BMW & Mini - Swirl Flaps



What are swirl flaps?

Swirl flaps have been fitted on BMW diesel engines from 2001 onwards. The swirl flaps are located in the intake manifold and are designed to create air turbulence or ‘swirl’ of the air going into the cylinders.

This circulating air mixes with the injected diesel more efficiently to create a more even combustion.  The swirl flaps are situated on every cylinder intake port and are similar to a butterfly valve. Over time, the swirl flap can become loose from the spindle they are riveted to and eventually break off and become sucked into the affected cylinder causing catastrophic engine damage. This can be avoided by removing the inlet manifold and swirl flaps and fitting specialist blanking flaps in place of the butterfly flaps which would negate engine failure.

Removing the swirl flaps will not affect the performance of your engine nor will it create any faults.

Call 0161 429 8331 to book your car in or to ask any questions.

BMW & Mini Swirl Flaps Stockport, Manchester

We are located in Stockport, just off the main A6, and 2 mins from J1 or J27 of the M60.

Professional and customer focused service from qualified master & senior BMW technicians with over 45 years joint experience.          

We offer our customers a FREE collection and delivery service, from your home or place of work, within a 5 mile radius.