Table of contents for NECK-PRO head restraints, function description - GF91.16-P-0997T
MODELS 211.0 /2 as of 1.6.05
| NECK-PRO head restraints, function | GF91.16-P-0003T | ||
|---|---|---|---|
| NECK-PRO head restraints, networking of components | GF91.16-P-0003-01T | ||
| NECK-PRO head restraints, location of components | GF91.16-P-0003-02T | ||
| Overview of system components, NECK-PRO head restraints | GF91.16-P-9995T |
NECK-PRO head restraint triggering device, component description - GF91.16-P-2020T
MODELS 211.0 /2 as of 1.6.05
Shown on model 211.0
Location
The NECK-PRO head restraint triggering device is located behind the electronic selector lever module control unit on the center tunnel.
Identifying NECK-PRO Head Restraint Triggering Device. Scheme 1
Task
The NECK-PRO head restraint triggering device activates the driver NECK-PRO head restraint solenoid (Y24/12) and the front passenger NECK-PRO head restraint solenoid (Y24/13) in the event of a rear end collision.
Design
The NECK-PRO head restraint triggering device contains a sensor that registers the acceleration of the vehicle in the event of a rear end collision.
Function
The integral sensor registers the acceleration of the vehicle in the event of a rear end collision and triggers the solenoids when a defined limit value is exceeded.
NECK-PRO head restraint, component description - GF91.16-P-2030T
MODELS 211.0 /2 as of 1.6.05
Shown on model 211.0
Location
The NECK-PRO head restraints are located on the driver and front passenger seat.
Identifying NECK-PRO Head Restraint And Driver NECK-PRO Head Restraint Solenoid. Scheme 2
Function diagram of the NECK-PRO head restraint
Identifying NECK-PRO Head Restraint Position. Scheme 3
Task
The NECK-PRO head restraints reduce the distance between the driver's and front passenger's head and the head restraint.
Design
The NECK-PRO head restraints include
- the driver NECK-PRO head restraint solenoid (Y24/12)
- the front passenger NECK-PRO head restraint solenoid (Y24/13)
- as well as the complete triggering mechanism.
Function
The impact plate of the NECK-PRO head restraints is held in the rest position by a locking lever.
In the event of a rear end collision, the magnetic force of attraction that holds the locking lever in position is neutralized by energizing the solenoids.
Thanks to a pre-compressed spring, the impact plate moves forward and at the same time upward. This reduces the distance between the head and the head restraint.
The integrated crash locking devices prevent the impact plate from recoiling, caused by the driver's head being thrown back.
The solenoids are actuated for at least 15 ms to ensure that the NECK-PRO head restraints are triggered.
Resetting of the NECK-PRO head restraints
If during an accident the NECK-PRO head restraints were triggered, the NECK-PRO head restraints can be reset using a reset tool.
Overview of system components, NECK-PRO head restraints - GF91.16-P-9995T
MODELS 211.0 /2 as of 1.6.05
| NECK-PRO head restraint, component description | GF91.16-P-2030T | ||
|---|---|---|---|
| NECK-PRO head restraints triggering device, component description | N139 | GF91.16-P-2020T | |
| NECK-PRO head restraints, table of contents for function description | GF91.16-P-0997T |
Function description contents dynamic seat - GF91.25-P-0998T
MODELS 211.0 /2 /6 with CODE (433) Left dynamic seat, incl. multicontour seat with CODE (434) Right dynamic seat, incl. multicontour seat
| Dynamic seat, function | GF91.25-P-0002T | ||
|---|---|---|---|
| Manual filling/exhausting of the air cushions at the dynamic seat, function | GF91.25-P-2011T | ||
| Dynamic lumbar support via pulse switch at the dynamic seat, function | GF91.25-P-2012T | ||
| Dynamic lateral support at the dynamic seat, function | GF91.25-P-2013T | ||
| Position storage of the dynamic seat with memory, function | GF91.25-P-2014T | ||
| Overview of system components, dynamic seat location/task/design/function | GF91.25-P-9998T |
Overview of system components, dynamic seat, location/task/design/function - GF91.25-P-9998T
