BMW NEW Auxiliary Air Slide BOSCH 0280140039 Mercedes-VW frequency valve Working in series with the

Working in series with the thermo-time switch

733i                 80-81

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Practical Replacement for Maintenance and Repair

New Porsche Fuel Pressure Regulator 2

BMW NEW Auxiliary Air Slide BOSCH 0280140039 Mercedes-VW frequency valve Working in series with theBMW NEW Auxiliary Air Valve BOSCH 0280140039 The auxiliary air valve increases idle speed when the engine is cold by allowing more air into the engine. It prevents the engine from installing before reaching its operating temperature, especially when the oil is thicker, and combustion is less efficient. As the engine warms up, the valve's thermostatic element closes, restoring the idle to normal. Welcome to Fuel Injection Products We specialize in