W116, Body and Interior Specific Aid

84 300D a/c vents not working

My 1984 300 turbo d (new to me) blows cold air out of the wind shield defrost. Nothing out of the center vents and yes the're turned on. Is this a vacuum issue or a servo issue? In either case where do I look for vauum leak? I had the under the dash panel off and there are 2 (that I can see) pretty pink plastic things. Would those be the servos?
Any advise would be helpful
Thanks
wil

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89 560sl light indicator on after brake pedal pressed

The dashboard light indicator comes on after pressing the brake pedal the first time after starting up. I've checked bulbs and all work but am not sure if they are the correct p/n. All have nickel/silver bases which I understand they should be as I was told the copper/gold bases run hot and tend to fool the light module into turning on the indicator. I just recently got this vehicle and it appears the previous owner had a problem with the 3rd brake light as it has been resoldered and has a broken holder. It functions but I am not sure it has the correct bulb installed.

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'83 300SD Missing switch above domelight?

I've been working on getting my '83 300SD back to fighting fit and I'm beginning to move on to cosmetic issues now. One thing that has been driving me nuts is a hole in the headliner, not a cigarette burn, but one that was made into it. It's about an inch square and has has molded, rounded edges. It's about an inch above or aft of the domelight. My SD has a sunroof, but the switch for that is in the cluster above the climate controls. Can anyone tell me what this hole is for?

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1987 300SDL Power Seats not moving back and forth

When I operate the seat switches on the doors(driver's and passenger's), only the seat backs will fold forward or backwards. The seat bottoms will not move forward or backwards, but the seat bottoms will move up and down. My 5foot tall wife cannot drive our Mercedes since it is set to my 6 foot height! Benz-aid help needed! Thank you.

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616 617 Diesel exhuast manifold nuts

I recently replaced my exhaust manifold on my 617.951 diesel and couldn't find new copper locking nuts anywhere so I reused the old ones with red thread lock. It's been about five months since then and I noticed a little oil around the front of the gasket, I checked the front nut that I can get to and it was loose enough that I could turn it with my fingers.
My question is, where can I find new locking nuts and what is correct torque for these nuts? My Chilton manual said 18-21 ft lbs but that doesn't seem very tight. Thanks for your help

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