DISA Valve

The Genuine BMW DISA valve, also known as an intake manifold adjuster, is crucial for maximizing your BMW's performance across its entire operating range. This component dynamically alters the intake runner length – lengthening them at lower engine speeds to boost torque and shortening them at higher speeds to increase horsepower. Located on the lower portion of the intake manifold, a faulty DISA valve is a common cause of issues like hesitation during acceleration, a rough idle, and diagnostic trouble codes related to lean fuel conditions. Symptoms of a failing DISA valve include noticeable hesitation at low RPMs, a rough idle, and potentially loud noises originating from the engine bay. This Genuine BMW part is manufactured in Germany and meets BMW's stringent quality standards. The DISA valve features a metal shaft, distinguishing it from some aftermarket alternatives that may use plastic shafts. This specific unit is the larger of the two DISA valves found in N52 engines. This intake manifold adjuster is specifically designed to fit various BMW models equipped with the N52 engine, including the 330i, 330xi, 530i, 530xi, Z4, and 328i variants from model years roughly spanning 2006 to 2011, depending on the specific chassis and engine configuration. Always verify fitment with your vehicle's details.