BMW Diesel Swirl Flap Removal

Why Take The Risk?

Your engine can be wrecked by one of the original intake swirl flaps in your manifold coming loose & being sucked into the combustion chamber! This is a significant & well known problem for BMW diesel owners with stories of £8000 engine replacements being required in some cases! 


But  don’t despair, Iridium can help you get rid of this potential time-bomb with our professional swirl-flap removal service..... 


BMW engines affected by swirl flap failures include: 

  • M47TUD20 2001> used on: E46 320d, 320Cd, X3 2.0 
  • M57TUD30 2002> used on: E46 330d, E46 330d, X3 3.0d, X5 3.0d, E60/E61 530d & 535d, E65 730d, E90/92 330d &  335d 
  • M57TUD25 2004> used on: E60/E61 525d 


Diesel BMW's feature swirl flaps in the intake manifold to aid air-fuel mixing at low engine speeds. However, these flaps are  known to come loose & can be sucked into the engine causing extreme, & in some cases terminal engine failure.  


We remove the entire intake manifold, remove the standard swirl flaps, clean & replace with our aluminium-alloy CNC- machined-Viton-sealed blanks before reassembly. This has a negligible, often-unnoticeable effect on performance or economy but totally removes the possibility of expensive engine damage through flap or screw ingestion. 


Worry-free motoring!  Don’t forget we are IMI Professional Register Technicians - your assurance of certified & approved current  technical competence!

Cost Effective Removal

4-Cylinder models just £165 inc VAT supplied & fitted.

6-Cylinder models just £185 inc VAT supplied & fitted.