XSwitch off all electrical consumers.
XTo remove:remove screws =and take off
trim ;.
XRemove floor covering :.
XTo install:insert floor covering :and align
with the driver's seat base and the doorway.
XPut trim ;in place and screw screws =
back in.
Disconnecting/connecting the
starter battery
Important safety notes
GWARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
RMake sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
RIt is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running.
Disconnecting the starter battery
!Switch off the engine and remove the key
from the ignition lock. Firstly remove the bat- tery terminals. Otherwise, you could destroy
electronic components such as the alterna-
tor.
Always disconnect the starter battery in the
battery case in the left-hand side footwell
first.
!Always disconnect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the vehi-
cle electronics.
If the vehicle is expected to be out of use for over 3 weeks, disconnect the batteries. This will pre-
vent battery discharge caused by off-load cur-
rent consumption.
Battery cover in the left footwell
XSwitch off all electrical consumers.
XSwitch off the engine and remove the key
from the ignition lock.
XRemove the floor covering (Ypage 228).
XLoosen screws ;and slide battery cover :
in the direction of the arrow.
The screws must protrude beyond the larger
recesses.
XRemove battery cover :upwards.
Starter battery in the left footwell
XFirst loosen and remove the negative terminal
clamp so that it is no longer in contact with
the terminal.
XRemove the cover from the positive terminal.
XLoosen the positive terminal clamp and fold it
up to the side together with the pre-fuse box.
Battery229
Maintenance and care
Z
XClean camera lens:with clean water and a
soft cloth.
Make sure that you donot apply any wax to
camera lens :when waxing the veh icle.If nec-
essary, remove the wax using water, shampoo
and a soft cloth.
Cleaning the sliding door
XRemove foreign objects from the vicinity of
the contact surfaces and contact pins of the
slidin g door.
XClean the contact surfaces and contact pins
wit h a mild cleaning agent and a soft cloth.
Do not oil or grease the contact plates and con-
tact pins.
Steps
Cleaning the electrical step
Clean the electrical step at least once a month.
Make sure that no dirtaccumulates inthe hous-
ing or on the step.
XExtend the electrical step (Ypage 66).
XClose the sliding door unt ilthe door lock
engages.
The electrical step remains extended for
cleaning.
XClean the electrical step and the housing with
a power washer.
XAfter cleaning, spray the step guides on each
side wit h silicone spray when the housing and
electrical step are dry.
Do not use oil or grease as a lubricant.
XRetract the electrical step.
Access step in the bumper
Example :access step in th ebumpe r
Pay attention to the important safety notes in
the "Notes on care" (Ypage 233) and "Power
washers" (Ypage 234) sections.
Keep step in the bumper :free from dirt, such
as:
Rmud
Rclay
Rsnow
Rice
XClean access step in the bumper :with a
power washer.
Cleaning the trailer tow hitch
!Do not clean the ball coupling with a power
washer. Do not use solvents.
!Observe the notes on care in the Operator's
Manual for the trailer tow hitch and the ball
coupling manufacturer.
You can also have the maintenance work on the
ball coupling and the trailer tow hitch carried out
by a qualified specialist workshop.
Interior
Cleaning the interior
!When using liquids to clean the vehicle inte-
rior, observe the foll owing points:
RUnder no circumstances use power wash-
ers.
RMake sure that no fluids enter or remain in
gaps and cavities.
REnsure sufficient ventilation when clean-
ing.
RMake sure that the vehicle interior is com-
pletely dry after cleaning.
Cleaning the display
!For cleaning, do not use any of the foll owing:
Ralcohol-based thinner or gasoline
Rabrasive cleaning agents
Rcommercially-availab lehousehold cleaning
agents
These may damage the display surface. Do
not put pressure on the display surface when cleaning. This could lead to irreparable dam-
age to the display.
Care237
Maintenance and care
Z
Raising the vehicle
GWARNING
If you do not position the jack correctly at the
appropriate jacking point of the vehicle, the
jack could tip over with the vehicle raised.
There is a risk of injury.
Only position the jack at the appropriate jack-
ing point of the vehicle. The base of the jack
must be positioned vertically, directly under
the jacking point of the vehicle.
GWARNING
On uphill and downhill slopes, the jack could
tip over with the vehicle raised. There is a risk
of injury.
Do not change wheels on uphill or downhill
gradients. Notify a qualified specialist work-
shop.
!Only position the jack on the jacking points
intended for this purpose. You could other-
wise damage the vehicle.
Observe the following when raising the vehicle:
RWhen raising the vehicle, only use the jack
which Mercedes-Benz has specifically
approved for your vehicle.
RThe vehicle's jack is intended only to raise the
vehicle for a short time when changing a
wheel. It is not suited for performing mainte-
nance work under the vehicle.
RAvoid changing the wheel on uphill and down- hill slopes.
RBefore raising the vehicle, secure it from roll-
ing away by applying the parking brake and
inserting wheel chocks. Never disengage the
parking brake while the vehicle is raised.
RThe jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a large,
load-bearing underlay must be used. On a
slippery surface, a non-slip underlay must be
used, e.g. rubber mats.
RMake sure that the distance between the
underside of the tires and the ground does not
exceed 1.2 in(3 cm).
RNever place your hands or feet under the
ra
ised vehicle.
RNever lie under the raised vehicle.
RNever start the engine when the vehicle is
raised.
