engine MERCEDES-BENZ E-CLASS ESTATE 2012 Workshop Manual

Problem Possible causes/consequences and
M Solutions
Vehicles with a petrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the 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 a qualified specialist
workshop. The coolant tempera-
ture display is showing
more than 120 †. The
coolant warning lamp
may also be lit 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 348). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the 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
Important safety notes
G
WARNING
The movement of the pedals must not be
impaired in any way. Do not keep any objects
in the driver's footwell. Make sure that floor-
mats or carpets are correctly secured and
that there is sufficient clearance for the ped-
als.
Do not place several floormats on top of one
another. G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. This could cause you to lose control of your vehicle and cause an
accident.
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 a speed (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 a risk of damaging the
clutch. Manual transmission
169Driving and parking Z

!
On long and steep downhill gradients,
especially if the vehicle is ladenort owing
a trailer, you must shift into gear 1, 2or3
in good time. This uses the engine's braking
effect .This relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly. Gear lever
Shifting to neutral (N)
X
Depress the clutch pedal fully.
X Move the gear lever to position N:. Neutral N with ECO start/stop func-
tion activated
The engine is switched off, if:
R in neutral N, the vehicle speed is below a
certain threshold and
R the clutch pedal is not depressed.
For further information on the ECO start/stop
function, see (Y page 165). 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 and then
forwards.
i The ECO start/stop function is not avail-
able when reverse gear is engaged.
Further information on the ECO start/stop
function (Y page 165). Gearshift recommendation
X
Shift gear according to gearshift recom-
mendation :shown in the multifunction
display of the instrumentc luster.
The gearshift recommendations assist you in
adopting an economical driving style. The rec-
ommended gear is shown in the multifunction
display. 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 a risk of an accident. 170
Automatic transmissionDriving and parking

Transmission position and drive pro-
gram display
!
If the transmission positio ndisplay in the
multifunction display is not working, you
should pull away carefully to chec kwhether
the desired transmission position is
engaged. Ideally, you should select trans-
mission position Dand drive program Eor
S. Do not restrict the shift range. :
Transmission position display
; Drive program display
The current transmission position and drive
program appearint he multifunction display.
i The arrows in the transmission position
display show how and into which transmis-
sion positions you can change using the
DIRECT SELECT lever.
Engaging parkp osition P!
If the engine speed is too high, do no tshift
the automatic transmission directly from
D to R, from Rto Dor directly to P. Other-
wise, the automatic transmission could be
damaged.
X Push the DIRECT SELECT lever in the direc-
tion of arrow P.
i The automatic transmission shifts auto-
matically into park position Pif you:
R open the driver's door when the vehicle
is stationary with the transmission in
position Dor R
R open the driver's door when driving at
very low speed with the transmission in
position Dor R
This function depends on the date of man-
ufacture of your vehicle. i
Depress the brake and push the DIRECT
SELECT lever up or down to disengage the
parking lock. The transmission is in neutral
N.
If you want to shift from park position P
directly to Ror D:
R depress the brake and
R push the DIRECT SELECT lever up or
down past the first point of resistance.
Engaging reverse gear R !
Only shift the automatic transmission to
R when the vehicle is stationary.
X Push the DIRECT SELECT lever up past the
first point of resistance.
i The ECO start/stop function is not avail-
able when reverse gear is engaged.
For further information on the ECO start/
stop function, see (Y page 165).
Neutral N with ECO start/stop function
activated The ECO start/stop function switches the
engine off automatically when the vehicle is
stationary if the vehicle is braked to a stand-
still in neutral
N.
For further information on the ECO start/stop
function, see (Y page 164).
Shifting to neutral (N) X
Push the DIRECT SELECT lever up or down
to the first point of resistance.
Drive position D with ECO start/stop
function activated The ECO start/stop function switches the
engine off automatically when the vehicle is
braked to a standstill in transmission posi-
tion
D.
For further information on the ECO start/stop
function, see (Y page 164).172
Automatic transmissionDriving and parking

