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Old 06-06-2013, 09:22 AM
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540 M-Sport 540 M-Sport is offline
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Location: Seattle, WA
Join Date: Apr 2004
Posts: 6,037
Mein Auto: 01' 540 M-Sport, Scuderia
Originally Posted by Crutzy View Post
Why braided stainless steel?
What does that do that rubber won't do (besides look pretty)?
Does SS really make a difference in braking performance?
Slightly firmer pedal feel....and will typically stay that way (better consistency throughout it's life). The one area of concern with them, is most brands do not have the proper fittings on each end to prevent "clocking" or rotating of the hose once fitted. This can cause the hose to rotate in such a way (over time) that it rubs on something and wears causing failure. I had this exact situation happen on my 540 on the left front line. The hose began rubbing on the inside fender eventually wore through the ss braiding and caused fluid loss and loss of braking. Scary. I believe forum sponsor ECS Tuning is the only vendor that makes BMW ss brake lines with the proper bosses to prevent this clocking. FWIW

If you use another brand (like Stop Tech, that I am using) you should check and inspect your brake lines at each oil change, particularly the front ones.
540 M-Sport package (Canadian market), factory Bluetooth phone integration, factory M-Audio 10" dual voice coil subs, Homelink, M5 rear stabilizer bar, M5 rear subframe braces, H&R 15mm wheel spacers, ST X (KW) coilovers, Stop Tech ss brake lines, Akebono Euro Ceramic brake pads, oem Brembo and Zimmerman rotors, Dinan Stage 1 software, Strong Strut front upper stress bar, BMP strut tower reinforcement kit, USA Spec Ipod/Iphone integration.
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