Originally Posted by maharaj1

Hope these help. For what its worth I've worked on a lot of N62s both in and outside the vehicle. From valve cover gaskets to full tear downs & rebuilds. Doing valve cover gaskets n the car isn't to bad, its the worse in the E60 5 Series, not a lot of space to work with. My advice, put a little grease on the spark plug tubes so that they seat properly in the valve cover. Also if you are having trouble getting the cap nuts to thread with the new grommets you can microwave a cup of water for a couple minutes and put the new grommets in the water to let them soften up a little it. Tightening them in sequence definitely helps in the proper seating of the valve cover. Most techs will not use a torque wrench on the valve covers. Use a 1/4 drive ratchet and tighten them down, you will feel when the cap nuts can't be tightened anymore without using an excessive amount of force. The five bolts can be torqued down if you desire but again if you are familiar with working on your own vehicles you can do it by feel and will know when they have been significantly tightened. Best of luck.