Purchased the OEM Mercedes repair kit which comes with 2 brackets and 4 hexhead bolts and 4 self-locking nuts. Installed only the R side as it was side with the "metal-fatigued" broken bracket. Repair including partial removal of R rear trunk compartment trim took less than 30 minutes. Although the bracket kit was pricey at $78.00 list from Mercedes, it made a very nice repair.