good when the O.P. doesn't follow directions and never answers the questions given to help him figure out the actual problem .

I missed where he mentioned the tranny's model # when he was under the car repeatedly fooling with the modulator .

BTW : my '82 240D had a similar problem and fiddling with I don't remember what and adding Trans-X got it to shift again for several more years and close to 35,000 miles before the weeping ATF drove me bonkers .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better