S 600 (221.176) V12-5.5L Turbo (275.953) (2007)
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Sensors and Switches - Power and Ground Distribution: Technical Service Bulletins
Electrical - Overview Of On-Board Electrical Systems
Date: June 2006
Order No.: P-B-54.10/172
Supersedes:
Group: 54
SUBJECT:
MODEL 221
Brief Overview on on-board Electrical Systems
Due to the high current requirement when the ignition and telematics are on, the power consumption may be as high as 30 A. For this reason, the battery
should always be connected to a charger during a workshop visit (as per AR54.10-P-11275X).
The charging capacity of the charger must be at least 30 A.
The display of the on-board electrical system battery voltage can be read out in the instrument cluster (IC) as follows:
1.
Set the display in the IC to "Trip" and change to the "Trip counter" mode. Confirm with "OK" in the left multifunction steering wheel button group
(S110). "Reset odometer" appears in the display (picture 1).
2.
Press and hold down the "OK" button in the left multifunction steering wheel button group (S110) again (picture 2) while also pressing the "Pick
up phone" button in the right multifunction steering wheel button group (S011). Hold down both buttons for 5 seconds. "Vehicle data" appears in
the display.
3.
Confirm the "Vehicle data" menu by pressing the "OK" button in the left multifunction steering wheel button group (S110). The voltage of the
on-board electrical system battery UB is shown first in the display (picture 3).
