Jerky transmission when cold
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Junior Member
Joined: Jan 2020
Posts: 43
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2013 CLS550
Jerky transmission when cold
I have a 2013 CLS550 with 48K on it and noticed a jerky transmission when cold. The problem goes away once the car warms up. Anyone else had this issue? I heard a flush may help.
Member
Joined: Sep 2017
Posts: 113
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cls550 2014
I've never really heard good things about flushing. I would do a complete fluid change though.
Senior Member
Joined: May 2019
Posts: 353
Likes: 56
2014 CLS 550
thats what I was told as well, to not do a flush but change fluids and with my 14 it requires change every 70k from what I was told, I did the change at 100k bc I bought it after that 70k mark and it had never been done and car seems to be smoother since fluids changed.
Junior Member
Joined: Sep 2005
Posts: 60
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12 CLS 550, 65 Shelby 427 SC, 03 GMC Envoy
yes, it’s sorta common, but it is due to metal wear products in the fluid. Pull the pan and look for a silvery sludge. If found, Do a “double” fluid change... (one complete fluid change, drive for a day, then do it again) to completely clean it out. You might feel an improvement after the first change, but the second one takes care of it.