MODELS 211.0 /2 /6 with CODE (433) Left dynamic seat, incl. multicontour seat with CODE (434) Right dynamic seat, incl. multicontour seat
| Dynamic seat control unit, location/task | GF91.25-P-2105T | ||
|---|---|---|---|
| Dynamic seat switch, location/task | GF91.25-P-2110T | ||
| Pneumatic pump for dynamic seat control, location/task | GF91.25-P-2115T | ||
| Front seat adjustment switch group, location/design/function | With memory package (driver seat, steering column, mirror) code 275a, with electrically adjustable front passenger seat memory code 242b. | GF91.29-P-2100TA | |
| Function description contents, dynamic seat | GF91.25-P-0998T |
Electric seat adjustment function description (ESV) table of contents - GF91.29-P-0998T
MODEL 211.0 /2 /6 with CODE (275) Memory package (driver seat, steering column, mirrors) with CODE (242) Electrically adjustable front passenger seat with memory
| Electric seat adjustment (ESA) function | GF91.29-P-0004T | ||
|---|---|---|---|
| Seat adjustment, function | GF91.29-P-2005T | ||
| Store seat position, function | GF91.29-P-2004T | ||
| Call up stored seat position, function | GF91.29-P-2003T | ||
| Seat adjustment collision avoidance, function | Model 211.0 /2, collision avoidance with rear seat. | GF91.29-P-2010T | |
| Easy entry/exit feature driver seat, function | With code (275) Memory package (driver seat, steering column, mirrors). | GF91.29-P-2014T | |
| Code-related storage block selection | Up to 30.5.05 With code (275) Memory package (driver seat, steering column, mirrors). | GF91.29-P-3004T | |
| Blocking detection, function | GF91.29-P-3007T | ||
| Seat adjusting motors position measurement function | GF91.29-P-4000T | ||
| Summary, electrical seat adjustment (ESV) system component, location/task/design/function | GF91.29-P-9998T |
Electronic seat ventilation function description, table of contents - GF91.30-P-0997T
MODELS 211.0 /2 /6 with CODE (401a) Front luxury seat, incl. heated seat and seat ventilation
| Electronic seat ventilation function | GF91.30-P-0002T | ||
|---|---|---|---|
| Electric seat ventilation, networking of components | GF91.30-P-0002-01T | ||
| Ventilation mode function | GF91.30-P-2005T | ||
| Stop ventilation mode function | GF91.30-P-2006T | ||
| System component overview, seat ventilation, location/task/design/function | GF91.30-P-9997T |
Heated seats (SIH) function description table of contents - GF91.30-P-0998T
MODELS 211.0 /2 with CODE (401) Front deluxe seats, incl. seat heating and seat ventilation with CODE (872) Electrically heated left and right rear seats with CODE (873) Heated left and right front seats
| Heated seats (HS) function | GF91.30-P-0003T | ||
|---|---|---|---|
| Heated seats (HS), networking of components | GF91.30-P-0003-01T | ||
| Heated seats (SIH) location of components | GF91.30-P-0003-02T | ||
| Switch on seat heater, function | GF91.30-P-2000T | ||
| Switch off seat heater, function | GF91.30-P-2001T | ||
| Switch over seat heater, function | GF91.30-P-2002T | ||
| Overview of system components, heated seats (HS) location/task/design/function | GF91.30-P-9998T |
System component overview, seat ventilation, location/task/design/function - GF91.30-P-9997T
MODELS 211.0 /2 /6 with CODE (401a) Front luxury seat, incl. heated seat and seat ventilation
| Heated seats/seat ventilation switch location/task | GF91.30-P-3004T | ||
|---|---|---|---|
| Front seat ventilation motors, location/task/design/function | GF91.30-P-3100T | ||
| Seat ventilation blower regulator, location/task/design/function | GF91.30-P-3102T | ||
| Heated seats/seat ventilation control unit, location/task | GF91.30-P-3005T | ||
| Upper control panel control unit, location/task/design/function | Models 211.0 /6 | GF54.21-P-4105T | |
| Model 211.2 | GF54.21-P-4105TS | ||
| Electronic ignition/starter switch control unit, location/purpose | GF80.57-P-4120T | ||
| Electronic seat ventilation function description, table of contents | GF91.30-P-0997T |
Overview of system components for seat heaters (SIH) location/task/design/function - GF91.30-P-9998T
