My 123 climate control with the servo tower ate a module I think!
I had a used servo I installed last Fall. The system is now disfunctional.
no heat, no defrost, no AC well, the compressor was DOA a long time ago!
Anyone have a module for the 79 NA diesel?

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

Do you have a part number?

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I do not 'believe'. I have no use or time for this distraction. A'priori is antiquated furniture that clutters the mind and deteriorates society. Instead I investigate, research, scrutinize then choose from data what best serves as a suitable answer until a new idea or material is presented. Then I start the process again.

Yes, part number and I may have one. I have three '79's with "evil servo".

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'82 300CD
"Pearl", the very first turbo diesel 123 coupe
Totaled 11/23/18, rebuild in progress.
'85 300TD, "Artemis".
'78 300D euro, "Ol' Red", mostly retired.
'85 300D, "Gandalf".

dieseldiehard, I've had some success rebuilding the amplifier board that is used on those old systems. I wonder if that is where your problem is.

It looks like this, sits on top the servo.
http://img.justparts.com/eImage/34232e6b-433e-49c8-8070-0f37e9a47096.JPG

I've happy to rebuild yours for you and see if it gets you back on your feet.

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Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k