Hello and Happy New Year to all,

Does anyone know where I can find information on the different setting in the GLC63?

For example I understand the suspension options (comfort highest, S+ Lowest), how about the "dynamic" options, what changes between them?

Thanks in advance.

 

There isn't a comprehensive writeup anywhere. There are bits and pieces you can find and if you have an understanding of vehicle dynamics you can piece it together. Each of the settings influence a certain subcomponent.

Yes, the suspension is probably the most straight forward. Comfort is most comfortable and then as you go up it becomes more sporty and handles better as the vehicle exhibits less body roll.

The engine setting controls the throttle map and shift programs. Comfort has a progressive throttle map, meaning it requires more throttle pedal movement for a corresponding engine response. Sport and Sport+ (Dynamic) have aggressive throttle maps, where a small throttle pedal movement results in an increased engine response to feel faster off the line. Race has a linear throttle map, so 50% pedal results in 50% power for the best control over the engine response on a track or a dynamic back road. The shift programs control the shift points relative to the throttle input. As you move up in the modes it holds gears longer and downshifts more aggressively and faster, but if you put the transmission in M, then you are in charge of the shifts.

The AMG DYNAMICS setting is probably the hardest to understand. Basic, Advanced, Pro and Master control the chassis dynamics. Specifically they control the power distribution and torque vectoring on the rear axle via the electronic locking differential and also influence steering angles. As you step the mode up towards Master, the rear axle becomes more willing to help you with rotating the car as in the car oversteers more, so that you have to steer less with the steering wheel and can steer more with the throttle, whereas in Comfort mode the rotation is more neutral and balanced. Basically this settings controls the oversteer and understeer characteristics of the chassis. Actively shaping the vehicle dynamics. BTW, the Master mode can only be selected if you put ESP at least in Sport Handling mode. Master is the most dynamic setting and generally meant for track use. I've been completely sideways in Master accidentally early on in my ownership of my C63 before I fully understood how each mode behaves. That's less likely in the GLC due to 4Matic+ and the generally less playful chassis.

 

Doesn't the amount of boost to steering change, more effort required in sport, sport +? , And does the ratio of input to wheel response change, less steering wheel movement to achieve the same effect on the road ?

 

Yes, the amount of assist changes in relation to the selected AMG DYNAMICS mode as well, I forgot to mention that, but the ratio doesn't change. AMGs do have a variable ratio steering rack, but the variable ratio is backed into the rack. The spacing between the teeth changes. The teeth are farther apart in the center of the rack and get closer further out, so the ratio is tied to how far you turn the steering wheel and not the mode. The steering ratio becomes quicker as you turn the steering wheel more. Around the center it's more indirect and the more you turn it, the more direct it becomes. The benefit of this is with small steering inputs on the highway, the steering is less sensitive for straight line driving, but the steering becomes quick and direct when cornering say around a track or a canyon road, but the ratios are always consistent in each mode. My Audi RS5 I had before had a dynamic steering rack, where the ratios changed depending on the selected drive mode. This was super inconsistent as every time I changed the drive mode, it took a moment for my muscle memory to adjust to the changed ratios.