RNever open or close a door when the vehicle
is raised.
RMake sure that no persons are present in the
vehicle when the vehicle is raised.
!Only use the jack pump lever middle rod and
the rod with the largest diameter as a lug
wrench extension. Only slide the middle rod
as far as it will go onto the lug wrench. The
rods may otherwise bend and be distorted to
such an extent that they can no longer be
used as a pump lever for the jack.
!Do not place the jack on the leaf spring or
the differential case.
Hydraulic jack
Preparing the hydraulic jack
XInsert the third rod of jack pump lever :into
the lug wrench extension.
Jack pump lever :is assembled.
XClose pressure release screw ;.
XTo do this, use the flattened section on pump
lever:to turn pressure release screw ;
clockwise to the stop.
iDo not turn pressure release screw ;more
than 1 or 2 full turns. Hydraulic fluid could
otherwise escape.
XInsert pump lever :into the recess on the
jack and secure by turning it clockwise.
XPlace the jack vertically beneath the jacking
points described below.
268Changing wheels
Wheels and tires
You must observe the correct wheel and
tire dimensions as well as the wheel type.
When using a spare wheel of a different size, do
not exceed the maximum speed of 80 km/h.
General notes
!
Check the spare wheel regularly to see that
it is secure and has the prescribed tire pres-
sure.
The procedure for mounting the spare wheel is
described in "Mounting a wheel" (
Ypage 267).
The following should be checked regularly, par-
ticularly prior to long journeys:
Rthe tire pressure of the spare wheel, which
should then be corrected if necessary
(
Ypage 250).
Rthe fastenings of the spare wheel bracket.
The spare wheel is located in a spare wheel
bracket under the rear of the vehicle.
Replace the tires after 6 years at the latest,
regardless of wear. This also applies to the spare
wheel.
iIf you have mounted a spare wheel, the tire
pressure monitor (Ypage 253) will not func-
tion for this wheel. The spare wheel is not
equipped with a sensor for monitoring tire
pressure.
Removing and installing the spare
wheel
Cargo Van/Passenger Van
Bolt covers for the safety catches (example: Cargo
Van)
Removing
XOpen the rear doors.
XPlace a screwdriver into recesses ;and then
pry off covers :.
XUsing the lug wrench from the vehicle tool kit
(Ypage 240), unscrew the now visible bolts
counter-clockwise by approximately 20 turns.
Spare wheel carrier under the vehicle
XSlightly raise spare wheel bracket Aand
unhook left-hand retaining hook =.
XAssemble the pump lever for the jack and
slide it into sleeve?on spare wheel bracket
A.
XRaise spare wheel bracket Awith the pump
lever and unhook right-hand retaining hook
=.
XSlowly lower spare wheel bracket Adown to
the ground.
XLift spare wheel bracket Aslightly and pull
the pump lever out of sleeve ?.
Spare wheel in the spare wheel carrier
Spare wheel273
Wheels and tires
Z
XUse the pump lever to lift the spare wheel
beyond the rear edge of the spare wheel car-
rier.
XCarefully remove the spare wheel from sparewheel bracket A.
The spare wheel is heavy. When the spare
wheel is removed, the center of gravity
changes due to the heavy weight of the wheel.
The spare wheel may slip down or tip over.
Installing
XCarefully place the spare wheel onto spare
wheel bracket A.
The spare wheel is heavy. When you place the
spare wheel onto spare wheel bracket A, the
center of gravity changes due to the weight of
the wheel. The spare wheel may slip down or
tip over.
XSlide the pump lever for the jack into
sleeve ?on spare wheel bracket A.
XRaise spare wheel bracket Awith the pump
lever and attach right-hand retaining hook =.
XSlightly raise spare wheel bracketAand
attach left-hand retaining hook =.
XPull the pump lever out of sleeve ?.
XUsing the lug wrench, tighten the retaining
hook bolts by turning them clockwise.
XReplace and engage covers:.
XClose the rear doors.
Cab Chassis version
Removing
XLoosen fender nuts=manually and then
remove them.
XLoosen nuts ;as far as the thread end.
XSlightly raise spare wheel bracket ?and
unhook left-hand retaining hook :.
XAssemble the pump lever for the jack and
slide it into the sleeve on the right-hand side
of spare wheel bracket?.
XRaise spare wheel bracket ?with the pump
lever and unhook right-hand retaining
hook :.
XSlowly lower spare wheel bracket ?down to
the ground.
XLift spare wheel bracket ?slightly and pull
the pump lever out of the sleeve.
XUse the pump lever to lift the spare wheel
beyond the rear edge of spare wheel
bracket ?.
XCarefully remove the spare wheel from the
bracket.
The spare wheel is heavy. When the spare
wheel is removed, the center of gravity
changes due to the heavy weight of the wheel.
The spare wheel may slip down or tip over.
Installing
XCarefully place the spare wheel onto spare
wheel bracket ?.
The spare wheel is heavy. When you place the
spare wheel onto spare wheel bracket ?, the
center of gravity changes due to the weight of
the wheel. The spare wheel may slip down or
tip over.
XRaise spare wheel bracket ?with the pump
lever and attach right-hand retaining hook :.
XSlightly raise spare wheel bracket?and
attach left-hand retaining hook :.
XPull the pump lever out.
XTighten nuts;.
XPut fender nuts =in place and tighten them.
274Spare wheel
Wheels and tires