Pump. Air. Secondary Injection. Smog.
An emissions component, that is part of the Secondary Air Injection system, which is responsible for Pumping clean Air into the vehicle's exhaust stream to promote a cleaner and more complete burn before the fumes exit the tailpipe.
Secondary Air Injection Pump
Fits 323i, 323is, 328i, 328is, M3
2.8, 3.2 & 2.5 liter. 323is, iC. 328 & 330i, Ci, xi. M3, 328is, iC.
Air Injection System Air Pump - Repair or Replace
A failed air injection pump or secondary air pump will often have no noticeable symptoms beyond a check engine light, but it does cause your to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and genuine parts.