MODEL 211.0 /2 with CODE (401) Front deluxe seats, incl. seat heating and seat ventilation with CODE (872) Electrically heated left and right rear seats with CODE (873) Heated left and right front seats
| Heated seats/seat ventilation switch location/task | On vehicles with code (873) Heated left and right front seats or with code (401) Front deluxe seats, incl. seat heating and seat ventilation | GF91.30-P-3004T | |
|---|---|---|---|
| Heated rear seat switch, location/task | For vehicles with code (872) Electrically heated left and right rear seats | GF91.30-P-3006T | |
| Upper control panel control unit, location/task/design/function | Model 211.0 | GF54.21-P-4105T | |
| Model 211.2 | GF54.21-P-4105TS | ||
| Heated seats/seat ventilation control unit, location/task | In vehicles with code (401) Front comfort seats, including seat heater and with code (872) Electrically heated left and right rear seats or in vehicles up to 31.5.05 with code (873) Heated left and right front seats | GF91.30-P-3005T | |
| Front passenger-side SAM control unit with fuse and relay module, location/task/design | On vehicles as of 1.6.05 with code (873) Heated left and right front seats and without code (401) Front comfort seats, incl. seat heating and seat ventilation and without code (872) Electrically heated left and right rear seats | GF54.21-P-4111T | |
| Electronic ignition switch control unit, location/task | GF80.57-P-4120T | ||
| Door control unit rear, location/task/function | GF72.29-P-4117T | ||
| Seat heater (SIH) function description table of contents | GF91.30-P-0998T |
Table of contents: Function description of supplemental restraint system (SRS) - GF91.60-P-0999TZ
MODEL 211.0 /2
| Supplemental restraint system (SRS), function | GF91.60-P-0002T | ||
|---|---|---|---|
| Supplemental restraint system (SRS), location of components | GF91.60-P-0002-01T | ||
| Supplemental restraint system (SRS), component networking | GF91.60-P-0002-02T | ||
| Supplemental restraint system (SRS), block diagram | GF91.60-P-0002-03T | ||
| Front passenger seat occupied recognition sensor, function | Without code (494) USA version and as from 1.6.05 with code (U18) Automatic child seat recognition (ACSR [AKSE]) | GF91.60-P-1100T | |
| Up to 18.2.04 with code (494) USA version and up to 31.5.05 without code (494) USA version and as from 1.6.05 with code (U18) Automatic child seat recognition (ACSR [AKSE]) | GF91.60-P-1100TA | ||
| As of 19.2.04 with CODE (494) USA version | GF91.60-P-1100TB | ||
| Rear end collision, function | GF91.60-P-2004T | ||
| Side impact, function | GF91.60-P-2005T | ||
| Head-on collision, function | GF91.60-P-2006T | ||
| Rollover, function | GF91.60-P-2007T | ||
| Overview of supplemental restraint system (SRS) system components | GF91.60-P-9998T |
Driver/front passenger-side frontal acceleration sensor, component description - GF91.60-P-4033T
MODELS 211.0/ 2
Shown on model 211.0
Location
The frontal acceleration sensors are located on the front module.
Scheme 4
Task
- The frontal acceleration sensor determine the acceleration value of the vehicle front for the left or the right side of the vehicle. The restraint systems control unit (N2/7) uses these values to decide, whether or not the emergency tensioning retractors or the airbags are triggered. In the event of a failure of the frontal acceleration sensor, the system continues to evaluate the signal of the frontal acceleration sensor that is still working.
- After a successful self-test of the frontal acceleration sensor, the success is confirmed by transmitting a signal to the restraint systems control unit.
- If the self-test fails four times, a defective frontal acceleration sensor is signaled.
- Upon request of the restraint systems control unit, the measuring range and the sensitivity of the frontal acceleration sensors are transmitted, and it is checked whether they match the programmed equipment. The production data can be output via STAR DIAGNOSIS.
- The acceleration values are transmitted periodically as a digital value.
