Blind Spot Monitor, function - GF54.71-P-4000SX
MODEL 216 with ENGINE 156, 273, 275 with CODE (233) Distronic Plus with CODE (234) Blind Spot Assist up to Model Year 8
MODEL 221 with ENGINE 156, 272, 273, 275, 642, 629 with CODE (233) Distronic Plus with CODE (234) Blind Spot Assist up to Model Year 8
Blind Spot Assist activated but not operating
Optical warning message - Object in blind spot (in the warning area)
The Blind Spot Assistant (also called Blind Spot Monitoring (BSM) is offered as of 08/2007 as special equipment with the code 234.
It assists the driver to carry out a lane change safely. In the process the Blind Spot Assistant supplies important information about the events in the rear and side area of the vehicle where the inside rearview mirror and the two outside mirrors do not offer adequate visibility (blind spots).
Function requirements
- "Circuit 61 ON" (engine running)
- "BSM_AVL" (Blind Spot Monitoring) coded in the central gateway control unit (N93)
- Radar sensor system not deactivated
- "Blind Spot Assist" switched on via the menu in the instrument cluster (A1)
- DIRECT SELECT gear selector switch (S16/13) in "D" position
- Vehicle speed > 30 km/h
Switching On and Off
The Blind Spot Assistant is switched on and off in the "Assistance" menu of the instrument cluster (A1) via the left or right multifunction steering wheel button group (S110, S111).
When the engine is running and the Blind Spot Monitor is switched on the yellow triangles in the outside mirrors light up to a speed of 30 km/h.
Warning range
The warning range in which the detected object is displayed includes approx. 3 m next to and behind the vehicle.
DISPLAY
The displays of Blind Spot Assistants consist of a triangle in the respective outside mirror. The triangles light up yellow when the Blind Spot Assistant is activated but not in operation (speed <30 km/h). The triangles light up or flash red if an object in the warning range is detected.
Activation
Activation is not necessary when the Blind Spot Assistant is switched on. The Blind Spot Assistant is activated automatically when the engine is started (yellow triangles light up). Objects which are located in the warning range are however only displayed as of a speed of >30 km/h (yellow triangle Off).
Deactivation
Deactivation of the Blind Spot Monitor is not possible.
However, if the vehicle is driven at slower than 25 km/h, the red triangles are deactivated and only the yellow triangles still light up. In other words, no more objects which are located in the warning range are displayed.
Function
If an object is located in the warning range at a speed of >30 km/h, the driver is warned by a red triangle lighting up in the respective outside mirror. If the driver nevertheless attempts to initiate a lane change and signals this by operating the turn signal indicator, then a single acoustic collision warning take place and the red triangle starts to flash. If the object leaves the warning range, the red triangle goes out again.
Trailer operation (on model 221)
When a trailer is hitched to the vehicle the rear area of the vehicle can no longer be monitored by Blind Spot Monitoring. The warning message "Blind Spot Monitoring currently not available, see operator's manual" is displayed in the instrument cluster and the function indicators of Blind Spot Monitoring are switched off.
The radar sensors control unit (SGR) (N62/1) detects a hitched trailer by a signal from the trailer recognition control unit (N28/1).
| Component description for radar sensors control unit | N62/1 | GF30.30-P-3301SX | |
| Bumper radar sensors, component description | A86/1b1-4, A86/2b1-4 | GF30.30-P-3302SX |