Lighting - 'High Beam Assist Inoperative' Message Appears
High Beam Assist temporarily inoperative
2011 Mercedes Benz C 250 (204.052) (CANADA) V6-2.5L (272.921) Page 11
Topic number LI82.10-P-053439
Version 2
Design Group 82.10 Exterior lights
Date 06-12-2012
Validity MODEL 204.###, 212###, 207.###, 221.###, 215.###, 218.###, 166.### with SA code 608 (High Beam Assist) and not 513/476/Reason for change SA code restricted
Complaint:
When the High Beam Assist is activated a "High Beam Assist inoperative" message appears in the instrument cluster.
Switch-on conditions for High Beam Assist:
- High Beam Assist in instrument cluster menu "On"
- Multifunction switch set to high beam position
- Light sensor detects "Night"
Cause:
In isolated circumstances, it can happen that the multifunction camera fails to log into the data bus CAN in the temperature ranges (23 锟斤拷F to + 41 锟斤拷F
and 68 锟斤拷F to 86 锟斤拷F). A fault code entry is not made. Following a renewed ignition sequence and a change in component temperature, the system is
operational again.
Remedy:
Replace MFK and calibrate with the aid of the "calibration target for Night View Assist" special tool (W 000 589 01 20 00).
High Beam Assist temporarily inoperative
2011 Mercedes Benz C 250 (204.052) (CANADA) V6-2.5L (272.921) Page 11
Topic number LI82.10-P-053439
Version 2
Design Group 82.10 Exterior lights
Date 06-12-2012
Validity MODEL 204.###, 212###, 207.###, 221.###, 215.###, 218.###, 166.### with SA code 608 (High Beam Assist) and not 513/476/Reason for change SA code restricted
Complaint:
When the High Beam Assist is activated a "High Beam Assist inoperative" message appears in the instrument cluster.
Switch-on conditions for High Beam Assist:
- High Beam Assist in instrument cluster menu "On"
- Multifunction switch set to high beam position
- Light sensor detects "Night"
Cause:
In isolated circumstances, it can happen that the multifunction camera fails to log into the data bus CAN in the temperature ranges (23 锟斤拷F to + 41 锟斤拷F
and 68 锟斤拷F to 86 锟斤拷F). A fault code entry is not made. Following a renewed ignition sequence and a change in component temperature, the system is
operational again.
Remedy:
Replace MFK and calibrate with the aid of the "calibration target for Night View Assist" special tool (W 000 589 01 20 00).
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