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Old 01-02-2003, 09:42 AM
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Join Date: Jun 1999
Location: Raleigh, NC, US
Posts: 47
W140 Right side heat

1996 S320 has right side het that doesn't blow hot air unless thermostat is set at max. Is this a thermostat problem in the dash?

Also have air leak around windshield. It's not the original glass. When the weather turned cold I think the sealant shrunk. I was thinking about using silicone sealant once I got the molding off. Any one know how to remove either left or right side molding an the chrome strip at top of windshield.

1996 S320
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Old 01-03-2003, 02:15 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
If the heat both sides aren't equal when the same temp is selected then the heater valve(DUO) may be at fault. IF you un-plug the connector at the valve then both sides should get very hot.
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Old 01-03-2003, 02:18 PM
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Join Date: Jun 1999
Location: Raleigh, NC, US
Posts: 47
THanks for the reply. The DUO was replaced but still have problem as previously described. What would next step be?

1996 S320
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