Sidebag sensor, component description - GF91.60-P-4034T
MODELS 211.0/ 2
Shown on model 211.0
Location
The sidebag and windowbag sensors are mounted to the front side of the seat crossmember below the driver or front passenger seat, each at the level of the B-pillar.
Identifying Driver/Front Passenger Sidebag And Windowbag Sensor. Scheme 5
Task
- The sidebag and windowbag sensors determine the acceleration values, which occur in the area of the B-pillar of the left or right side of the vehicle, in order to recognize a side impact early on.
- After a successful self-test, the success is confirmed by the sidebag and windowbag sensor by transmitting a signal to the restraint systems control unit (N2/7).
- If the self-test fails four times, a defective sidebag and windowbag sensor is signaled.
- Upon request of the restraint systems control unit, the measuring range and the sensitivity of the sidebag and windowbag sensor are transmitted, and it is checked whether they match the programmed equipment. The production data can be output via STAR DIAGNOSIS.
- The acceleration values are transmitted periodically as a digital value.
Seat occupied recognition with automatic child seat recognition, component description - GF91.60-P-4035T
MODELS 211.0 /2 up to 18.2.04 with CODE (494) USA version
MODELS 211.0 /2 up to 31.5.05 except CODE (494) USA version
MODELS 211.0 /2 as of 1.6.05 with CODE (U18) Automatic child seat recognition (ACSR)
Location
The seat occupied and automatic child seat recognition is integrated in the seat cushion of the front passenger seat.
Identifying Front Passenger Seat Occupied And Child Seat Recognition Sensor. Scheme 6
Tasks
The seat occupied and automatic child seat recognition determines and recognizes a child seat with an installed transponder and its direction of installation. Moreover, the seat occupied and automatic child seat recognition can recognize, whether or not the front passenger seat is occupied by a person and can decide, whether the person is heavy or lightweight. With the aid of the weight classification of the front passenger, the system decides which restraint systems are necessary to be triggered.
As of 1.6.05 the weight classification of the front passenger is omitted
Function
Child seat recognition
The functionality of the automatic child seat recognition is only given where a DaimlerChrysler approved and control unit coded child seat is used.
This child seat must be equipped with two transponders (resonators), which are located in its base on the left and right.
When a child seat is in position, the signals, which the electronic analysis system sends via the transmitting antennas in the sensor mat, are changed by the resonators located in the child seat. The signals are picked up by the respective receiving antennae in the sensor mat and sent to the electronic analysis system. The electronic analysis system evaluates the signals and signals to the restraint systems control unit (N2/7), whether or not a child seat is installed, whether the child seat was positioned incorrectly, or whether it was installed forward-facing or rear-facing.
Seat occupied recognition (up to 31.5.05)
If the front passenger seat is occupied by a person, the pressure load of the seat area increases. This pressure load is sensed by the integrated force sensing resistors in the seat cushion and allocated to the corresponding weight classification. Depending upon the weight classification, a signal is transmitted to the restraint systems control unit and evaluated by the system. This helps to decide which restraint systems are necessary to be triggered.
Weight classification of the front passenger
Lightweight person: Triggering the first ignition stage
Heavy person: Triggering the first and second ignition stage
Seat occupied recognition (as of 1.6.05)
If the front passenger seat is occupied by a person, the pressure load of the seat area increases. This pressure load is recognized by the force sensing resistors integrated in the seat cushions. This helps to decide which restraint systems are necessary to be triggered.
WSS sensor (Weight Sensing System), component description - GF91.60-P-4036T
MODEL 211.0 /2 as of 19.2.04, 219.3 as of 1.7.06 with CODE (494) USA version
Identifying Weight Sensing System Sensor Components. Scheme 7
Shown on model 211.0
Location
The WSS sensors are located at the seat frame of the front passenger seat.
Task
The WSS sensors weigh the weight of a person or register whether a child seat is mounted.
The measured or registered values are transmitted to the WSS (Weight Sensing System) control unit (N2/13) and used to trigger the supplemental restraint system (SRS) and evaluated.
Driver airbag, component description - GF91.60-P-4037T
MODELS 211.0/ 2
Location
The driver airbag and the associated squibs are installed below the steering wheel cover.
