Page 528 of 609
Display messages
Possible causes/consequences and M
MSolutions #
Consult a qualified specialist workshop.
4 Add 1 litre engine oil when
next refuelling *D
isplay message only for cer tain engines:
The engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
When next refuelling, add 1 litre of engine oil.
To p up engine oil (→ page 424).
No tes on engine oil (→ page 490).
Drive system Malfunction
Stop Switch engine off *T
he drive sy stem is malfunctioning. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. #
Consult a qualified specialist workshop.
Drive system Malfunction
Visit workshop *T
he drive sy stem is malfunctioning. #
Consult a qualified specialist workshop.
Ø *
The AdBlue ®
leve l has fallen below there ser verange. #
Top up at least 5 l of AdBlue ®
(→ page 173). Displ
aymessa ges and warning/indicator lamps 525
Page 529 of 609
Display messages
Possible causes/consequences and M
MSolutions
Refill AdBlue See Owner’s
Manual
Ø
Top up AdBlue Perf.
reduced in XXX miles See
Owner's Manual *
The low AdBlue ®
leve l will lead tolimited per form ance af terth ere maining dis tance displ ayed has been driven. #
Top up at least 5 l of AdBlue ®
(→ page 173).
Ø
Top up AdBlue Perf.
reduced: XXX km/h No
start in XXX km *
The low AdBlue ®
leve l will lead tolimited per form ance abo vethe speed displa yed.
Af terth e displa yedre maining dis tance has been co vered, it will no longer be possible tostart the engine. #
Top up at least 5 l of AdBlue ®
(→ page 173).
Ø
Refill AdBlue Engine start
not possible *
The AdBlue ®
tank is em pty. Yo u can no lon gerst art the engine. #
Top up at least 5 l of AdBlue ®
(→ page 173). #
Switch the ignition on.
Yo u can restart the engine af ter appro ximately one minu te. 526
Display messages and warning/indicator lamps
Page 530 of 609
Display messages
Possible causes/consequences and M
MSolutions
¯ AdBlue system fault See
Owner's Manual *
The AdBlue ®
sy stem is malfunctioning. #
Consult a qualified specialist workshop immediatel y.
¯
AdBlue system fault Perf.
reduced in XXX miles See
Owner's Manual *
The AdBlue ®
sy stem is malfunctioning. Performance will be reduced af terth ere maining dis tance displ ayed has
been co vered. #
Consult a qualified specialist workshop immediatel y.
¯
AdBlue system fault Perf.
reduced: XXX km/h No
start in XXX km *
Po we rre duction due totheAd Blue ®
sy stem fault. Af terth e dis tance displ ayed has been co vered, it will no longer
be possible tostart the engine. #
Consult a qualified specialist workshop immediatel y.
¯ *
The AdBlue ®
sy stem is malfunctioning. You can no lon gerst art the engine. #
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 527
Page 531 of 609
Display messages
Possible causes/consequences and M
MSolutions
AdBlue system fault Engine
start not possible Ty
res Display messages
Possible causes/consequences and M MSolutions
Tyre pressure Check tyres *T
he tyre pressure loss warning sy stem has de tected a significant loss in pressure. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyre pressure (→ page 459) andthe tyres. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (→ page 467). 528
Display messages and warning/indicator lamps
Page 536 of 609
Key
Display messages
Possible causes/consequences and M
MSolutions
 Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (→ page 154).
Â
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
 Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, start the engine with theke y in the slot (→ page154). Displ
aymessa ges and warning/indicator lamps 533
Page 537 of 609
Display messages
Possible causes/consequences and M
MSolutions
 Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (→ page67).
Â
Place the key in the
marked space See Owner's
Manual *T
hekey de tection function is malfunctioning. #
Change the location of theke y in theve hicle. #
Start theve hicle with theke y in the slot (→ page154).
,
Replace key See Owner's
Manual *
Ve hicles with a digital vehicle key:only a few or no authorisations remain forst arting the engine. #
Make sure that the internet connection is not limited bycer tain mobile phone settings. #
Open the Mercedes me connect http://www.mercedes.me and call up the digital vehicle key service. #
Deactivate the service firs t and then activate it again. #
Ifth e display message still appears, con tact the Mercedes-Benz Cus tomer Assis tance Center (C AC).
Ve hicles with a digital vehicle keyst icke r:on lyafe w or no authorisations remain forst arting the engine. #
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect. 534
Display messa ges and warning/indicator lamps
Page 538 of 609
Ve
hicle Display messages
Possible causes/consequences and M
MSolutions
Transmission Malfunction
Stop *
The transmission is malfunctioning. The transmission shifts toposition iautomaticall y. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Switch the transmission toposition j. #
Consult a qualified specialist workshop.
ï Trailer coupling extending… *E
xtending or retracting the ball nec k.
Do not attem pttospeed up, slow down or initiate there tracting or extending process using your hand, foot or other
aids. During there tracting or extending process, do not couple a traile r.
When the ball neck has reached an operational position, the display message disappears.
Teaching in transmission
Operate selector lever
Brake for XX seconds Risk
of vehicle rolling *T
he transmission is being taught in. There is a risk of theve hicle rolling away. #
Dep ress and hold the brake pedal until thete ach-in procedure has been comple ted.
The elect ric pa rking brake is applied automatically during thete ach-in procedure. #
Swit chthe ignition on. #
Select transmission position j,kori.
Auxiliary battery malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d. #
Consult a qualified specialist workshop. #
Untilthen, manually set the transmission toposition jbefore you swit choff the engine. #
Before leaving theve hicle, apply the electric parking brake. Display messages and
warning/indicator lamps 535
Page 539 of 609
Display messages
Possible causes/consequences and M
MSolutions
Clutch overheated Avoid
pulling away for XX:XX mins *T
he clutch is under considerable load and is overheating.
Av oid frequent pulling away and driving at walking pace over longer dis tances. #
Stop theve hicle, paying attention toroad and traf fic conditions, and le avethe engine running.
The clutch is cooled more quickly when the engine is running.
or #
If possible, continue driving at a steady speed and remo veyour foot from the clutch pedal. Do not ride the
clutch.
The clutch is cooled while theve hicle is in motion.
When the clutch has cooled down, the display message will disappear.
ï
Operation only possible in
transmission position P *
Yo u ha veattem ptedto displace the ball neck and the transmission is in position k,iorh. #
Depress the brake pedal. #
Shift the transmission toposition j.
ï Operation only possible in
transmission position N *
Ve hicles with manual transmission: you attem ptedto swivel the ball neck and the transmission is not in neutral
i. #
Shift the transmission toneutral i. 536
Display messa ges and warning/indicator lamps
