brake MERCEDES-BENZ E-CLASS SALOON 2015 Service Manual

Problem
Possible causes/consequences and
M
MSolutions Vehicles with
apetrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is
amalfunction in the engine electronics or in amechanical
componentoft he engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at aqualified specialist
workshop. The coolant tempera-
ture display is showing
more than 120 †. The
coolant warning lamp
may also be on and a
warning tone may
sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 382). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct,t
he engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic. Manual transmission
Gear lever
! Only engage gear when the clutch pedal is
depressed.
! When shifting between
5thand 6thgear,
you should always push the gear lever all
the way to the right. Otherwise, you could
shift unintentionally into 3rdor4th gear
and damage the transmission.
If you shift down at too high aspeed (trans-
mission braking), this can cause the engine to overrev, leading to engine damage.
Do not use the clutch bite point to keep the
vehicle stationary on uphill gradients.
There is otherwise arisk of damaging the
clutch.
! On long and steep downhill gradients,
especially if the vehicle is laden or towing a trailer, you must shift into gear
1, 2or3in
good time. This uses the engine's braking
effect.T his relieves the load on the brake
system and preventst he brakes from over-
heating and wearing too quickly. k
Reverse gear
1 -6
Forward gears 188
Manual transmissionDriving and parking

Shifting to neutralN
X
Depress the clutch pedal fully.
X Shift the gear lever to position N:. Engaging reverse gear
! Only shift into reverse gear
Rwhen the
vehicle is stationary. Otherwise, you could
damage the transmission.
X Move the gear lever firmly to the left,
beyond the point of resistance, then for-
wards.
The ECO start/stop function is not available
when reverse gear is engaged. For further
information on the ECO start/stop function;
see (Y page 183). Gearshift recommendation
X
Shift gear according to gearshift recom-
mendation :when shown in the multi-
function display of the instrumen tcluster.
The gearshift recommendations assist you in adopting an economical driving style. The rec- ommended gear is shown in the multifunctiondisplay. Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is ar isk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate. G
WARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away.T here isarisk of an
accident.
After switching off the engine, always switch
to parking position P.Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
HYBRID vehicles :make sure that you read
the "HYBRID" supplement included in the
vehicle literature. Otherwise, you may not
recognise dangers. Selector lever (AMG vehicles)
Overview of transmission positions j
Park position with parking lock
k Reverse gear
i Neutral
h Drive Automatic transmission
189Driving and parking Z

:
Transmission position display
; Drive program display
Engaging parkp osition P !
If the engine speed is too high, do not shift
the automatic transmission directly from D
to R,f rom Rto Dor directly to P.Otherwise,
the automatic transmission could be dam-
aged. j
Park position with parking lock
k Reverse gear
i Neutral
h Drive
X Push the DIRECT SELECT lever in the direc-
tion of arrow P.
Transmission position display Pis shown in
the multifunction display.
Depressin gthe brake and pushing the
DIRECT SELECT lever up or down disengages the parking lock. The transmission is in neu-
tral N.
In order to shift from park position Pdirectly
into Ror D:
R depress the brake pedal and
R push the DIRECT SELECT lever up or down
past the first point of resistance Engaging parkp
ositionPautomatically Park position
Pis automatically engaged if:
R you switch off the engine using the key and
remove the key
R you switch off the engine using the key or
using the Start/Stop button and open the
driver's door or front-passenger door
R you open the driver's door when the vehicle
is stationary or driving at very low speed
and the transmission is in position Dor R
Under certain conditions, the automatic
transmission shifts automatically to transmis-
sion position Pif the HOLD function or
DISTRONIC PLUS is activated. Observe the
information on the HOLD function
(Y page 229) and on DISTRONIC PLUS
(Y page 222).
Engaging reverse gear R !
Only shift the automatic transmission to
R
when the vehicle is stationary.
X If the transmission is in position Dor N:
push the DIRECT SELECT lever up past the first point of resistance.
X If the transmission is in position P:depress
the brake pedal and push the DIRECT
SELECT lever up past the first point of
resistance.
The ECO start/stop function is not available
when reverse gear is engaged. For further
information on the ECO start/stop function;
see (Y page 183).
Shifting to neutral N G
WARNING
If children are left unsupervised in the vehicle, they can:
R open doors and endanger other persons or
road users
R climb out and be injured by the traffic
R operate vehicle equipment and, for exam-
ple, trap themselves. Automatic transmission
191Driving and parking
Z