Engaging drive position D
X
Push the DIRECT SELECT leve rdown past
the first point of resistance. Transmission positions
B
Park position
This prevents the vehicle from roll-
ing away when stopped. Do not
shift the transmission into position
P(Y
page 183) unless the vehicle
is stationary.
Standard vehicles with aselec-
tor lever: you can only remove the
key if the transmission is in posi-
tion P. If the key is removed from
the ignitio nlock, the selector lever
is locked.
Vehicles with aDIRECT SELECT
lever: the automatic transmission
shifts to Pautomatically if you:
R remove the key
R switch off the engine when in R
or Dand open one of the front
doors C
Reverse gear
Only shif
tthe transmission to R
when the vehicle is stationary. A
Neutral
Do not shift the transmission to
N
while driving. Otherwise, the auto-
matic transmission could be dam-
aged.
Releasing the brakes will allow you
to move the vehicle freely, e.g. to
push it or tow it.
If ESP ®
is deactivated or faulty:
only shift the transmission to posi-
tion Nif the vehicle is in danger of
skidding, e.g. on icy roads.
Vehicles with aDIRECT SELECT
lever: if you switch off th eengine
using the key or the Start/Stop
button, the automatic transmission
shifts to neutral Nautomatically.
! Rolling in neutral Ncan lead to
damage to the transmission. 7
Drive
The automatic transmission
changes gear automatically. All
forward gears are available. Changing gear
The automatic transmission shifts to the indi-
vidual gears automatically when it is in trans-
mission position D.Gearshifting is deter-
mined by:
R a shift range restriction, if selected
R the selected drive program
E/S, E/S/M or, on AMG vehicles,
C/S/S+/M (Ypage 174)
R the position of the accelerator pedal
R the road speed Automatic transmission
173Driving and parking Z

Driving tips
Accelerator pedal position Your style of driving influences how the auto-
matic transmissio
nshifts gear:
R little throttle: early upshifts
R more throttle: late upshifts
AMG vehicles When shifting down, the double-clutch func-
tion is active regardless of the currently selec-
ted drive program. The double-clutch function
reduces load change reactions and is condu-
cive to a sporty driving style. The sound gen-
erated by the double-clutchf
unction depends
on the drive program selected.
Kickdown Use kickdown for maximum acceleration.
X
Depress the accelerato rpedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up.
Towing atrailer X
Drive in the middle of the engine speed
range on uphill gradients.
X Shift down to shift range 3or
2(Y page 176) depending on the uphill or
downhill gradient, eve nifcruise control,
DISTRONIC PLUS or SPEEDTRONIC is acti-
vated. Program selector button
General notes Example
:program selector button
X Press progra mselecto rbutton :repeat-
edly until the lette rfor the desired gearshift
program appears in the multifunction dis-
play.
The program selector button allows you to
choose between different driving character-
istics. E
Economy Comfortable, economical
driving
S
Sport Sporty driving style
M
Manual Manual gearshifting
i
For further information on the automatic
drive program, see (Y page 175).
i The automatic transmission switches to
automatic drive program Eeach time the
engine is started. 174
Automatic transmissionDriving and parking

