[W126 Coupe] climate control

[Dick Spellman]

Test and repair each of the vacuum elements, test the vacuum switching 
valve.  If the car is at or past 200k miles, the blower motor will be 
the near the end of it's life and it would serve you well to take care 
of this now while the dash is apart.  Otherwise leave it alone..  Test 
the small sampling blower that pulls air off of the courtesy lamp 
inlet.  If the AC work previously I would do nothing more.  If the AC 
had failed as in black death, you might want to tackle the replacement 
of the expansion valve while going through the rest of the AC 
components.  I think that's pretty much it for under the dash on the ACC.

Dick

David Fatovic wrote:

> Just thinking since I have my interior apart and out of the car.  

> Besides the control unit itself, what other items would I need?  Isn't 

> the computer in the control unit?  I guess maybe a different blower?

>

> David

>

> ----- Original Message ----

> From: Jonathan Hodgman <jhodgman at gmail.com>

> To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>

> Sent: Monday, March 26, 2007 11:57:18 AM

> Subject: Re: [W126 Coupe] climate control

>

> That would be a monumental task..  Not only would it cost a good bit 

> of $$$ in parts (computers, sensors, wiring, duo-valves etc, etc) but 

> retrofitting it in would require disassembly of the entire dash.  

> Everything on the later cars is linked, and chances are you would have 

> to swap over an inordinate amount of items that you A) can't use B) 

> can't make work on our cars w/o losing your mind.

>

> Besides, the later climate control isn't anything fabulous.

>

> If I were going to make a swap it would be to the fully manual dual 

> zone Euro Klima.

>

> Considering the time involved why not swap an M119 or M120 in..I think 

> those would be more straight forward.

>

> Jonathan

> -- 

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