New '18 G63 brakes/transmission "shudder/shake" Question. Please help.
Thread Starter
Senior Member
Joined: Jul 2018
Posts: 264
Likes: 131
From: Calabasas, CA
2018 G63 AMG x2, 2017 BMW M6
New '18 G63 brakes/transmission "shudder/shake" Question. Please help.
Hello! I am new to this MB World Forum 
I took delivery of a new 2018 G63 AMG 2 weeks ago. Yes!! I know an all new G-Class is coming out this Autumn/Winter...but I personally do not care for the all digital instruments and softened suspension the new model will have. I'm sure it will be a great G, but I like the old school look and feel of the current/2018 model.
I have asked my dealer, and they say this is normal, but I have driven another '18 G63 and what I am experiencing is much less. When I am doing normal around town driving, speeds usually in the 25-45mph range, and I am getting ready to come to a stop either for a traffic light, Stop sign or just needing to slow down...when my new G begins to slow, before it actually stops there is a very pronounced "shudder/vibration/shimmy" that can be felt from the front of the car. The feeling does not really transfer thru the brake pedal, but can be felt thru the floor of the car, and actually the whole front of the car.
The MBZ dealer tells me this is due to the solid front suspension and is normal, but if this is so...why did the other G I drove not do this? Is this a normal feeling, sensation? Also, I do not think I could have warped rotors, as my car has 500 miles and it 2 weeks old.
Thank you so much!!
I took delivery of a new 2018 G63 AMG 2 weeks ago. Yes!! I know an all new G-Class is coming out this Autumn/Winter...but I personally do not care for the all digital instruments and softened suspension the new model will have. I'm sure it will be a great G, but I like the old school look and feel of the current/2018 model.I have asked my dealer, and they say this is normal, but I have driven another '18 G63 and what I am experiencing is much less. When I am doing normal around town driving, speeds usually in the 25-45mph range, and I am getting ready to come to a stop either for a traffic light, Stop sign or just needing to slow down...when my new G begins to slow, before it actually stops there is a very pronounced "shudder/vibration/shimmy" that can be felt from the front of the car. The feeling does not really transfer thru the brake pedal, but can be felt thru the floor of the car, and actually the whole front of the car.
The MBZ dealer tells me this is due to the solid front suspension and is normal, but if this is so...why did the other G I drove not do this? Is this a normal feeling, sensation? Also, I do not think I could have warped rotors, as my car has 500 miles and it 2 weeks old.
Thank you so much!!
Thread Starter
Senior Member
Joined: Jul 2018
Posts: 264
Likes: 131
From: Calabasas, CA
2018 G63 AMG x2, 2017 BMW M6
I got my G63 into Service with the AMG Specialist/Foreman. What I am feeling is 100% not the brakes, rotors or tires; they are perfect. What I am experiencing is with all G-Classes, but much more on the 63 & 65, than the 550.
When the G is coming almost a stop, either via braking or slowing naturally, the transmission is doing it's final downshift, and then something about the pistons spinning.
We drove another '18 63, and the sensation/feeling was there, but much less than on my G.
At 2,000 miles the G63/65 has a mandatory AMG differential service, and the shop foreman says they will try and re-adapt/re-map the downshift software to make mine a little gentler. He said it will not make it worse, it might make it better or it might offer no change, LOL #honesty
But, at least I know my brakes, rotors and tires are perfect and my G is behaving like a G...maybe just a little more G than other Gs
The solid front suspension is pretty rare for any vehicles nowadays, so sensations, feelings, noises, bumps, imperfections are always more noticeable in a G-Class.
When the G is coming almost a stop, either via braking or slowing naturally, the transmission is doing it's final downshift, and then something about the pistons spinning.
We drove another '18 63, and the sensation/feeling was there, but much less than on my G.
At 2,000 miles the G63/65 has a mandatory AMG differential service, and the shop foreman says they will try and re-adapt/re-map the downshift software to make mine a little gentler. He said it will not make it worse, it might make it better or it might offer no change, LOL #honesty
But, at least I know my brakes, rotors and tires are perfect and my G is behaving like a G...maybe just a little more G than other Gs
The solid front suspension is pretty rare for any vehicles nowadays, so sensations, feelings, noises, bumps, imperfections are always more noticeable in a G-Class.
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Joined: Jan 2026
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Did you happen to ever find a true fix to this? I just bought an 18 with 1000 miles and am experiencing the same shimmy when coming to a slow stop. Was kept in climate cooled collection, brakes and rotors are new, as are tires. Was considering a trans flush but seems this may be normal considering the solid front axel.
Any feedback would be appreciated!
Any feedback would be appreciated!