Identifying Driver Airbag Ignition Squib 1 And Squib 2. Scheme 8
Task
If a head-on collision occurs, the driver is protected against injuries by the driver airbag. The driver airbag is designed in two stages and is started by the squibs, and thus its deployment can be controlled.
Front passenger airbag, component description - GF91.60-P-4038T
MODELS 211.0/ 2
Location
The front passenger airbag and the associated squibs are located in the instrument panel above the glove box.
Identifying Front Passenger Airbag Squib 1 And Squib 2. Scheme 9
Task
If a head-on collision occurs, the front passenger is protected against injuries by the front passenger airbag. The front passenger airbag is designed in two stages and is started by the squibs, and thus its deployment can be controlled.
Driver/front passenger sidebag, component description - GF91.60-P-4039T
Location
The driver sidebag with the driver sidebag squib is installed on the side in the driver seat backrest, and the front passenger sidebag with the front passenger sidebag squib is installed on the side in the front passenger seat backrest.
Scheme 10
Task
The sidebag protects the driver or front passenger from upper body and head injuries in the event of a side-impact collision affecting the door and B-pillar areas.
Rear sidebag, component description - GF91.60-P-4040T
MODELS 211.0 /2 with CODE (293) Left and right rear sidebag
Shown on model 211.0
Location
The rear side bags and the associated squibs are each installed behind the door lining of the rear doors.
Scheme 11
Task
The rear side bags protect the rear passengers from injury in the event of a side impact or a rollover around the longitudinal axis of the vehicle in the area of the rear door, the B-pillar, and the C-pillar.
Windowbag, component description - GF91.60-P-4041T
MODELS 211.0/ 2
Shown on model 211.0
Scheme 12
Location
The windowbag is installed along the left and right roof frame below the headliner. The associated squib is accommodated in each case behind the cover at the left and right A-pillar.
Task
The windowbag protects the head area from glass splinters and penetrating objects and reduces the head acceleration forces that occur.
Front emergency tensioning retractor, component description - GF91.60-P-4042T
MODELS 211.0/ 2
Shown on model 211.0
Location
The front emergency tensioning retractors with the associated squibs are located in the particular automatic belt retractor below the cover at the B-pillar on the left and right side of the vehicle above the crossmember.
Scheme 13
Task
The front emergency tensioning retractors remove the seat belt slack in the event of a head-on collision or a rear end collision and prevent the film reel effect of the driver and front passenger seat belt from occurring. The close-fitting seat belt means that vehicle occupants are exposed to the deceleration forces acting on the body at an earlier stage.
Rear emergency tensioning retractor, component description - GF91.60-P-4043T
MODELS 211.0/ 2
Shown on model 211.0
Scheme 14
Location
The rear emergency tensioning retractors with the associated squibs are each located in the particular automatic belt retractor below the cover at the C-pillar on the left and right side of the vehicle.
Task
The emergency tensioning retractors remove the seat belt slack in the event of a head-on collision or a rear end collision and prevent the film reel effect of the rear seat belts from occurring. The close-fitting seat belt means that vehicle occupants are exposed to the deceleration forces acting on the body at an earlier stage.
Driver/front passenger belt force limiter, component description - GF91.60-P-4044T
MODEL 211.0 /2 up to 31.5.06 except CODE (494) USA version except CODE (498) Japan version
MODEL 211.0 /2 up to 30.6.06 with CODE (494) USA version with CODE (498) Japan version
Shown on model 211.0
Identifying Driver/Front Passenger Belt Force Limiter. Scheme 15
Location
The belt force limiters are each located in the automatic belt retractor below the cover at the B-pillar on the left and right side of the vehicle above the crossmember.
Task
The belt force limiters are only used when the second stage of the driver airbag or the front passenger airbag is ignited in the event of a severe head-on collision. The belt force limiters are each activated for the driver or front passenger, and their purpose is to prevent injuries that are the result of excessive restraint forces of the tensioned seat belt.
Seat belt buckle switch, component description - GF91.60-P-4045T
MODELS 211.0/ 2
Location
The seat belt buckle switches are integrated in the seat belt buckle of the driver or in the seat belt buckle of the front passenger.
