MERCEDES-BENZ S-CLASS SALOON LONG 2022 Owners Manual

Display messages
Possible causes/consequences and P Solutions 
Stop the vehicle immediately in accordance with the tr aPc conditions. 
Make sure that no objects are trapped under the front passenger seat. 
Check the status of automatic front passenger airbag actuation (  pag
e 59).
If necessary, consult a q
ualiNed specialist workshop immediately.
PRE-SAFE inoperative See
Owner's Manual *
The PRE!

Display messages
Possible causes/consequences and P Solutions

Display messages
Possible causes/consequences and P Solutions
The key battery is weak or discharged. 
Check the battery using the indicator lamp (  pag e 89). 
Replace the key battery, if necessary ( pag
e 91).

Lights
Display messages
Possible causes/consequences and P Solutions
:
Left low beam (e
xample)* The corresponding light source is defective. 
Drive on carefully. 
Consult a qualiNed specialist workshop immediately.
% LED light sources: the display message for the corresponding light appears only when all the light-emitting diodes
in t

he light are faulty.
: Malfunction See Owner's
Manual * The exterior lighting is malfunctioning. 
Consult a q
ualiNed specialist workshop.
* Vehicles with a trailer hitch: a fuse ma
y have blown. 
Stop the vehicle in accordance with the tr
aPc conditions. 
Check the fuses and replace them if necessary (  pag
e 463).
:
Automatic driving lights
inoperative * The light sensor for automatic driving lights is malfunctioning. 
Consult a q
ualiNed specialist workshop. Display messages and warning/indicator lamps
511

Display messages
Possible causes/consequences and P Solutions
:
Active Light System inoper-
ative * The active headlamps are malfunctioning. 
Consult a qualiNed specialist workshop.
:
Switch on headlamps * You are driving without low-beam headlamps. 
Turn the light switch to the L or X position.
: * You are leaving the vehicle and the lights are still switched on. 
Turn the light switch to the X position.
DIGITAL LIGHT Functions
limited * The DIGITAL LIGHT system is malfunctioning. The lighting system will continue to work even without the functions of
t
he DIGITAL LIGHT system. 
Consult a q
ualiNed specialist workshop.
MULTIBEAM LED Functions
limited * The MULTIBEAM LED system is malfunctioning. The lighting system will continue to work, but without the functions of
t
he MULTIBEAM LED system. 
Consult a q
ualiNed specialist workshop.512
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
Check low beam setting
(left/right-side traffic) * The type of tr
aPc has been selected manually. 
Check the setting and change it manually if necessary (  pag
e 179).
Low beam setting (left/
right-side traffic) Manual
adjustment only * The automatic headlamp conversion for
les-hand/r
ight-hand traPc has malfunctioned. 
Change the headlamps over manually (  pag
e 179).
Adaptive Highbeam Assist
Plus currently unavailable
See Owner's Manual * Adaptive Highbeam Assist Plus is temporarily unavailable.
The sy
stem limits have been reached (  page 177).
Once the cause of the problem is no longer present, the system will be available again. The Adaptive Highbeam
Assist Plus available again display message will appear. 
Drive on 
Operate the high beam manually until Adaptive High Beam Assist Plus is available again.
Adaptive Highbeam Assist
Plus inoperative * Adaptive Highbeam Assist Plus is malfunctioning. 
Drive on
or 
Stop the vehicle in accordance with the tr
aPc conditions and restart the vehicle. 
If the display message does not disappear: consult a q ualiNed specialist workshop. 
Until then, operate the high beam manually. Display messages and warning/indicator lamps
513

Display messages
Possible causes/consequences and P Solutions
Hazard warning lamp sys-
tem Malfunction * The hazard warning lamp switch is malfunctioning. 
Consult a qualiNed specialist workshop.Climate control
Display messages
Possible causes/consequences and P Solutions
;
inoperative See Owner's
Man. * The stationary heater is temporarily malfunctioning. 
When the vehicle is stationary on a level surface and the engine has cooled down, make up to four attempts to
switc

h on the stationary heater, waiting several minutes between each attempt. 
If the stationary heater does not switch on, consult a q
ualiNed specialist workshop.
% The stationary heater cannot be activated if the outside temperature is above 15°C.
; Currently unavailable Bat-
tery low * The on-board electrical system voltage is too low.
The s
tationary heater has switched itself oM. 
Drive an extended distance until the battery has reached a suPcient c
harge level again.514
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and P Solutions
;
Currently unavailable Refuel * There is too little fuel in the fuel tank. The stationary heater cannot be switched on. 
Refuel the vehicle.
;
Currently unavailable High-
voltage battery charging
incomplete. * The high-voltage battery is charging. Pre-entry climate control cannot be switched on. 
Wait until the charging process has achieved a minimum charge.
;
Currently unavailable
Charge high-voltage battery * The charge of the high-voltage battery is too low. Pre-entry climate control cannot be switched on. 
Charge the high-voltage battery ( pag e 240). Display messages and warning/indicator lamps
515

Display messages
Possible causes/consequences and P Solutions
;
Pre-entry climate control
via key available again
after starting vehicle * You have attempted to switch on pre-entry climate control more than twice with the vehicle switched
oM.
Start the vehicle for ten seconds.
Pr e-entry climate control is operational again.
; Pre-entry climate control
via key currently unavaila-
ble. High-voltage battery
low * The charge of the high-voltage battery is too low. Pre-entry climate control cannot be switched on. 
Charge the high-voltage battery ( pag
e 240).
When the high-voltage battery is suPciently charged, pre-entry climate control will be operational again. 516
Display messages and warning/indicator lamps

Hybrid system
Display messages
Possible causes/consequences and P Solutions
u
Towing not permitted See
Owner's Manual * The drive system is malfunctioning. 
Have the vehicle transported only using a transporter or trailer ( pag e 457).