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Home >> Mercedes Benz >> 2021 >> E450 Base, 2D Convertible >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Body - 238 Chassis (2 Of 6) >> Basic Knowledge >> ENERGIZING Convenience Control, Function - GF82.90-P-0005FH

ENERGIZING Convenience Control, Function - GF82.90-P-0005FH

Model 238 

Up To Model Year 2021 

With Code P72 (ENERGIZING comfort control) 

G15468166Courtesy of MERCEDES-BENZ USA

Shown On Model 238 as of 01.06.2018 

G15468167Courtesy of MERCEDES-BENZ USA

Shown On Model 238 up to 31.05.2018 

ENERGIZING comfort control, general 

The ENERGIZING comfort control system combines various individual functions to form programs that are assigned to specific lead topics.

The characteristics of the individual functions generally serve to increase the individual well-being of the driver or all vehicle occupants.

Mental and physical fitness can also be increased by addressing all of the senses in a coordinated manner. In monotonous driving situations, the driver can be supported by an activating or refreshing program, or by a relaxing or warming program in emotionally stressful situations. In the event of tension, a program with guided relaxation exercises can help.

A separate program is available for each of the following lead topics:

The composition of the programs is based on expert knowledge and research reports from the areas of medicine, physiology and psychology.

The programs can be used to activate or change several individual functions with a few operating steps. The essential customer benefit of the ENERGIZING comfort control system therefore lies in the sensible combination and characteristics of individual functions.

The ENERGIZING comfort control system is a pure software system that is implemented in the head unit.

Program overview 

The ENERGIZING comfort control system consists of several programs. Several functions are assigned to each program. If one of the involved functions represents a lead topic, this function is defined as a program's lead function.

The characteristics of the individual programs depend on the vehicle equipment.

Lead topic Freshness Activation Training Warmth Relaxation Relaxation PowerNap
Program Refreshment Activation Active relaxation Healthy heat Enjoyment Well-being PowerNap
Control function Air pulsation Music - activating Training video Armrest heater, seat heater Seat massage, massage wave Seat massage, seat heater Music - phase-related
Individual functions, equipment              
Standard Ionization Ionization Ionization Ionization Ionization Ionization Ionization
Standard Fragrancing Fragrancing Fragrancing Fragrancing Fragrancing Fragrancing Fragrancing
Code 877 (Ambiance illumination) Ambiance light Ambiance light Ambiance light Ambiance light Ambiance light Ambiance light Ambiance light
Code 401 (Seat climate control for driver and front passenger) Seat ventilation Seat ventilation - - - - Seat ventilation
Code 906 (Front armrest heater) - - - Armrest heater - - -
Code 401 (Seat climate control for driver and front passenger) or code 873 (Seat heater for driver and front passenger) or code 902 (Seat heater Plus for driver and front passenger) - - - Seat heater - - -
Code 443 (Steering wheel heater) - - - Steering wheel heater - - -
Code 399 (Front multicontour seats with massage function) - Active seat - - - - Seat massage
Standard - Music - - Music Music -
Standard - - Video - - - -
Standard - - - - - - Heating, ventilation
Code 228 (Stationary heater) - - - - - - Stationary heater
Standard - - - - - - Instrument cluster lighting (A1)
Standard - - - - - - Parking brake
Standard - - - - - - Central locking
Standard - - - - - - Power window
Code 413 (Panoramic sliding sunroof) - - - - - - Panoramic sliding sunroof
Code 413 (Panoramic sliding sunroof) or code 540 (Electric roller sun blind for rear window) - - - - - - Roller blind

Refreshment program 

The refreshment program can be used to counteract a fatiguing effect due to a uniform climate control. Activating stimulation of the driver and further vehicle occupants is carried out primarily by changing the interior climate.

The lead function of the refreshment program is the air breeze (air pulsation), which is implemented with cooling pulses of air from the air conditioning system. The air is also cleaned through ionization, and a pleasant fragrance is released. The vehicle interior is illuminated with cooling, activating colors, and the seat is ventilated.

The refreshment program is primarily intended for long-distance journeys with regulated climate. However, it can e.g. also be called up at the start of a journey, while stationary, and during heating in the winter.

Activation program 

The activation program helps to counteract the fatiguing effect of a monotonous driving situation. Activating stimulation of the driver and further vehicle occupants is carried out primarily through activating music with a fast rhythm.

The lead function of the activation program is the activating music. The audio equipment plays pieces of music with a fast rhythm that have been compiled in a playlist. The air is also cleaned through ionization, and a pleasant fragrance is released. The vehicle interior is illuminated with cooling, activating colors, the seat is ventilated, and an active seat program is executed.

The activation program is primarily intended for long-distance journeys with a monotonous driving situation. However, it can e.g. also be called up at the start of a journey, while stationary, and in stop & go traffic.

