check engine MERCEDES-BENZ E-CLASS ESTATE 2016 User Guide

If
th e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen. &
WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point.
During starting assis tance or battery charg‐
ing, bat tery gas may be released. #
Alw aysth aw a frozen bat tery out first
before charging it or per form ing start‐
ing assis tance. *
NO
TEShor tening the service life of the
battery bycharging the battery at low
te mp eratures Charging
the battery at very low temp era‐
tures may shor tenth e service life of the bat‐
te ry and ha vea negative ef fect on starting. #
Do not charge the battery at very low
te mp eratures. The service life of a battery
that has been
th awe d may be dramatically shor tened.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
All vehicles
* NO
TEDama gecaused bynumerous or
ex tended attem ptsto start the engine Nume
rous or extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel. #
Avoid numerous and extended attem pts
to start the engine. Obser
vethefo llowing points during starting
assis tance and when charging the battery:
R Only use undamaged jump leads/charging
cables with a suf ficient cross-section and
insula tedte rm inal clamps.
R Non- insulated parts of thete rm inal clamps
must not come into con tact wi thother me tal
parts while the jump lead/charging cable is
connected tothe battery/jump-s tart connec‐
tion point. R
The jump lead/charging cable must not
come into contact wi thany parts which may
mo vewhen the engine is running.
R Alw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
R Keep away from fire and naked flames.
R Do not lean overth e batter y.
R When charging: only use battery charge rs
te sted and appr ovedby Mercedes-Benz and
re ad the battery charge r's operating instruc‐
tions before charging the batter y.
Obser vethe additional following points during
st arting assis tance:
R Starting assis tance may only be pr ovided
using batteries with a nominal voltage of 12
V.
R The vehicles must not touch.
R Petrol engine: Only acce ptstarting assis‐
ta nce if the engine and exhaust sy stem are
cold. #
Secure theve hicle byapplying the electric
parking brake. Breakdown assis
tance 399

#
Tow- start theve hicle while the clutch pedal
is fully depressed. #
Slowly release the clutch pedal. #
Immediately shift toneutral if the engine
st arts. #
Pull over and stop theve hicle safely as soon
as possible, paying attention toroad and traf‐
fi c conditions. #
Remo vetheto w bar. #
Remo vetheto wing eye. #
Have theve hicle checked at a qualified spe‐
cialist workshop. Electrical fuses
Note
s on electrical fuses &
WARNING Risk of accident and inju ry
due to ov erloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher
amperage, the electric line could be overloa‐
ded. This could
result in a fire. #
Alw aysre place faulty fuses with speci‐
fi ed new fuses conta iningthe cor rect
amperage. *
NO
TEDama gecaused byincor rect fuses Incor
rect fuses may cause damage toelectri‐
cal components or sy stems. #
Only use Mercedes-Benz appr oved
fuses with the cor rect fuse rating. Blown fuses mu
stbe replaced with fuses of the
same rating, which you can recognise bythe col‐
our and fuse rating. The fuse ratings are li sted in
th e fuse assignment diagram.
Fu se assignment diag ram: onthe fuse box in
th e load compartment (→ page 408).
* NO
TEDama geor malfunctions caused
by moisture Moisture may cause dama
getothe electrical
sy stem or cause it tomalfunction. #
When the fuse box is open, make sure
th at no moisture can enter the fuse
box. #
When closing the fuse box, make sure
th at the seal of the lid is positioned cor‐
re ctly on the fuse box. If
th e newly inser ted fuse also blo ws, ha vethe
cause traced and rectified at a qualified special‐
ist workshop, e.g. a Mercedes-Benz Service
Centre.
Ensure thefo llowing before replacing a fuse:
R The vehicle is secured against rolling away.
R All electrical consumers are switched off.
R The ignition is switched off.
The electrical fuses are located in various fuse
bo xes:
R Fuse box in the engine compartment on the
driver's side (→ page 407)
R Fuse box on the driver's side of the cockpit
(→ page 408) 406
Breakdown assis tance

R
Fuse box in the front-passen gerfo ot we ll
(→ page 408)
R Fuse box in the load compartment on the
ri ght-hand side of theve hicle, when vie wed
in the direction of tra vel (→ page 408) Fu
se box in the engine compa rtment Requ
irements:
Obser vethe no tes on electrical fuses
(→ page 406).
Ha ve thefo llowing readily available:
R A dry clo th
R A scr ewdriver
Opening &
WARNING Risk of inju ryfrom using the
windscreen wipers while the engine bon‐
net is open
When the engine bonn etis open, and the
windscreen wipers are set in motion, you can
be trapped bythe wiper linkage. #
Alw ays switch off the windscreen wip‐
ers and ignition before opening the
engine bonn et. #
Turn clip 2on co ver1 aqu arter-turn to
th e left. #
Pull co ver1 upwards in the direction of the
ar row. #
Remo veany existing moisture from the fuse
box using a dry clo th. #
Loosen scr ews4, remo vefuse box lid 3
from theto p.
Closing #
Check whe ther the seal is positioned cor‐
re ctly in the lid. Breakdown assis
tance 407

