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Environment Monitoring, Basic Function - GF54.65-S-1000A

Model All (Light transporter) 

With Code EZ5 (Active Parking Assist with reversing camera) 

Model All (Light transporter) 

With Code EZ6 (Parking package with 360-degree camera) 

Model All (Light transporter) 

With Code EZ7 (Active Parking Assist) 

Model All (Light transporter) 

With Code JB6 (Parking package with 360-degree camera) 

Model All (Light transporter) 

With Code JB7 (Parking Package with reversing camera) 

Overview 

This document contains information on:

General information 

The surround monitoring system scans the area around the vehicle with the aid of distance sensors in the front and rear bumpers.

Surround monitoring is switched on automatically during "Ignition ON". It can be switched off and on manually.

G16501401Courtesy of MERCEDES-BENZ USA

Illustration of the principle of surround monitoring 

Function requirements 

Function 

Surround monitoring is based on the ultrasound measurement method. The distance sensors transmit ultrasonic waves. The ultrasonic waves reflected by an obstacle are received again by the distance sensors.

When reversing, the areas in front of and behind the vehicle are monitored. During forward travel, the area in front of the vehicle is monitored. Side obstacles are detected when the vehicle is driving-by if they were detected first by the side sensors in the front and rear bumpers. Surround monitoring is in measuring mode at speeds below 10 km/h. When objects are detected, the driver is warned by the illumination of the respective warning segments in the central display and, at close range, by a warning tone. The vehicle must cover at least the distance of half of the vehicle length for side indication. The side warning is only issued if the steering movement is toward the obstacle. When the speed exceeds the limit speed of 12 km/h, the surround monitoring system switches back to standby mode.

If a trailer is detected (vehicles with trailer hitch) (electrical connection established between the vehicle and a trailer), the surround monitoring system is deactivated at the rear.

Functional restrictions 

The surround monitoring system does not recognize the following obstacles:

  Function schematics     
  Monitor surroundings, function schematic Model 420 with code EZ7 (Active Parking Assist) PE54.65-S-2500-97VRA
    Model 447 with code EZ7 (Active Parking Assist) with code XM7 (MOPF II) PE54.65-S-2500-97A
  Additional basic functions     
  Distance sensor, basic function Model all (Light transporter)
with code EZ7 (Active Parking Assist)
GF54.65-S-2001A
  Parking system control unit, basic function Model all (Light transporter)
with code EZ5 (Active Parking Assist with reversing camera)
Model all (Light transporter)
with code EZ6 (Parking package with 360-degree camera)
Model all (Light transporter)
with code EZ7 (Active Parking Assist)
Model all (Light transporter)
with code JB6 (Parking package with 360-degree camera)
Model all (Light transporter)
with code JB7 (Parking Package with reversing camera)
GF54.65-S-9890A 
  Detailed information     
  Parking system control unit, detailed information Model 420
with code EZ7 (Active Parking Assist)
GF54.65-S-0010A
  Component part descriptions     
  Parking system speaker, component description Model 420
with code EZ7 (Active Parking Assist)
GF54.65-S-5008VRA
  PARKTRONIC distance sensor component description Model 420
with code EZ7 (Active Parking Assist)
GF54.65-S-5012VRA
  Component description for reversing camera control unit Model 420
with code EZ7 (Active Parking Assist)
GF54.65-S-5030VRA