If the yellow warning level is reached by ATTENTION ASSIST, it explicitly suggests the activation program. On reaching the red warning level, ATTENTION ASSIST suggests the PowerNap program.

Active relaxation program 

With the active relaxation program, the driver and further vehicle occupants can primarily counteract the effects of tense muscles, numb limbs or stress through specific relaxation or activation exercises.

These exercises are presented in short videos.

The lead function of the active relaxation program is various guided exercises that are played via the video player. The air is also cleaned through ionization, and a pleasant fragrance is released. The vehicle interior is illuminated in a color that can be perceived as both stimulating and relaxing.

The active relaxation program is primarily intended for breaks during a physically or mentally stressful long-distance journey. However, it can e.g. also be called up before or after a journey, and in stop & go traffic. Video presentations during the journey are not supported.

Healthy heat program 

The healthy heat program can be used to relax the driver and further vehicle occupants, and to increase their well-being. This is carried out through discrete, healthy warming and a warm ambiance.

The lead function of the healthy heat program is the interconnected surface and seat heating. The air is also cleaned through ionization, and a pleasant fragrance is released. The vehicle interior is illuminated with a warm color. The steering wheel is heated discretely.

The healthy heat program is primarily intended for use in heated vehicles (usually at an outside temperature lower than the nominal interior temperature). However, it is not a pure winter program. With a regulated climate, this program can also be used as a supplement for muscle relaxation with guided exercises.

Enjoyment program 

The enjoyment program can be used to physically and mentally relax the driver and further vehicle occupants. This relaxation is carried out primarily by a massage on the massage seat.

The lead function of the enjoyment program is a massage program.

The air is also cleaned through ionization, and a pleasant fragrance is released. The audio equipment plays relaxing pieces of music that have been compiled in a playlist. The vehicle interior is illuminated with a warm color.

The enjoyment program is intended for short distances, long distances, at any time during the journey, while stationary, and for any season.

Well-being program 

The well-being program can be used to physically and mentally relax the driver and further vehicle occupants. This relaxation is carried out primarily via a back massage that is combined with local heat.

The lead function of the well-being program is the hot stone massage program that is implemented in the massage seat. The air is also cleaned through ionization, and a pleasant fragrance is released. The audio equipment plays relaxing pieces of music that have been compiled in a playlist. The vehicle interior is illuminated with a warm color.

The well-being program is intended for short distances, long distances, at any time during the journey, while stationary, and preferably at cooler temperatures.

PowerNap program 

The PowerNap program supports a brief nap on the part of the driver and further vehicle occupants, as a result of which tiredness can be reduced, and the driver's condition can be increased.

This support is carried out through:

The music assigned to the specific phases is regarded as the lead function of the PowerNap program. Relaxing music and moderately activating music is played during the sleep onset phase and waking phase respectively by the audio player. No music is played during the sleep phase.

To secure the vehicle occupants and the vehicle, the electric parking brake is engaged, the doors are locked, and the windows, the panoramic sliding sunroof, and the roller blinds are closed.

During sleep onset, relaxing music is played, the seat is heated, and a discrete massage is performed. The interior temperature is adapted for sleep without a blanket, also with the aid of the stationary heater or stationary ventilation; fan noises are minimized, and the air is cleaned through ionization. The vehicle interior is illuminated in a warm color, and the switch and controls illumination and button symbol illumination are switched on and dimmed. The instrument cluster also remains activated.

During the sleep phase, the functions are extensively switched off or at least switched to lower settings. Climate control is continued, possibly with support by the stationary heater or stationary ventilation.

During the waking phase, the audio equipment plays moderately activating music, the air is cleaned and fragranced, and the seat is ventilated. The vehicle interior is illuminated in an activating color. An alarm clock can additionally be activated.

The PowerNap program is primarily designed for a short nap on the part of the driver. However, it can also be used during the journey by the front passenger or rear passengers. Different program prerequisites apply in this case, and the program run is adapted.

Function requirements 

IMPORTANT The electronic ignition lock control unit transmits the status of circuit 15 and information on the vehicle equipment to the head unit via the user interface CAN.

The CDI control unit or the ME-SFI [ME] control unit transmits the "Engine running" signal to the head unit via the drive train CAN, powertrain control unit, suspension FlexRay, electronic ignition lock control unit, and user interface CAN.

The Electronic Stability Program control unit transmits information on the vehicle speed to the head unit via the suspension FlexRay, electronic ignition lock control unit, and user interface CAN.

Function 

The individual programs of the ENERGIZING comfort control system can be selected, configured and started in the "Active Comfort" menu.

All possible programs (depending on vehicle equipment) are listed in the "Active Comfort" menu.

