The trunk tow hook area has been repaired before. I'm sure if you look at the inside of the trunk area you will see some damage.

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'76 300D
'82 230CE
'84 300DT
'91 300D 2.5
'86 300D 5 speed
'86 250D 5 speed
'90 300E 24v
'88 560SEC
300TE euro 5 speed
91 350SD
http://i75.photobucket.com/albums/i3...d6605222-1.jpg