Owner's manual

Display messages Possible causes/consequences and M Solutions
PRE-SAFE
Inoperative See
Oper. Manual
G
Risk of injury
Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. air bags, remain available.
X
Visit a qualified specialist workshop immediately.
PRE-SAFE
Functions
Currently Limited
See Operator's
Manual
G
Risk of accident
PRE-SAFE
®
Brake is temporarily inoperative if:
R
the DISTRONIC PLUS cover in the radiator grill is dirty.
R
the sensors in the bumpers are dirty.
R
its function is impaired due to heavy rain or snow.
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
the system is outside the operating temperature range.
R
the on-board voltage is insufficient.
PRE-SAFE
®
Brake is operational again and the display message
disappears when:
R
the dirt (e.g. slush) drops away while the vehicle is in motion.
R
the system detects that the sensors are fully available again.
R
the system is within the operating temperature range.
If the display message continues to be displayed:
X
Clean the DISTRONIC PLUS cover in the radiator grill
(Y page 414).
X
Clean the bumpers (Y page 414).
X
Restart the engine.
X
Wait until the battery is sufficiently charged.
PRE-SAFE
Function Limited
See Oper. Manual
G
Risk of accident
PRE-SAFE
®
Brake is faulty. BAS PLUS or the distance warning
signal may also have failed.
X
Visit a qualified specialist workshop.
6
SRS Malfunction
Service Required
G
Risk of injury
There is a malfunction in the SRS (Supplemental Restraint
System). The 6 warning lamp also lights up in the instrument
cluster.
X
Visit a qualified specialist workshop.
346
Display messages
On-board computer and displays