Mercedes-Benz GLS Operator's Manual page 261

Suspension settings and vehicle level per drive program
Drive program Suspension settings and vehicle level
C (Sport)
R
R
R
R
R
B (Sport +)
R
R
R
R
R
The suspension setting is firmer.
The vehicle is set to Sport level.
ROAD SURFACE SCAN is deactivated.
The curve inclination function is deactivated.
Operation with a trailer or bicycle rack: if the electrical connection has been correctly established, the vehicle
remains at normal level.
The suspension setting is even firmer.
The vehicle is set to Sport + level.
ROAD SURFACE SCAN is deactivated.
The curve inclination function is active.
Operation with a trailer or bicycle rack: if the electrical connection has been correctly established, the vehicle
remains at normal level.
Driving and parking 259