Identifying Driver/Front Passenger Seat Belt Buckle Restraint System Switch. Scheme 16
Task
The seat belt buckle switches monitor whether the seat belts on the driver seat or front passenger seat are fastened and supply the corresponding signal for the output of the seat belt reminder warning in the instrument cluster (A1).
WSS (Weight Sensing System) control unit, component description - GF91.60-P-4046T
MODEL 211.0 /2 as of 19.2.04, 219.3 as of 1.7.06 with CODE (494) USA version
Shown on model 211.0
Location
The WSS control unit is mounted to the front passenger seat frame.
Identifying Weight Sensing System Control Unit. Scheme 17
task
- The WSS control unit determines the weight of a person or a mounted child seat on the front passenger seat using the WSS sensors (B48/11, B48/12, B48/13, and B48/14), which are fastened to the seat frame. The measured values are used to classify the weight, and they are provided to the restraint systems control unit (N2/7) for exact control of the airbag stages.
- Evaluation and voltage supply of the WSS sensors
- Making the weight classification available via the Controller Area Network bus class B (interior) (CAN-B).
- Self-test of the WSS control unit and the WSS sensors. In the event of a defect, it is entered in the fault memory.
Overview of supplemental restraint system (SRS) system components - GF91.60-P-9998T
MODEL 211.0 /2
| Front emergency tensioning retractor, location/task/design/function | Up to 31.5.06 (without code (494) USA version or without code (498) Japan version) or up to 30.6.06 (only for code (494) USA version or only for code (498) Japan version) | GF91.40-P-4000T | |
|---|---|---|---|
| Driver airbag component description | GF91.60-P-4037T | ||
| Front passenger airbag component description | GF91.60-P-4038T | ||
| Driver/passenger sidebag, component description | GF91.60-P-4039T | ||
| Rear sidebag component description | With code (293) Left and right rear sidebag | GF91.60-P-4040T | |
| Windowbag component description | GF91.60-P-4041T | ||
| Rear emergency tensioning retractor component description | GF91.60-P-4043T | ||
| Driver/front passenger belt force limiter, component description | Up to 31.5.06 (without code (494) USA version or without code (498) Japan version) or up to 30.6.06 (only for code (494) USA version or only for code (498) Japan version) | GF91.60-P-4044T | |
| Driver/front passenger buckle emergency tensioning retractor, component description | As from 1.6.06 (without code (494) USA version or without code (498) Japan version) or as from 1.7.06 (only for code (494) USA version or only for code (498) Japan version) | GF91.60-P-4052T | |
| Sidebag sensor component description | A53/1, A54/1 | GF91.60-P-4034T | |
| Front passenger seat occupied recognition sensor, component description | B41/1 Without code (494) USA version and as from 1.6.05 without code (U18) Automatic child seat recognition (ACSR [AKSE]) | GF91.60-P-4110T | |
| Seat occupied recognition with automatic child seat recognition, component description | B48 Up to 18.2.04 with code (494) USA version, up to 31.5.05 without code (494) USA version, as from 1.6.05 with code (U18) Automatic child seat recognition (ACSR [AKSE]) | GF91.60-P-4035T | |
| Driver-side/front passenger-side frontal acceleration sensor, component description | B48/1, B48/2 | GF91.60-P-4033T | |
| WSS sensor (Weight Sensing System), component description | B48/11, B48/12, B48/13, B48/14 as of 19.2.04 with code (494) USA version | GF91.60-P-4036T | |
| Supplemental restraint systems control unit, location/task/design | N2/7 | GF91.60-P-4018T | |
| WSS (Weight Sensing System) control unit, component description | N2/13 as of 19.2.04 with code (494) USA version | GF91.60-P-4046T | |
| Upper control panel control unit, location / task / design / function | N72/1 | ||
| Model 211.0 | GF54.21-P-4105T | ||
| Model 211.2 | GF54.21-P-4105TS | ||
| Seat belt buckle switch, component description | S68/3, S68/4 | GF91.60-P-4045T | |
| Table of contents: Function description of supplemental restraint system (SRS) | GF91.60-P-0999TZ |