Display messages
Possible causes/consequences and M
MSolutions
Brake immediately *
Ve hicles with manual transmission: a malfunction has occurred while the HOLD function was activated.
A tone may also sound at regular inter vals. If you attem pttolock theve hicle, theto ne becomes louder.
Yo u cannot start the engine. #
Immediately depress the brake pedal firm lyuntil the display message disappears.
Yo u can restart the engine.
J
Check brake fluid level *T
here is insuf ficient brake fluid in the brake fluid reser voir. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Consult a qualified specialist workshop.
Do not top up the brake fluid. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Consult a qualified specialist workshop.
Do not top up the brake fluid. Display messages and
warning/indicator lamps 455

Display messages
Possible causes/consequences and M
MSolutions
# Check brake pad wear *T
he brake linings ha vereached thewe ar limit. #
Consult a qualified specialist workshop.
Active Brake Assist Func-
tions currently limited See
Owner's Manual *
Ve hicles with Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE ®
PLUS are temp orarily una vailable or only partially available.
Ve hicles without the Driving Assistance pa ckage: Active Brake Assi stistemp orarily una vailable.
The ambient conditions are outside the sy stem borders . #
Drive on.
As soon as the ambient conditions are within the sy stem borders, the sy stem will become available again. #
Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
Active Brake Assist Func-
tions limited See Owner's
Manual *
Ve hicles with Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE ®
PLUS is malfunctioning.
Ve hicles without the Driving Assistance Package: Active Brake Assi stis malfunctioning. #
Consult a qualified specialist workshop.
PRE-SAFE inoperative See
Owner's Manual *
PRE‑SAFE ®
functions are malfunctioning. #
Consult a qualified specialist workshop. 456
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assi stistemp orarily una vailable.
The sy stem borders ha vebeen reached (→ page242). #
Drive on.
When the causes no longer appl y,the sy stem will be available again. #
Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. #
Consult a qualified specialist workshop.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assi stis malfunctioning. #
Consult a qualified specialist workshop.
Example:Parking Pilot Park-
ing cancelled *T
he parking assis tance sy stems of Parking Pilot wereinter rupte d.You ha veopened the driver's door or touched the
st eering wheel, forex ample. #
Steer and brake manuall y.
ë Off *T
he HOLD function is deactivated because theve hicle is skidding or a condition for activation is not met. #
Reactivate the HOLD function later or check the activation conditions forth e HOLD function .
Distance Pilot available
again *D
ista nce Pilot DISTRONIC is operational again and can be acti vated (→ page 205). 468
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
# Stop vehicle Leave engine
running *T
he battery charge leve l is too lo w. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Start the engine. #
Wait until the display message disappears before pulling away.
4 Check eng. oil lev. when
next refuelling *T
he 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. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (→ page377).
No tes on engine oil (→ page 438). Display messages and
warning/indicator lamps 475

Display messages
Possible causes/consequences and M
MSolutions
4 Engine oil level Stop vehi-
cle Switch engine off *D
isplay message only with cer tain engines:
The engine oil le vel is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Switch off the engine. #
Check the engine oil le vel.
To p up the engine oil (→ page377).
No tes on engine oil (→ page 438).
4 Engine oil level Reduce oil
level *D
isplay message only with cer tain engines:
The engine oil le vel is too high.
* NO
TEEngine dama gecaused bydriving with excess engine oil #
Avoid long journe yswith excess engine oil. #
Consult a qualified specialist workshop immediately and ha veengine oil siphoned off. 476
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
4 Add 1 litre engine oil when
next refuelling *D
isplay message only with 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. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (→ page377).
No tes on engine oil (→ page 438).
4 Engine oil pressure Stop
Switch off engine *D
isplay message only with cer tain engines:
The engine oil pressure is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil pressure #
Avoid long journe yswith insuf ficient engine oil pressure. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 477

Display messages
Possible causes/consequences and M
MSolutions
5 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor is inter rupte d or the oil le vel sensor is faulty.
The engine oil le vel has dropped tothe minimum le vel. #
Consult a qualified specialist workshop.
Ø Refill AdBlue See Owner’s
Manual *
The AdBlue ®
leve l has fallen below there ser verange. #
Refill Ad Blue ®
immediately .
Ø Refill AdBlue Eng. start not
possible *
The AdBlue ®
tank is em pty. Yo u can no lon gerst art the engine. #
Top up at least 4.0 lof Ad Blue ®
. #
Switch the ignition on.
Yo u can restart the engine af ter appro ximately one minu te.
Ø
Check AdBlue See Owner’s
Manual *
The AdBlue ®
sy stem is malfunctioning. #
Consult a qualified specialist workshop. 478
Displaymessa ges and warning/indicator lamps