OverviewAerodynamics: Sleek, silent typeBodyshell and passive safety: Maximum stability and excellent lightweight designClimate control: Many new features for a pleasant atmosphereControl and display concept: Elegant new control centreDrive system: Class-leading efficiency in every output categoryExtended PRE-SAFE® protection: Prevention is better than cureExtended protection in the rear: Top safety level for the rearExterior design: Modern sense of status, sensual shapes and stylish sportinessHeritage: The highlights of the S-Class and its predecessorsInnovations in the new S-Class: Key new products and features at a glanceInterior design: Visual breadth and calm solidityInterview: "New S-Class with all-round vision"Lights: The first ever car without a single light bulbMultimedia features: Communication centre and concert hallSeats: Mobile office and centre of wellbeingSuspension: The world's first suspension system with "eyes"The driving assistance systems: Helpers in the backgroundThe Mercedes-Benz management team on the S-Class: The best or nothing, in every respectThe model range - The assignment: perfectionThe new Mercedes-Benz S-Class - The aspiration: the best car in the worldUnder the microscope - Burmester® High-End 3D Surround Sound system: Three-dimensional in-car soundUnder the microscope - ENERGIZING massage function on the hot-stone principle: The seats actively keep the passengers fitUnder the microscope: actuators make the S-Class more comfortable - Over 100 little helpersUnder the microscope: an unconventional development tool - Virtual human modelsUnder the microscope: energy-transparent vehicle - On the trail of energy lossUnder the microscope: interview with Marc vom Ende - The fourth dimension of sensualityUnder the microscope: perceived quality - "Perceived quality does not depend on the spirit of the age"Under the microscope: performance-enhancing comfort - Comfort is also conducive to safetyUnder the microscope: seat production - In-house seat production to the highest quality standardsUnder the microscope: the new sensors - Intelligent networking of eyes and ears

Under the microscope: actuators make the S-Class more comfortable - Over 100 little helpers

Jul 2, 2013
The new S-Class features highly sophisticated, automatic climate control functions. The seats likewise lay claim to being the benchmark in automobile engineering. In both cases this is accompanied by maximum operating convenience, ensured by numerous actuators and electric motors – there are a good 100 of these in the interior alone.
In the fan filter tract of the air conditioning unit the air is taken in by a blower consisting of a twin-shaft motor and two impellers. The temperatures in the four air mixing chambers are regulated to the desired vent temperatures by the use of mechanically coupled cooling and warming flaps. A total of 14 step motors control the flaps of the mixing zones and air vents, and three step motors (four if optional THERMOTRONIC automatic climate control is specified in the rear) control the flaps in the air ducts to the side vents and rear centre vent. There is also a step motor in each of the two air deflectors in the rear footwell. Plus there is a rear fan and a fan for the temperature sensor, making a maximum total of 21 motors.
With full specifications, up to nine seat adjustment motors bring each of the front seats and EASY ADJUST luxury head restraints into position. There are also six seat ventilation motors. In the rear there are up to twelve motors for each seat. This means that in an S-Class, 54 actuators take care of occupant seating comfort, while two more move the steering wheel to the desired position. There are also 14 pneumatic massage cells per seat, each of them activated by solenoid valves.
Other motorised helpers:
  • Four power window motors
  • Five motors controlling exterior mirror adjustment, folding and the parking position for the front passenger mirror
  • Five motors for silent closing of the doors and boot lid
  • Two motors move the tweeters in the mirror triangles if the Burmester® High-End 3D Surround Sound system is ordered (incidentally this has 24 speakers)
  • A vibrator in the steering wheel in conjunction with Active Lane Keeping Assist
  • A fan motor for the central display
  • Two motors powering the panoramic sliding sunroof and sunblind
  • Three motors to drive the electric sunblind for the rear window and the sunblinds in the rear doors
  • Two motors for the rear belt feeders, two motors for the reversible belt tensioners in the front
  • Two drives for DVD players