The grills in my 72 model year Bavaria do not have the large holes (nor the smaller one to the right of the large hole)...only the holes to the left of the large hole which are used to mount the grill. Although mine is a 72, it was one of the first 3.0 made in July 71. It appears that the grills like Markos shows (51131811483/4 were used from July 1971 until the end..except for the first 3.0s like mine that were probably using up the old grills without the holes (51131808703/4). There are a third set of headlight grills (51131802567/8) which are for even earlier cars and I assume they are the silver ones.
Since I don't have the holes that are in the newest grill PN, what are the holes used for?
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