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Old 02-21-2001, 11:31 PM
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Join Date: Aug 2000
Posts: 17
The a/c vents in the center of the dash just stopped working. Is this a problem with the push button control unit or a vacuum problem?
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Old 02-22-2001, 08:09 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
When you hit heat, there should be no heat. Center vents are for A/c only.

If they don't work in A/C mode, you may have a vacuum problem.
Donnie Drummonds
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Old 02-24-2001, 07:44 PM
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Join Date: Feb 2000
Location: Powder Springs, Georgia, USA
Posts: 206
I have the same problem with my 1985 300TD. I have noticed, though if the interior gets very warm inside, the center vents work. I haven't figured out if it is the center vent actuator or the one the control in the control panel.
David McDonald
1981 240D
1985 300D (wrecked)
1985 300TD 365,000 miles
1969 Mustang Fastback
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