Mercedes-Benz C-Sedan 2015 Owners Manual - Manual (Page 261)

Display messages Possible causes/consequences and M M Solutions
Collision Preven‐ Collision Preven‐
tion Assist Plus tion Assist Plus
Inoperative Inoperative
COLLISION PREVENTION ASSIST PLUS is temporarily inoperative
due to a malfunction. Adaptive Brake Assist may also have failed.
X
Visit a qualified specialist workshop.
PRE-SAFE Inopera‐ PRE-SAFE Inopera‐
tive See Opera‐ tive See Opera‐
tor's Manual tor's Manual
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 PRE-SAFE Functions Functions
Currently Limited Currently Limited
See See Operator's Operator's Man‐ Man‐
ual ual
PRE‑SAFE ® PLUS or PRE‑SAFE ® Brake is temporarily inoperative.
Possible causes are:
R
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 sta-
tions or other sources of electromagnetic radiation.
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 mes-
sage disappears.
PRE‑SAFE
® PLUS and PRE‑SAFE ® Brake are operational again.
If the display message does not disappear:
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 174).
X Restart the engine.
PRE-SAFE PRE-SAFE Functions Functions
Limited See Opera‐ Limited See Opera‐
tor's Manual tor's Manual
PRE‑SAFE ® PLUS or PRE‑SAFE ® Brake is unavailable due to a mal-
function. BAS PLUS may also have failed.
X
Visit a qualified specialist workshop.
Display messages
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