Anyone have an idea how I fix the recirculate feature on my 1989 560SEL?

When I press the button it lights up but nothing happens.

__________________
1973 280 - Sold
1980 300SD - Sold
1982 240D - Stolen
1988 300E - Sold
1989 260E - Sold
1989 560SEL
1994 E420 - Sold
1997 E420
2005 CL500

Rats; just wrote you a reply, and accidentally killed it. I'll try again.

If the recirc is not working, it is either the vacuum elements/servos that open the door, or the vacuum switching valve that routes vacuum to the servos, or the the climate control/recirc switch.

Odds are pretty good it's just bad vacuum servos; they get a hole in the rubber diaphragm and won't hold vacuum.

Look in the back of the glovebox liner and see if there is a small pop-out panel. behind this panel are the two recirc servos - see if they are moving the door as commanded. If not, then you will need to remove the glove box liner (pop-pins) to get to the servos; attach a small line and suck to see if they will hold vacuum.

Then, see if the vacuum lines are supplying vacuum as need to open/close the servos.
The vacuum supply to the servos comes through the vacuum switching valve, located behind the center console-right side. Pop off the long panel running down the right side of the center floor consol, and look up there to the right of the ashtray/radio area. the valve has 8 vacuum lines running to it that control all the servos. You can check the line color codes to trace down the proper vacuum lines. When the recirc switch is pushed, the vacuum switching valve will fire an electrical solenoid to the proper vacuum line, and allow it to suck. It's actually a pretty complex mechanical arrangement of the two servos, working thru linkages, and sometimes giving partial opening/closing; but you should be able to discern if one is not working peoperly.

This should get you going. vacuum elements can be bought here on fastlane, under "body mechanical and trim". The vacuum switching valve can also be bought here; but they are pretty expensive; I found a used on on ebay.
most of my vacuum elements have been replaced over th years, and I'm on my 3rd vacuum switching valve, one of those is probably the culprit.

DG

I don't know when they started the passenger side airbag....I hope it's after 89, or else this will have to be done from underneath (yeehaa).

__________________
It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

Here are a couple of pics of whats behind my glove box. From what I can tell the two things with pink ends control the recirculate flap. Correct? (see attached pics)

Also, you say "Pop off the long panel running down the right side of the center floor consol". Do you have a pic of this so I don't totally mess things up?

Thanks All!!!

Attached Thumbnails

   

__________________
1973 280 - Sold
1980 300SD - Sold
1982 240D - Stolen
1988 300E - Sold
1989 260E - Sold
1989 560SEL
1994 E420 - Sold
1997 E420
2005 CL500

Another question.....how do I remove and replace the recirculation switch?

Attached Thumbnails

 

__________________
1973 280 - Sold
1980 300SD - Sold
1982 240D - Stolen
1988 300E - Sold
1989 260E - Sold
1989 560SEL
1994 E420 - Sold
1997 E420
2005 CL500