Children could also set th
evehicle in motion,
for example by:
R releasin gthe parking brake
R shiftin gthe automatic transmission out of
park position P
R starting th eengine.
Ther eisar iskofana ccidentand injury.
When leaving th evehicle ,always tak ethe key
wit hyou and loc kthe vehicle .Never leave
children unattende dinthevehicle .Always
keep th ekeyout of reac hofchildren.
X If th etransmission is in position Dor R:
push th eDIRECT SELECT leve rupordown
to th efirst poin tofresistance.
X If th etransmission is in position P:depress
th eb rak epedal and push th eDIRECT
SELECT leve rupordown to th efirst poin tof
resistance.
If you switch th eengineo ff wit hthe trans-
mission in position Ror D,t heautomatic
transmission shifts to Nautomatically.
Wit hthe key: if you then open th edriver's
door or th efront-pa ssenger door or remove
th ek eyfrom th eignition ,the automatic trans-
mission shifts to Pautomatically.
Wit hKEYLESS-GO: if you then open th edriv-
er' sorf ront-pa ssenger door ,the automatic
transmission shifts to P.
If you want th eautomatic transmission to
remain in neutral N,e.g.w hen havin gthe
vehicle cleane dinanautomatic car wash with
at ow ing system:
Wit hthe key:
X Switch th eignition on.
X Depres sthe brak epedal and keep it
depressed.
X Shift to neutral N.
X Release th ebrak epedal.
X Release th eparking brake.
X Switch off th eignition and leave th ekeyin
th ei gnition lock. Wit
hKEYLESS-GO:
X Remove th eStart/Sto pbutto nfromt he
ignition lock.
X Inser tthe keyintot he ignition lock.
X Switch th eignition on.
X Depres sthe brak epedal and keep it
depressed.
X Shift to neutral N.
X Release th ebrak epedal.
X Release th eparking brake.
X Switch off th eignition and leave th ekeyin
th ei gnition lock.
Engaging drive position D X
If th etransmission is in position Ror N:
push th eDIRECT SELECT leve rdown past
th ef irst poin tofresistance.
X If th etransmission is in position P:depress
th eb rak epedal and push th eDIRECT
SELECT leve rdown past th efirst poin tof
resistance. 192
Automatic transmissionDriving and parking

Transmission positions
B Park position
Thi
sprevents the vehicl efromr oll-
ing away when stopped. Onl yshift
the transmission into position P
when the vehicl eisstationary
(Y page 244).
Park position Pis automatically
engaged if:
R yo us witch off the engine using
the key and remove the key
R yo us witch off the engine using
the key or using the Start/Stop
button and open the driver's
door or front-passenge rdoor
R yo uo pent he driver's door when
the vehicl eisstationar yordriv-
ing at ver ylow spee dand the
transmission is in position Dor R C Revers
egear
Onl yshift the transmission into
position Rwhen the vehicl eissta-
tionary. A Neutral
Do not shift the transmission to
N
whil edriving .Otherwise, the auto-
matic transmission could be dam-
aged.
No powe ristransmitted fro mthe
engine to the drive wheels.
Releasing the brakes will allo wyou
to mov ethe vehicl efreely, e.g .to
push it or tow it.
If ESP ®
is deactivated or faulty:
shift the transmission onl ytoposi-
tion Nif the vehicl eisindangerof
skidding ,e.g.oni cy roads.
If yo uswitch the engine off with the
transmission in position Ror D,t he
automatic transmission shifts to N
automatically.
! Rolling in neutral
Ncan lead to
damage to the transmission. 7 Drive
The automatic transmission
change sgeara utomatically. All
forward gear sareavailable. Driving tips
Changin ggear The automatic transmission shifts to the indi-
vidua lgears automaticall ywhenitisint rans-
mission position D.Gearshifting is deter-
mined by:
R the selected drive progra m(Ypage 194)
R the positio nofthe accelerator pedal
(Y page 193)
R the roa dspeed
Accelerator peda lposition Your style of driving influences how the auto-
matic transmission shifts gear:
R little throttle :early upshifts
R mor ethrottle :lat eu pshifts Automati
ctransmission
193Driving andparking Z

