GL63 Transfer case chain
#1
Senior Member
Thread Starter
GL63 Transfer case chain
Just for info on the GL63 transfer case. I had transfer case issues so I went to change the chain. It went pretty smooth and fast. I left the transfer case in and separated it to change the chain(HV-091). This was a lot faster than removing the transfer case as an entire unit. I had raised the suspension and drove it up on ramps and worked on it on my back. ll together, it took about 2 hours with cordless power tools. It also took less than a quart of 134 oil.
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chassis (08-17-2022)
#2
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MY'14 W212 M276 3.5NA @60kMi
Just for info on the GL63 transfer case. I had transfer case issues so I went to change the chain. It went pretty smooth and fast. I left the transfer case in and separated it to change the chain(HV-091). This was a lot faster than removing the transfer case as an entire unit. I had raised the suspension and drove it up on ramps and worked on it on my back. ll together, it took about 2 hours with cordless power tools. It also took less than a quart of 134 oil.
Wondering how they catch all the loose metals swirling around the single quart of oil... did you notice any internal magnet or a magnetic plug or just none of the above
#3
Senior Member
Thread Starter
I am familiar with transfer case chain stretch as it happened to my gl450 back in 2014. it was the same sound. There is a magnet in case and there were metal flakes but not much. After I heard the noise I immediately downed the gl63 and bought a chain. I actually also bought a 23k mile transfer case also(just in case). I have that one sitting in storage so I will have it if I need it in the future.
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chassis (09-08-2022)
#4
great info angelglo. Im curious about the "noise" you had.. im chasing a vibration that comes and goes (not wheel balance) ML63, 2014, 86000 Kms , have replaced the driveshaft assembly with no improvement., figuring maybe the chain might cause the vibration
#5
Senior Member
Thread Starter
it was the common clunking noise for stretched chains or broken tensioner. It's pretty distinctive and can not be mistaken for a vibration. Did you also change the flex joint and support bearing?
#6
thanks Angelglo, for the info. yes whole new driveshaft , with center bearing and flexdisc., there is a small bit of movement of the transfer case output coupling, but doesn't seam excessive. hopefully i get to the root of the problem and ill let you know the outcome