The menu can be operated from the following control points:

The steering wheel electronics reads in the control signals from the head unit multifunction steering wheel button group directly and sends them as of 01.06.2018 over the steering wheel CAN or up to 31.05.2018 over the steering LIN to the steering column tube module control unit. The steering column tube module control unit transmits the control signals to the head unit via the suspension FlexRay, electronic ignition lock control unit, and user interface CAN.

The Audio/COMAND control panel or the touchpad (with code 448 (Touchpad)) transmits the control signals to the head unit via the telematics CAN.

The head unit generates the corresponding image data and sends a switch-on request to the Audio/COMAND display via telematics CAN.

The head unit transfers the image data to the Audio/COMAND display via the HSVL line.

The head unit evaluates all incoming information, and activates the internal programs.

The head unit transmits the corresponding request for the respective program to the individual function's respective master control unit. The head unit transmits the corresponding request for the respective program to the control units connected to the interior CAN via the user interface CAN, electronic ignition lock control unit, and interior CAN. The head unit transmits the corresponding request for the respective program to the control units connected to the suspension FlexRay via the user interface CAN, electronic ignition lock control unit, and suspension FlexRay.

Individual function Equipment Control unit Connection to the vehicle's networking
Ionization Standard Climate control, control unit (N22/1) Interior CAN (CAN B)
Fragrancing Standard Climate control, control unit (N22/1) Interior CAN (CAN B)
Ambiance light Code 877 (Ambiance illumination) Ambiance illumination control unit (N162) Interior CAN (CAN B)
Seat ventilation Code 401 (Seat climate control for driver and front passenger) and code 275 (Memory package) Driver's seat control unit (N32/1), front passenger seat control unit (N32/2) Interior CAN (CAN B)
  Code 401 (Seat climate control for driver and front passenger) except code 275 (Memory package) Rear SAM control unit (N10/8) Interior CAN (CAN B)
Front seat heater Code 401 (Seat climate control for driver and front passenger) and code 275 (Memory package) or code 873 (Seat heater for driver and front passenger) and code 275 (Memory package) or code 902 (Seat heater Plus for driver and front passenger) Driver's seat control unit (N32/1), front passenger seat control unit (N32/2) Interior CAN (CAN B)
  Code 401 (Seat climate control for driver and front passenger) except code 275 (Memory package) or code 873 (Seat heater for driver and front passenger) except code 275 (Memory package) Rear SAM control unit (N10/8) Interior CAN (CAN B)
Rear seat heater Code 872 (Seat heater in rear passenger compartment) Rear SAM control unit (N10/8) Interior CAN (CAN B)
Armrest heater Code 906 (Front armrest heater) Left front door control unit (N69/1), right front door control unit (N69/2), rear SAM control unit (N10/8) Interior CAN (CAN B)
Steering wheel heater Code 443 (Steering wheel heater) Steering column tube module control unit (N80) Chassis FlexRay (Flex E)
Massage Code 399 (Front multicontour seats with massage function) Left front multicontour seat control unit (N32/15), right front multicontour seat control unit (N32/16) Interior CAN (CAN B)
Music Standard Head unit (A26/17) User interface CAN (CAN HMI)
Video Standard Head unit (A26/17) User interface CAN (CAN HMI)
Heating, ventilation Standard Climate control, control unit (N22/1) Interior CAN (CAN B)
Stationary heater Code 228 (Stationary heater) Stationary heater control unit (A6n1) Interior CAN (CAN B)
Switch and controls illumination and symbol illumination Standard Instrument cluster (A1) Interior CAN (CAN B)
Parking brake Standard Electronic Stability Program control unit (N30/4) Chassis FlexRay (Flex E)
Central locking Standard Electronic ignition lock control unit (N73) User interface CAN (CAN HMI)
Power window Standard Left front door control unit (N69/1), right front door control unit (N69/2) Interior CAN (CAN B)
Panoramic sliding sunroof Code 413 (Panoramic sliding sunroof) Panoramic sliding roof control unit (A98n1) Interior CAN (CAN B)
Roller blind Code 413 (panoramic sliding sunroof), code 540 (Electric roller sun blind for rear window) Panoramic sliding sunroof control unit (A98n1), rear SAM control unit (N10/8) Interior CAN (CAN B)

Starting an ENERGIZING comfort control program means that all involved individual functions are started (if selected in the configuration). In this case, the initial condition of the involved individual functions is stored, and always restored on completion of the active comfort program. The exception is if the settings of an individual function are changed by the individual function's individual control during the ENERGIZING comfort control program. In this case, this function also continues running as set beforehand subsequent to ENERGIZING comfort control (individual control is the "master").

  Electrical function schematic for ENERGIZING convenience control   PE82.90-P-2056-97DCA
  Overview of system components for ENERGIZING convenience control   GF82.90-P-9992FH