Problems with the fuel and fuel tank
Problem
Possible causes/consequences and
M
MSolutions Fuel is leaking from the
vehicle. G
WARNING
The fuel line or the fuel tank is faulty.
There is arisk of fire or explosion.
X Apply the electric parking brake.
X Switch off the engine.
X Remove the key from the ignition lock.
or, on vehicles with KEYLESS‑GO,
X Open the driver's door.
The on-board electronics now have status 0.This is the same as
the key having been removed.
X Do not restart the engine under any circumstances.
X Consult aqualified specialist workshop. The engine does not
start. The fuel tank of
avehicle with adiesel engine has been run com-
pletely dry.
X Refuel the vehicle with at least 5litres of diesel.
X Turn the ignition on for approximately ten seconds
(Y page 179).
X Start the engine continuously for amaximum of ten seconds
until it runs smoothly.
If the engine does not start:
X Turn the ignition on again amaximum of ten seconds
(Y page 179).
X Start the engine again continuously for amaximum of ten sec-
onds until it runs smoothly.
If the engine does not start after three attempts:
X Consult aqualified specialist workshop. The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked.
X Unlock the vehicle (Y page 95).204
RefuellingDriving and parking

Problem
Possible causes/consequences and
M
MSolutions The key battery is discharged or nearly discharged.
X Unlock the vehicle using the emergency key element
(Y page 96).
X Open the boot lid or the tailgate.
X Manuallyu nlock the fuel filler flap using the emergency release
(Y page 202). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X Consult aqualified specialist workshop. Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system or exhaust
gas flow. There is arisk of fire.
Park the vehicle so that no flammable mate-
rial can come into contact with hot vehicle
components. In particular, do not park on dry grassland or harvested grain fields. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect.Y ou will require considerably
more effort to steer and brake. There is arisk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position Por shift manual transmission into
neutral
R start the engine
In addition, they may operate vehicle equip-
ment and become trapped. There is arisk of
an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
! Always secure the vehicle correctly
against rolling away.O therwise, the vehicle
or its drivetrain could be damaged.
To ensure that the vehicle is safeguarded
against rolling away unintentionally:
R the parking brake must be applied
R on vehicles with manual transmission,
engage 1st gear or reverse gear
R on vehicles with automatic transmission,
the transmission must be in position Pand Parking
205Driving and parking Z

the key must be remove
dfromt he ignition
lock
R the front wheels must be turned towards
the kerb on steep uphill or downhil lgradi-
ents Switchin
goffthe engine
Important safety notes G
WARNING
Th ea utomatic transmission switches to neu-
tra lposit ionNwhen yo uswitch off the engine.
Th ev ehicl emayrollaway. There is ariskofan
accident.
After switching off the engine ,alway sswitch
to parking position P.Prevent the parked vehi-
cle fro mrolling away by applying the parking
brake.
Vehicle swithm anual transmission X
Shift to eithe r1st gear or revers egear R.
X Turn the key to position 0in the ignition
lock and remove it.
Th eimm obiliser is activated.
X Firml ydepress the parking brake.
Vehicle switha utomatic transmission X
Firml ydepress the parking brake.
X Allv eh icle s(exce pt AM Gvehicles): shift
the transmission to position P.X
AM Gvehicles: when the vehicl eisstation-
ary, press button :. X
Wit hthe key: turnthe key to position 0in
the ignition lock and remove it.
Th eimm obiliser is activated.
X Wit hKEYLESS -GO:press the KEYLESS-
GO Start/Stop button (Y page 179).
Th ee ngine stops and al lthe indicator
lamps in the instrument cluste rgoout.
When the driver's door is closed, thi scor-
responds to key position 1.Whent he driv-
er' sd ooriso pen, thi scorresponds to key
position 0:"keyr emoved".
If yo uswitch the engine off with the trans-
mission in position Ror D,t he automatic
transmission shifts to Nautomatically.
Wit hthe key: if youtheno pent he driver's
door or the front-passenge rdoororr emove
the key fro mthe ignition, the automatic trans-
mission shifts to Pautomatically.
Wit hKEYLESS -GO:if youtheno pent he driv-
er' sorf ront-passenge rdoor, the automatic
transmission shifts to P.
If yo uwantthe automatic transmission to
remai ninneutral N,e.g.w henh avin gthe
vehicl ecleane dinana utomatic car wash with
at owing system:
Wit hthe key:
X Switch the ignition on.
X Depres sthe brake peda land kee pit
depressed.
X Shift to neutral N.
X Releas ethe brake pedal.
X Releas ethe parking brake.
X Switch off the ignition and leav ethe key in
the ignition lock.
Wit hKEYLESS -GO:
X Remov ethe Start/Stop button fro mthe
ignition lock.
X Insert the key into the ignition lock.
X Switch the ignition on.
X Depres sthe brake peda land kee pit
depressed.
X Shift to neutral N.206
ParkingDriving an
dparking

