Quote:
Originally Posted by Joe T.
I had the pin break on my old 228 before I traded it in. I bought a new one for $8, but I couldn't ever get the actuator to stop in the right place to line up the new pin. The dealership also quoted a hilarious $90 to install it. I ended up just wrapping a bit of wire around the flap to keep it open at all times and that worked just fine for me.
My M235 has the M Performance Exhaust and I hear the flap rattling a little on startup, but once the flap is open I don't hear it at all. At this point, I think I'd prefer that there was no flap to begin with.
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I’ve been doing research on all bmw models with the flap rattle on the forums.
Most do say when they mod the faps to stay open the rattling stops.
I came upon an easy way to keep the fap permanently open by removing fuse 146. I have the 230i exhaust. For the M235i/M240i fuse 146 & 147 in the trunk.
I removed the fuse while the valve was open and so far one day later no rattle.
I’ll update in a few more days.
I did hear it’s difficult to install the pin spring clip.