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Old 01-29-2003, 10:22 AM
Registered User
Join Date: Oct 2001
Location: Atlanta Ga
Posts: 281
Heater does not blow air to floor ...

My 86 560SEL blows heat only from the defrost and center routes but not to the floor after I select the floor on my control panel. Is there anything major that would cause this and how do I correct it? It hasn't been a real issue because the cabin is warmed in a hurry once its turned on but my feet still kinda feel the cold and its been kinda crazy with the weather in Atlanta lately with 60 one day and 10 the next. Any help is appreciated and thanks.

P.S. She's bouncin' like crazy too and I need suggestions for resources for the least expensive places to purchase new rear nitro cells

1997 E320
1986 560SEL
1983 300SD
1972 220D
1970 250C SOLD
1971 250C SOLD
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Old 01-29-2003, 12:08 PM
Registered User
Join Date: Jan 2001
Location: Boston
Posts: 42
This is probably a problem with your dashboard switch unit whch defaults to the windshield when there is a problem. New is expensive but many are available used.

Inside the rug covering the transmission tunnel, on the passenger side below the glove box, is a bank of vacuum actuators that open and close the flaps that direct the air flow. Each actuator rceives an electrical signal from the push button unit telling it to open or close vacuum. The flap won't open if it isn't getting the signal. It is possible that the actuator, itself, is getting the signal but isn't working or that the interor vacuum element is not working. This can be tested by disconnecting the vacuum hoses from the actuator and applying vacuum with a hand pump or by connecting the vacuum hoses together in which case the flap with open and you will get heat to the floor.
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Old 01-29-2003, 12:30 PM
MikeTangas's Avatar
Senior Member
Join Date: Apr 2000
Location: So. Cal
Posts: 4,430

I bought my accumulators from FastLane. Only $96 and change each. About the least expensive you'll find.

Big EDIT: While poking around just now, I found this post by PartsMan Phil! Great deal on the accumulators - $79 a throw.
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon least its a diesel

Non illegitemae carborundum.

Last edited by MikeTangas; 01-29-2003 at 12:46 PM.
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