Soldier
Hi all. I haven't posted in a while. I am having a strange vibration in my steering wheel when I brake, usually under light to medium braking. Could this be the FCAB? I never replaced mine when I put my cup kit on. Or could this be something else? There are numerous possibilities this could be so a little insight could go along way.
Thanks for the replies
Wiseguy
When braking only? Sounds more like warped rotors.
fCAB going bad is more imprecision and clunkyness in my experience.
325i, 2005, 5MT, Silvergrey, leatherette, Sport package; CDV delete, KONI STR-T & KYB Excel-G, Weisslichts, Stewart H2O pump
328i, 2010, 6MT, Spacegrey, dakota leather, M-sport packages; has a 330 intake but no tune - yet
Wiseguy
I had that issue before I replaced my FCAB and control arms that had bad ball joints. Haven't had the issue since.Originally Posted by daveuls10
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Campieri
your symptoms definitely sound like bad FCABs. i'd start there. mine did that on my first ZHP.
peter
2004 330i ZHP
2005 330iT ZHP
2010 328iT M Sport
Campieri
Have a friend watch your front wheels while you drive slowly. Jam on the front brakes. If he sees the whole wheel assembly move towards the back of the car you FCAB are shot
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Enforcer
It will also effect inflict wheel shimmy when breaking and accelerating at high speeds.
It definitely sounds like CA's. But don't be quick to rule out rotors either...
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Messaggero
I had the same symptoms and a set of Z4M fcabs cured the wheel shimmy for me.
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