If its anything like the antenna seal on my 560SL, it will be very simple. You'll probably have to remove the antenna motor housing along with the antenna by carefully sliding it down and out from around the old seal. Then carefully remove the old seal making sure not to scratch the car.Again be very carefull when placing the new seal (you may need a small flat head screwdriver to get it down properly.Now just slide the antenna back up through the new seal.The antenna probably has a ball on the bottom end of it which will make it difficult to place all the way back up into place.If this happens just put a little vaseline on the ball and it should slide right into place.