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E28 Front Bumper Shock Absorber Assembly Issues
This article discusses the shock absorbers in the front bumper of an E28, specifically how to attach them to the angle brackets, and how to attach the latter to the metal main section of the bumper.
Last Updated: 06/26/2016
Parts Group: Bumper shock absorber with angle bracket
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Ostentibly the assembly process is not all that complicated, but I still managed to wonder which side is "up" as to the various parts. I also wondered which side was the driver vs. passenger side as to the shock absorbers and the angle brackets.
After much comparison, I concluded that the driver and passenger sides are identical as to the shock absorbers and the angle brackets.
Each of the two shock absorbers has an integral plate that attaches to the body of the car. That plate is shaped like a family-crest-style coat of armor. The top is flat and the sides are sort of curved (otherwise, the shape would be a simple triange). When assembling, the flat part needs to be toward the top (otherwise the only way to get the bumper on the car would be upside down).
A large 19mm bolt attaches the shock absorber to the angle bracket. Which side is up? The nut. The bolt head is at the bottom.
The shock absorber fits inside a hole in the angle bracket, but it's not centered; it's offset. To which side? Towards the bottom. A mistake in this respect would mean that the bumper gets mounted at the wrong height.