AMG vehicles
Drive progra
mselector with manual drive program
X Turn drive program selector :until the
desired drive program appears in the mul-
tifunction display in the speedometer.
The drive program indicato rondrive pro-
gram selector :lights up in red. C
Controlled
Efficiency Comfortable, economical
driving
S
Sport Sporty driving style
S+
SportPlus Extremely sporty driving
style
M
Manual Manual gearshifting
RS
RACE
START Optimal vehicle accelera-
tion from a standstill
i
For further information on the automatic
drive program, see (Y page 175).
i The automatic transmission switches to
automatic drive program Ceach time the
engine is started.
i RScannot be selected during normal driv-
ing. For further information on RACE
START, see (Y page 207). Steering wheel gearshift paddles
:
Left-hand steering wheel gearshift paddle
; Right-hand steering wheel gearshift pad-
dle
In the automatic drive program, you can
restrict or derestrict the shift range by using
the steering wheel gearshift paddles or the
selector leve r(Ypage 176).
In the manual drive program, you can change
gear using the steering wheel gearshift pad-
dles or the selector lever (Y page 177).
i You can only change gear with the steer-
ing wheel gearshift paddles when the trans-
mission is in position D. Automatic drive program
Drive program E(drive program Con AMG
vehicles) is characterised by the following:
R comfort-oriented engine settings
R optimal fuel consumption resulting from
the automatic transmission shifting up
sooner
R the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully
R increased sensitivity. This improves driving
stability on slippery road surfaces, for
example
R the automatic transmission shifting up
sooner .This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin Automatic transmission
175Driving and parking Z

Drive program
S(or, in the case of AMG vehi-
cles, drive programs Sand S+) is character-
ised by the following:
R sporty engine and automatic transmission
settings
R the vehicle pulling away in first gear
R the automatic transmission shifting up
later
R as a resul tofthe later automatic transmis-
sion shift points, the fuel consumption pos-
sibly being higher. Shift ranges
Introduction i
OnAMG vehicles andvehicles with
steering wheel gearshift paddles, you
can restrict or derestrict the shift range
using the steering wheel gearshift paddles.
On standard vehicles with aselector
lever , you can also restric torderestrict the
shift range using the selector lever.
When the automatic transmission is in posi-
tion D, it is possible to restrict or derestrict
the shift range (Y page 176).
The shift range selected is shown in the mul-
tifunction display. The automatic transmis-
sion shifts only as far as the selected gear.
Shift range: =
To use the engine's brakin
geffect 5
To use the braking effect of the
engine on downhill gradients and
for driving:
R
on steep mountai nroads
R in mountainous terrain
R in arduous conditions 4
To use the braking effect of the
engine on extremely steep downhill
gradients and on long downhill
stretches Restricting the shift range
X
Press the selector lever to the left towards
D–.
or
X Pull the left-hand steerin gwheel gearshift
paddle.
The automatic transmission shifts down
one gear and restricts the shift range to the
relevant gear.
i If the engine exceeds the maximum
engine speed when shifting down, the auto-
matic transmission protects against engine
damage by not shifting down.
i If the maximum engine speed for the shift
range is reached and you continue to accel-
erate, the automatic transmission shifts up,
even if the shift range is restricted. This
prevents the engine from overrevving.
Extending the shift range X
Briefly press the selector lever to the right
towards D+.
or
X Pull the right-hand steering wheel gearshift
paddle.
The shift range is derestricted.
Clearing the shift range restriction X
Press and hold the selector lever towards
D+ until Dis shown once more in the mul-
tifunction display.
or
X Pull and hold the right-hand steering wheel
gearshift paddle until Dis shown again in
the multifunction display.
The automatic transmission shifts from the
current shift range directly to D.176
Automatic transmissionDriving and parking

