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Re: Damage to Undercarriage from Speed Bump? (archive)

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Posted by tummyrub on November 15, 2000 at 23:21:06:

In Reply to: Re: Damage to Undercarriage from Speed Bump? posted by Mario on November 13, 2000 at 07:58:36:

a tech inspect for a track event discovered a crack in mine aound one of the bold holes. The shop places a large washer and adhesion material to hold me over until the part comes into my BMW dealer. ( Hmmm I wonder why dealers have huge showrooms but closet sized inventory storage areas?). I know of no specific reason for the crack. Although I have had to have my sway bar reinstalled 4 times. In all of those cases the sway bar "popped" when turning into a drive way at slow speed.
......Gary

Rick,

"...I notice that there is kind of protective skeleton of black metal tubing under the front of the car protecting the drip pan and the transmission."

That is called the BMW X-brace. It was designed and bolted to the bottonm of the frame to provide additional chassis stiffness. All e36 convertibles and roadsters have them.

Not only does it make the car stiffer, it is responsible for the phenomenal turn in of the car but it also provides some protection to undercarriage dings.

Provided the ding was hard enough - "when in doubt, have it checked out"

Mario





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