Air Conditioning and Coolant
Mercedes-Benz 190-Series
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Where is the low pressure valve to recharge the AC unit in a 1992 Mercedes 190 E?

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Wiki User
2010-10-02 22:37:44

Th low pressure valve s located to the right of the site glass

(where you check your freon activity) The hose is black with a

nozzle on it and has a nipple you can check for pressure. Close to

black low pressure line a blue high pressure line

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