Selecting the ideal shift range
X
Press the selector lever to the left towards
D– and hold it in position.
or
X Pull the left-hand steering wheel gearshift
paddle and hold it in position.
The automatic transmission shifts to the
gear which allows optimum acceleration
and deceleration. To do this, the automatic
transmission shifts down one or more
gears. Manual drive program
Activating the manual drive program X
Press the program selector button
(Y page 174) repeatedly until Mappears in
the multifunction display.
X AMG vehicles: turn the drive program
selector (Y page 175) until Mappears in the
multifunction display.
The indicator Mon the drive program selec-
tor lights up in red.
AMG vehicles and vehicles with aDIRECT
SELECT lever: you can select manual drive
program Musing the program selector or the
drive program selector button. In manual
drive program M, you can change gear using
the steering wheel gearshif tpaddles if the
transmission is in position D.
Standar dvehicles with aselector lever:
you can selec tmanual drive program Musing
the program selector button. If the transmis-
sion is in position D, you can change gear
using the steering wheel gearshif tpaddles or
the selecto rlever in manual drive program
M.
Upshifting !
In manual gearshift program M, the auto-
matic transmission does not shift up auto-
matically even when the engine limiting
speed for the curren tgear is reached.
When the engine limiting speed is reached, the fuel supply is cut to preven
tthe engine
from overrevving. You must make sure that
the engine speed does not reach the red
area of the rev counter. Otherwise, there is
a risk of engine damage.
X Briefly press the selector lever to the right
towards D+.
or
X Pull the right-hand steering wheel gearshift
paddle.
The automatic transmission shifts up to the
next gear.
AMG vehicles
X If the colour in the multifunction display in
the speedometer changes to red and the
UP display message is shown, shift up a
gear.
Downshifting X
Briefly press the selector lever to the left
towards D–.
or
X Pull the left-hand steering wheel gearshift
paddle.
The automatic transmission shifts down to
the next gear.
i If you desire maximum acceleration, push
the selector lever to the left or pull and hold
the left-hand steering wheel gearshift pad-
dle until the transmission shifts to the opti-
mal gear for the current speed.
Kickdown You can also use kickdown for maximum
acceleration in manual drive program
M.
X Depress the accelerator pedal beyond the
pressure point.
The transmission shifts to a lower gear
depending on the engine speed.
i AMG vehicles: it is not possible to use
kickdown in manual drive program M. Automatic transmission
177Driving and parking Z

Problems with the transmission
Problem Possible causes/consequences and
M Solutions
The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at a qualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer changes gear. The transmission is in emergency mode.
It is only possible to shift into secondgear and reverse gear.
X Stop.
X Shift the transmission to position P.
X Switch off the engine.
X Wait at least ten seconds before restarting the engine.
X Shift the transmission to position Dor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
X Have the transmission checked at a qualified specialist work-
shop immediately. Releasing the parking lock manually
i
The following description does not apply
to vehicles with a DIRECT SELECT lever and
AMG vehicles.
X Apply the parking brake.
X Prise out selector lever gaiter :with a flat,
blunt object (e.g. a screwdriver wrapped in cloth) from the right-hand edge. Pull selec-
tor lever gaiter
:up and out.
X Press release button ;down and simul-
taneously move the selector lever out of
position P.
The selector lever can now be moved freely
until it is returned to position P.
In the event of an electrical fault, it is possible
to release the selector lever lock manually to
move it out of position P. This occurs if the
vehicle is towed away, for example. Refuelling
Important safety notes
G
WARNING
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine and the auxiliary heating
before refuelling. Refuelling
179Driving and parking Z

G
WARNING
Avoid contact with fuels.
It is hazardous to yourh ealth if your skin
comes into direct contact with fuels or you
breathe in fuel vapours. G
WARNING
Do not use petrol to refuel a diesel tank .Never
mix diesel with petrol. Doing so could damage
the fuel system and the engine. The vehicle
could also catch fire.
! Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Even small
amounts of the wrong fuel result in damage
to the fuel system and the engine.
! Do not switch on the ignition if you acci-
dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines. Notify
a qualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel
can. The fuel lines and/or the diesel injec-
tion system could otherwise be blocked by
particles from the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 436). Refuelling
Opening/closing the fuel filler flap :
To open the fuel filler flap
; To insert the fuel filler cap
= Tyre pressure table
? Fuel type to be refuelled
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
8 in the instrument cluster. The arrow
nextt o the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the key from the ignition lock.
X KEYLESS-GO: open the driver's door.
This corresponds to key position 0: "key
removed".
The driver's door can be closed again.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap fully.
X Turn the fuel filler flap anti-clockwise and
remove it. 180
RefuellingDriving and parking