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Driver Assistance Systems, Function - GF54.00-S-0002TRA

Model 447 

Except Code XM0 (Facelift) 

Model 448 

Driving Assistance Systems in general 

Driving assistance systems support the driver in various situations in accordance either actively or passively depending on their particular configuration In both cases, the Drive Assist systems contribute to driving safety. This helps to reduce the frequency of accidents and their consequences Ride comfort is also enhanced.

The following Drive Assist systems are available and they are described in separate documents:

Crosswind Assist 

The Crosswind Assist is integrated in the Electronic Stability Program (ESP) control unit (N30/4) The Crosswind Assist detects wind influences that act on the vehicle and issues visual signals to warn the driver The Electronic Stability Program (ESP) control unit regulates a one-sided brake intervention at the front and rear axle which counteracts the crosswind and the yaw motion of the vehicle.

Attention assistance system (With Code JW8 (ATTENTION ASSIST)) 

The attention assistance system is integrated in the Electronic Stability Program (ESP) control unit By evaluating steering patterns any onset of driver fatigue e.g. on long monotonous journeys on freeways and highways) can be detected.

If the evaluation indicates fatigue or an increasing lack of attention by the driver, the driver is prompted to take a break by means of visual and acoustic warnings.

CRUISE CONTROL (With Code JW8 (ATTENTION ASSIST) and with or without CODE ET4 (DISTRONIC PLUS)) 

The cruise control constantly adjusts the actual speed of the vehicle without operation of the accelerator pedal to the target speed set by the driver The vehicle is also automatically braked through active intervention by the brake system when driving down a hill to maintain the target speed.

IMPORTANT The driving assistance systems named below are based on camera or radar technology. People and objects such as e.g. vehicles and obstacles or traffic signs are registered on the basis of camera or radar technology. Depending on the particular requirements the respective driving assistance systems use the detection ranges of the DISTRONIC (DTR) control unit (A89) (model 447 8 or model 448 8) left rear Blind Spot Assist radar sensor (B161/3 right rear Blind Spot Assist radar sensor (B161/4) collision warning system radar sensor (B162) or multifunction camera (MFK) control unit (B84/8) as shown in the diagram below

G16501136Courtesy of MERCEDES-BENZ USA

Lane Keeping Assist (With Code JW5 (Lane Keeping Assist)) 

The Lane Keeping Assist detects any unintentional driving across lane markings and issues a haptic warning to the driver in certain situations by initiating vibrations on the steering wheel.

The Lane Keeping Assist evaluates the detection range of the front field-of-vision camera.

"COLLISION PREVENTION ASSIST" (With Code JA6 (COLLISION PREVENTION ASSIST)) 

The "COLLISION PREVENTION ASSIST" continuously checks the distance to the vehicle in front, warns the driver visually and acoustically of potential collisions (e.g. rear-end collision) with other vehicles, thereby helping to reduce the risk of accident considerably. In an imminent collision situation, the "COLLISION PREVENTION ASSIST" initiates autonomous partial braking.

For this purpose, the collision warning system evaluates the detection range of the mid-range radar in the detection range of the front long-range and mid-range radar.

DISTRONIC PLUS (With Code ET4 (DISTRONIC PLUS)) (model 447.8 or model 448.8) 

The DISTRONIC PLUS regulates the speed and distance relative to the vehicle in front in a vehicle speed range of v = 0 to 200 km/h and v = 200 to 0 km/h automatically according to the driver's request.

To do so, the DISTRONIC (DTR) control unit evaluates the detection range of the long-range radar in the detection range of the front long-range and mid-range radar.

Blind Spot Assist (With Code JA7 (Blind Spot Assist)) 

The Blind Spot Assist monitors the rear and side areas of the vehicle using short-range radar and, if necessary, informs the driver that an intentional lane change (turn signal light active) is not recommended at this time. In a broader sense, the Blind Spot Assist acts as an extension of the outside mirrors.

