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  #1  
Old 11-09-2002, 09:50 PM
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floor vents are closed

As it's getting cooler now, I have discovered that the floor vents don't work. Anyone has an idea where to look for the problem?
tks, boili

ps; 500sel 1985
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  #2  
Old 11-10-2002, 05:24 PM
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boili,

When you save floor vents, the ones that come out left and right from the console and out from under the front seats to the rear passenger's feet?
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  #3  
Old 11-10-2002, 06:13 PM
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If you mean the footwell vents and your vehicle's system is similar to an 85 123 model, the vacuum servo for the footwell vents is to the right of the accelerator behind the ductwork.
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1977 300d 70k--sold 08
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1984 300SD 315k--daughter's car
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  #4  
Old 11-11-2002, 12:04 AM
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yes, I'm talking about the floor vent in the front well and under the seat. Could it also be the control unit rather the servo?
boili
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  #5  
Old 11-11-2002, 12:18 AM
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If it's similar to the 123 it could be the pushbutton unit, the switchover valve or the vacuum actuator. It's easiest to check the actuator and work your way back. At the actuator you can determine whether the pushbutton unit and switchover valve are sending vacuum to the actuator.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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