I've replaced mine three times, but we use our rear hatch more than most people use their passenger door (I installed the third seat option and use it daily for my little kids). I've not done the job; left it to a tech. However, this most recent time I also replaced the hatch's wiring harnesses, as they were beginning to act a bit weird.

Good luck!

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo