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Switching the rear window wiper on/
off Combination switch
0043
00C5 Rear window wiper switch
0048 00E2 To wipe with washer fluid
0049 ITo switch on intermittent wiping
004A 0To switch off intermittent wiping
004B 00E2 To wipe with washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn switch 0043to the corresponding posi-
tion
The rear window wiper switches on automat-
ically if you engage reverse gear and the wind-
shield wipers are on. Replacing the wiper blades
G
WARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
! Never open the hood if a windshield wiper
arm has been folded away from the wind-
shield.
Never fold a windshield wiper arm without a
wiper blade back onto the windshield/rear window. Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm without a wiper
blade and it falls onto the windshield, the
windshield may be damaged by the force of
the impact.
We recommend that you have the wiper
blades replaced at a qualified specialist
workshop.
! Only hold the wiper blade by the wiper
arm. You could otherwise damage the
wiper rubber.
The windshield will no longer be wiped prop-
erly if the wiper blades are worn. Replace the
wiper blades twice a year, ideally in spring and
fall. Front windshield wiper arm with wiper blade
X Fold wiper arm 0087away from the wind-
shield.
X Set wiper blade 0043at right angles to the
wiper arm.
X Press both retaining clips 0044together in
the direction of the arrow and swing wiper
blade 0043away from wiper arm 0087.
X Pull wiper blade 0043up and out of the
retainer on wiper arm 0087.
X Slide new wiper blade 0043into the retainer
on wiper arm 0087.
X Press new wiper blade 0043onto wiper arm
0087 until you hear retaining clips 0044engage.
X Fold wiper arm 0087back onto the windshield
again. 108
Windshield wipersLights and windshield wipers
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Rinse any affected areas off with plenty of
clean water. Consult a doctor if necessary.
i If the DEF level has dropped below the
reserve range, add at least 2.0 US gal
(7.6 l) of DEF at the latest after receiving the second warning message (Y page 182).
i If you switch off the engine at a low out-
side temperature and add DEF, restart the
engine after refueling. If you leave the vehi- cle parked without restarting the engine
and the DEF freezes in the DEF tank, the on-
board computer will only be able to register the new fill level after a defrosting period of
up to 60 minutes. During this time the
engine may only be operated in neutral.
You will find further information on DEF in the "Service products" section (Y page 318).
Refueling procedure DEF filler neck
Non-lockable DEF filler cap
Example: DEF filler cap in the engine compartment
X To open: switch off the ignition.
X Open the hood (Y page 248).
X Turn filler cap 0043counter-clockwise and
remove it.
X To close: replace cap 0043on the filler neck
and turn it clockwise.
You will hear a click when cap 0043is fully
closed.
X Close the hood (Y page 249). Lockable filler cap
Example: DEF filler cap in the engine compartment
X
To open: switch off the ignition.
X Open the hood (Y page 248).
X Remove tool 0085for unlocking tank filler
cap 0043from the footwell on the co-driver's
side (Y page 274).
X Pull cover 0087up, turn 90° and release.
X Insert tool 0085into hole 0044of tank filler
cap 0043.
X Turn filler cap 0043counter-clockwise and
remove it. Make sure that tool 0085remains
in tank filler cap 0043while doing so.
X To close: replace filler cap 0043and turn it
clockwise until closed.
X Pull tool 0085out of tank filler cap 0043and
stow with the vehicle tool kit in the footwell
on the co-driver's side.
X Pull cover 0087up over hole 0044of tank filler
cap 0043, turn and release.
X Turn tank filler cap 0043.
If tank filler cap 0043turns freely, the DEF
tank is closed. 148
RefuelingDriving and pa
rking
Page 251 of 334

Hood release lever in the driver's footwell
Observe the safety notes when you open the
hood.
X Stop your vehicle as far away from traffic as
possible on level ground.
X Switch off the engine.
X Secure the vehicle to prevent it from rolling
away.
X Pull release handle 0043on the hood.
The hood is released. X
Reach into the gap and push lever 0044on the
hood catch up. X
Swing the hood upwards until support strut
0087 engages and the hood is supported.
Closing the hood G
WARNING
If the hood is unlatched, it could tip forward
during rapid deceleration of the vehicle and
hit persons or objects within its path. There is
a risk of an accident and injury.
Therefore, always make sure that the hood is closed and locked completely before driving
off.
If the hood is not locked and you are already
driving at walking pace:
R the yellow 003Eindicator lamp in the
instrument cluster goes on for vehicles
without steering-wheel buttons.
R the 003E Hood open
Hood open display appears for
vehicles with steering-wheel buttons.
! When you press the support strut back,
make sure that you do not press it against
the detent position and cause it to bend.
! Do not use your hands to push the hood
down. You could damage it otherwise.
X Lift the hood slightly.
X Press support strut 0087towards the back.
X Lower the hood and allow it to fall with
momentum from a height of approximately
1 ft (30 cm).
The hood locks audibly.
X Check that the hood is correctly locked.
If the hood can be raised slightly, it is not
properly engaged. If the hood is not cor-
rectly engaged, open the hood again. Let
the hood fall with a little more momentum. Engine compartment
249Maintenance and care Z