X
Releas ethe brak epedal.
X Releas ethe parkin gbrake.
X Switc hoff th eignition and leav ethe keyin
th ei gnition lock.
The engin ecan be switched off while th evehi-
cle is in motion by pressing and holdin gthe
Start/Sto pbutto nfor about three seconds.
This function operate sind ependentl yofthe
ECO start/sto pautomatic engin eswitch-off
function. Parking brake
G
WARNING
If you mus tbrak ethe vehicl ewitht he parking
brake, th ebrakin gdistanc eisconsid erably
longer and th ewheels could lock. This increa-
ses th eriskofs kiddin gand an accident.
Only use th eparkin gbrak etob rakethe vehi-
cle when th eservic ebrak eisf aulty. Do not
apply th eparkin gbrak etoo firmly. If the
wheels lock, release th eparkin gbrak euntil
th ew heels begi nturning again. G
WARNING
If you leav echildren unattended in th evehi-
cle ,the ym ay be able to set th evehicl ein
motion if, for example, they:
R release th eparkin gbrake
R shift th eautomati ctransmission out of park
position Por shift manual transmission into
neutral
R start th eengine
In addition ,the ym ay operate vehicl eequip-
men tand become trapped .There is ariskof
an acciden tand injury.
Whe nleavin gthe vehicle, always tak ethe key
wit hyou and loc kthe vehicle. Never leave
children unattended in th evehicle. The brak
elights do no tligh tupw hen you
brak ethe vehicl ewitht he parkin gbrake.
X To apply: depress parkin gbrake ;firmly.
The J indicato rlamp in th einstrument
cluste rlights up if th eengineisr unning.
X To release: depress thebrak epedal and
keep it depressed.
X Pull release handle :.
The J indicato rlamp in th einstrument
cluste rgoeso ut. Parking up th
evehicle
If you leav ethe vehicl eparked up for longer
than fou rweeks, th ebattery may be damaged
by exhaustive discharging.
If you leav ethe vehicl eparked up for longer
than six weeks, it may suffer from lack of use.
X Contac taqualified specialist workshop
and see kadvice.
i You can obtain information about trickle
chargers from aqualified specialist work-
shop. Driving tips
Genera
lnotes G
WARNING
If you switch off th eignition while driving,
safety-relevant function sare only available
wit hlimitations, or no tatall. This could affect,
for example, th epowe rsteerin gand th ebrake Driving tips
207Driving and pa rking
Z

boostin
geffect. You will require considerably
more effor ttosteer and brake. There is arisk
of an accident.
Do not switch off the ignition while driving. ECO display
The ECO display provides feedback on how
economical your driving characteristic sare.
The ECO display assists you in achievin gthe
most economical driving style for the selec-
ted settings and prevailing conditions. Con-
sumption can be significantly influenced by
your driving style.
The ECO display consists of three bars:
R Acceleration
Acceleration
R Constant Constant
R Coasting
Coasting
The percentage count is the mean value of the three bar values. The three bars and the mean
value begin at the value of 50%. Ahigher per-
centage count indicates amore economical
driving style.
The ECO display does not indicat ethe actual
fuel consumption .Afixed percentage count
in the ECO display does not indicat eafixed
consumption.
In addition to driving style, the consumption is
affected by many other factors, such as:
R load
R tyre pressure
R cold start
R choic eofroute
R the use of electrical consumers
These factors are not included in the ECO dis-
play. The evaluation of your driving style take
sthe
following three categories int oconsideration:
R Acceleration Acceleration (evaluation of all accelera-
tion processes):
- the bar fills up: moderat eacceleration,
especially at higher speeds
- the bar empties: sport yacceleration
R Constant
Constant (assessmen tofdriving behav-
iour at all times):
- the bar fills up: constan tspeed and
avoidance of unnecessary acceleration
and deceleration
- the bar empties: fluctuations in speed
R Coasting Coasting (assessmen tofall deceleration
processes):
- the bar fills up: anticipatory driving ,keep-
ing your distanc eand early release of the
accelerator. The vehicle can coast with-
out use of the brakes.
- the bar empties: frequent braking
i An economical driving style involves driv-
ing at amoderat eengin espeed.
To achieve ahigher value in the categories
Acceleration
Acceleration andConstant
Constant:
R observe the gearshift recommendation
R drive the vehicle in drive program E(vehi-
cles with automatic transmission)
i On long journeys at
aconstan tspeed, e.g.
on the motorway, only the bar for Constant
Constant
will change.
i The ECO display summarises the driving
characteristic sfrom the start of the journey
to its completion. Therefore, ther eare
dynamic changes in the bars at the start of aj ourney. Durin gaprolonge ddriving time,
these changes are smaller. For more
dynamic changes, perfor mamanual reset.
Further information on the ECO display
(Y page 280). 208
Driving tipsDriving and parking