Thread: Late '94 W124 E420 monovalve
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Old 04-19-2013, 05:41 PM
jcjcrespo jcjcrespo is offline
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Join Date: Apr 2013
Posts: 3
Heat is back from side vents
Just replaced the mono heater valve ($300 + for a MB OEM part). Started the engine and set the A/C to 65 degrees (it's 85 outside) and it worked as it should; cold air from all vents.
Turned ignition off, went inside the house, came back and started the engine and drove 4 blocks. Heat is again coming out of side vents Any suggestions?
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