Displa
ymessages Possible causes/consequences and
M Solutions
6
Re
ar centre mal‐ function Consult
workshop G
Risk of in
jury
SRS has malfunctioned at the rear centre. The 6warning lamp
als olights up in th einstrument cluster.
X Visi taqualified specialist workshop. 6
Left
windowbag mal‐
function Consult
workshop orR
ight windowba
gmalfunc‐ tion Consult work‐
shop G
Ris
kofi njury
There is amalfunction in the left-han dand/or right-han dwindow-
bag. The 6warnin glamp also lights up in the instrumen tclus-
ter.
X Visit aqualified specialist workshop. Lights
i Display messages about LEDs:
This display message will only appear if all LEDs have failed. Displa
ymessages Possible causes/consequences and
M Solutions
b
Le
ft cornering light or
Right cor‐ nering light Th
eleft or right-hand cornering light is faulty.
X Chec kwhether you ar epermitted to change the bulb yourself
(Y page 113).
or
X Visit aqualified specialist workshop. b
Left dipped beam
or
Righ tdipped beam Th
eleft or right-hand dipped-beam headlamp is faulty.
X Check whether you are permitted to change the bulb yourself
(Y page 113).
or
X Visit aqualified specialist workshop. b
Traile
rleft tail lamp or
Trailer right tail lamp Th
eleft or right-hand trailer tail lam pisfaulty.
X Check whethe ryou ar epermitted to change the bulb yourself.
or
X Visit aqualified specialist workshop. b
Traile
rleft indi‐ cator or
Trailer right indicator Th
eleft or right-hand trailer tur nsignal lamp is faulty.
X Check whether you are permitted to change the bulb yourself.
or
X Visit aqualified specialist workshop. 262
Display messagesOn-board computer and displ
ays
Examp
le:e ngine oi lcap
X Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oi llev el is at or belo wthe MIN mark
on the dipstick ,top up with
0. 5to1 .0 litres of engine oil.
X Replace cap :on the fille rneck and turn
clockwise.
Make sure that the cap locks into place
securely.
X Check the oil level agai nwith the oil dip-
stick (Y page 320).
Further information on engine oil
(Y page 375). Checking and adding other service
products
Checking the coolant level Only check the coolant level when the vehicle
is on alevel surface and the engine has cooled
down.
X Turn the key to position 2(Y page 139) in
the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twic e(Ypage 139).
X Check the coolant temperatur egauge in
the multifunction displ ay.G
WARNING
Th ec ooling system is pressurised. Therefore,
only unscrew the cap once the engin ehas
cooled down. The coolant temperature gauge must display less than 70
†.Otherwi se,you
could be scalded if ho tcoolant escapes. X
Slowl yturn cap :half aturna nti-clock-
wis eand allo wexcess pressure to escape.
X Turn cap :further anti-clockwis eand
remove it.
If the coolant is at the level of markerbar
= in the filler nec kwhen cold ,ther eis
enough coolan tincoolant expansion
tank ;.
If the coolant leve lisapproximately 1.5 cm
above marker bar =in the filler nec kwhen
warm, ther eisenoughcoolant in coolant
expansion tank ;.
X If necessary ,top up with coolant that has
been tested and approved by Mercedes-
Ben z.
X Replace cap :and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 377).
Windscreen washer system and head-
lamp cleanin gsystem Th
ew asher fluid reservoir is used for both the
windscreen washe rsystem and the headlamp
cleaning system.
i Components and service products must
be matched. Mercedes-Benz recommends
that you use products teste dand approved
by Mercedes-Be nz.T hey ar elisted in this
Mercedes-Ben zOwner's Manual in the
appropriat esection. Engine compartment
321Maintenance andcare Z
