BMW Genuine Final Stage Unit (Blower Regulator) for Z4 2.5i Z4 3.0i Z4 3.0si Z4 M3.2 Z4 3.0si Z4 M3.2 BMW Genuine Final Stage Unit (Blower Regulator) Please see Product Description below for vehicle compatibility. Manufacturer Warranty: 24000 miles or 2 years Quantity within package: 1