That's interesting, looks O.K. and I like the silicone gasket idea .

It's very important for _you_ to test the unit before installation, the servo needs to operate fully and stop at the end of each direction with a *thunk* not slow down and stop .

It's adjustable and about 1/2 the servos I got would do the slow down to a stop thing in one direction, this is what causes the little amplifier thing behind the glove box to fry .

It's also critical to maintain the entire cooling system clean as a whistle ~ when you remove the radiator cap there must be ZERO crud or red/brown silty stuff anywhere .

Use the citric aid cleaner to get everything clean and then use proper coolant and distilled water mix (60 % water, 40% coolant) and change it every 12 months regardless of miles, you'll have a trouble free Klima I HVAC and ice cold Air Con to enjoy .

A tiny bit of silt or crud is all that's necessary to kill the servo and when it dies, the amplifier goes too .

New servos are still made in Mexico by/for Mopars, much cheaper, aluminum bodies and decent quality although they often need that final adjustment before fitment .

I learned all this the hard way and now choose to have only manual or Klima II equipped Mercedes' .

I understand having a keeper, IMO once you find the one you really like, stick with it and enjoy the miles as they roll on by .

__________________
-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