The Blind Spot Assist evaluates the detection range of the rear short-range radar.

BAS PRO (With Code ET4 (DISTRONIC PLUS)) (model 447.8 or model 448.8) 

BAS PRO supports the driver during a critical braking situation. The brake boost required for this is calculated according to the situation. In this way a threatened collision can be prevented or, at least, the consequences of the collision are mitigated.

BAS PRO evaluates the detection range of the long-range radar in the detection range of the front long-range and mid-range radar.

Traffic Sign Assist (With Code JA9 (Traffic Sign Assist)) (model 447.8 or model 448.8) 

Traffic Sign Assist detects the traffic signs on the route being traveled by the vehicle. It notifies the driver of signposted speed limits and prohibitions or their derestriction. It also issues both a visual and acoustic warning when entering a freeway or expressway opposite the specified direction of travel (wrong-way driver scenario).

The following traffic signs are registered and evaluated:

The Traffic Sign Assist evaluates the detection range of the front field-of-vision camera.

  Crosswind Assist function Model 447.6/7
except code JA6 (Active Brake Assist) except code JA7 (Blind Spot Assist) except code JW5 (Lane Keeping Assist) except code JW8 (ATTENTION ASSIST) except code MS1 (cruise control) Model 447.8
except code ET4 (Active Distance Assist DISTRONIC) except code JA6 (Active Brake Assist) except code JA7 (Blind Spot Assist) except code JA9 (Traffic Sign Assist) except code JW5 (Lane Keeping Assist) except code JW8 (ATTENTION ASSIST) except code MS1 (cruise control) Model 448.7
except code JA7 (Blind Spot Assist) except code JA9 (Traffic Sign Assist) except code MS1 (cruise control) Model 448.8
except code ET4 (Active Distance Assist
DISTRONIC) except code JA7 (Blind Spot Assist) except code JA9 (Traffic Sign Assist) except code JW5 (Lane Keeping Assist)
except code MS1 (cruise control)		 GF42.45-S-0004TRA
  Attention assist, function Model 447.6/7/8
with code JW8 (ATTENTION ASSIST)		 GF54.30-S-0009TRA
  Cruise control (CC), function Model 447 with code ET4 (Active Distance Assist DISTRONIC) except code MS1 (Cruise control) except code XM0 (Facelift) Model 447 with code MS1 (Cruise control) except code ET4 (Active Distance Assist DISTRONIC) except code XM0 (Facelift) Model 448
with code ET4 (Active Distance Assist DISTRONIC) except code MS1 (Cruise control)		 GF30.30-S-0001TRA
    Model 448 with code MS1 (Cruise control)
except code ET4 (Active Distance Assist DISTRONIC)		  
  Lane Keeping Assist, function Model 447.6/7/8 with code JW5 (Lane Keeping Assist) Model 448.8 with code JW5 (Lane Keeping Assist) GF54.71-S-0005TRA
  COLLISION PREVENTION ASSIST function Model 447.6/7/8
with code JA6 (Active Brake Assist)		 GF30.30-S-0010TRA
  DISTRONIC PLUS, function Model 447.8 with code ET4 (Active Distance Assist DISTRONIC
Model 448.8
with code ET4 (Active Distance Assist DISTRONIC)		 GF30.30-S-3300TRA
  Blind Spot Assist, function Model 447.6/7/8 with code JA7 (Blind Spot Assist) Model 448.8
with code JA7 (Blind Spot Assist)		 GF54.71-S-0003TRA
  BAS PRO function Model 447.8 with code ET4 (Active Distance Assist DISTRONIC) Model 448.8
with code ET4 (Active Distance Assist DISTRONIC)		 GF30.30-S-3320TRA
  Traffic Sign Assist, function Model 447.8 with code JA9 (Traffic Sign Assist) except code XM0 (Facelift) Model 448.8
with code JA9 (Traffic Sign Assist)		 GF54.30-S-0010TRA
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