Unlocking/Locking Manually - Mercedes-Benz 2011 SL550 Roadster Operator's Manual

Problem
45
The passenger front air
bag off indicator lamp
does not illuminate
and/or does not
remain illuminated with
the weight of a typical
12-month-old child in a
standard child restraint
or less on the
passenger seat.
G
Warning!
If the 45 indicator lamp does not
illuminate or remains out with the weight of a
typical 12-month-old child in a standard child
restraint or less on the passenger seat, do not
transport a child on the passenger seat until
the system has been repaired.

Unlocking/locking manually

Unlocking the vehicle
If you cannot unlock the vehicle with the
SmartKey or with KEYLESS-GO, unlock the
driver's door and the trunk using the
mechanical key.
The anti-theft alarm system will trigger when
you
unlock the driver's door or the trunk with
R
the mechanical key
and
open the driver's door or the trunk
R
To cancel the alarm, insert the SmartKey into
the starter switch.
Possible causes/consequences and M Solutions
The system is malfunctioning.
X
Make sure there is nothing between seat cushion and child seat
and check installation of the child seat.
X
Make sure no objects applying supplemental weight onto the
seat are present.
X
If the passenger front air bag off indicator lamp remains out,
have the system checked as soon as possible at an authorized
Mercedes-Benz Center. Do not transport a child on the
passenger seat until the system has been repaired.
X
Read and observe messages in the multifunction display and
follow corrective steps (
Unlocking/locking manually
Y page 226).
Removing the mechanical key
SmartKey
SmartKey with KEYLESS-GO
X
Move locking tab : in the direction of
arrow.
X
Slide mechanical key ; out of the housing.
267
Z