I90E Heater valve (monovalve test)

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I90E Heater valve (monovalve test)

04-09-2014, 12:38 AM

MBeige

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Quote:

Originally Posted by lear60man

OK, so vacuum is on to the monovalve (to keep it closed) with heat switch OFF. The vacuum line runs across to the drivers side under the front wiper. Ill try to locate where it goes next. Thanks for the reply!

There is no monovalve in a 190E.

You're talking about a heater valve. In the 190E it is vacuum actuated. A "monovalve" is, on the other models (w123, w124, w126), electric powered.

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