1984 300d Turbo 146k
Replace The Monovalve And Check The 3 Washers, Install The Valve,
Small Washer, Wave Washer, Large Washer, And Aux Water Pump For
Heat At Stop Light, You Can Hear The Pump Ign On ,and To Heat, Eng Off, .5 Diy. For A/c Check The Rec Dryer Sight Glass For R-12 Flowing If A/c Compressor Clutch Is Lock You Have Some R-12, Sight
Tube If Low R-12, Check For Leaks And Recharge