Mercedes-Benz SL-Class 2013 Owners Manual - Manual (Page 249)

Display messages Possible causes/consequences and M Solutions
PRE-SAFE
Function Currently
Limited See
Operator's Manual
PRE-SAFE ® Brake is deactivated or temporarily inoperative.
Possible causes are:
R function is impaired due to heavy rain or snow.
R the sensors in the radiator grill and the bumper are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R AMG vehicles: ESP ® is deactivated.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
When the causes stated above no longer apply, the display
message disappears.
PRE-SAFE
® Brake is operational again.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (
Y
page 175).
X Clean the sensors in the radiator grill and the bumper
(
Y
page 521).
X Restart the engine.
X AMG vehicles: reactivate ESP ® (
Y
page 77).
PRE-SAFE
Function Currently
Limited See
Operator's Manual
PRE-SAFE ® Brake is inoperative due to a malfunction. BAS PLUS
or the distance warning signal may also have failed.
X
Visit a qualified specialist workshop.
A
Malfunction
Service Required
The roll bars are defective.
G WARNING
The roll bars will then possibly not be extended in the event of an
accident.
There is an increased risk of injury.
X Visit a qualified specialist workshop immediately.
Display messages
247
On-boar
d
compu
ter
and
displa
ys
Z