When I did my glow plugs about a month ago, my buddy and I both agreed that the pass. side was actually easier. Get yourself a good QUALITY universal for those cover bolts that are hard to reach. You can test your plugs individually at the uvc connector. Pull the conn. apart and touch the two forward and two rear pins with a multimeter. If they are toasted they will show an infinite reading. You will probably see a "1" all the way to the left on your screen. I had five burnt out and replaced them all and my starting prob is gone. 12 degrees this morn and fired like nothin.