Dimensions of the S 511 HD
| Angle of approach/departure | 6.0 °/ 7.2 ° | 
| Tyre size | 295/80 R 22.5 | 
| Track width front axle/driven axle | 2132 mm/1802 mm | 
| Seats | 43 | 
| Step heights | 
 | 
| - Step at front door (above road) | approx. 370 mm | 
| - With Kneeling function activated (standard equipment feature) lowered 40 mm | approx. 330 mm | 
| - Entrance door, front | approx. 3x 184 mm + 1x 220 mm | 
| - Step at centre door (above road) | approx. 370 mm | 
| - With Kneeling function activated (standard equipment feature) lowered 40 mm | approx. 330 mm | 
| - Entrance door, centre | approx. 4x 250 mm | 
| Floor height of driver's workplace (above road) | approx. 920 mm | 
| Floor height of centre aisle (above road) | approx. 1370 mm | 
| Platform height (above floor of centre aisle) | 150 mm | 
| Headroom central aisle | approx. 2100 mm | 
| Luggage compartment/capacity | approx. 6.5 m³ | 
| - with toilet | approx. -1.2 m³ | 
| Luggage rack capacity | approx. 1.5 m³ | 
| Fuel tank capacity, left | approx. 310 l | 
| AdBlue additive tank usable volume | approx. 35 l | 
| AdBlue additive tank capacity | approx. 40 l | 
| Max. permissible gross weight (depending on country of registration) | 19,000 kg | 
| Max. axle loads, front axle/driven axle | 7100 kg/12,600 kg | 
Turning circle
| A: Overhang, front | 2265 mm | 
| W: Wheelbase, front axle to driven axle | 5005 mm | 
| C: Overhang, rear | 3195 mm | 
| D: Vehicle length | 10,465 mm | 
| E: Vehicle width | 2550 mm | 
| F: Track circle, minimal (diameter) | 14,177 mm | 
| G: Turning track turning circle, minimal | 6027 mm | 
| H: Turning circle, minimal (diameter) | 17,468 mm |