Fitted new front springs and new (TT/RS3) strut mounts + bearings last friday:
old shape springs:
new shape springs:
(both fotos aren't my own - but same suspension ans springs)
new spring (left) vs old one (right):
You can clearly see the narrow first two or three and the last two windings which caused
the clapping noise on bumps at low speeds. There is much more space between these
windings on the new changed spring.
TT strut mounts (two teeth), also used in Leon Cupra, Audi RS3 and A3 convertible:
First, the clapping noise is gone. The new springs are slightly stiffer as well. Front and rear
feel more balanced. Hard to say what the amount the strut mounts do as I changed both
at the same time. Fact is the steering feels more crisp and handling shows quicker turn in.
At the moment I run 18" winter and soft ARB settings (dampers soft to medium) - same as
before of course.
All in all: more fun and less noise.