2017 MERCEDES-BENZ SPRINTER fuel cap release

Problems with the fuel and fuel tank
If your vehicle is losing fuel, the fuel lines or thefuel tank are defective.
XTurn the SmartKey immediately to position 0
in the ignition lock and remove it.
XDo not restart the engine under any circum-
stances.
XConsult a qualified specialist workshop.
If the fuel tank has been run dry, after refueling
carry out the following steps:
XBefore starting the engine: switch on the igni-
tion three or four times.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 117).
The % preglow indicator lamp in the instru-
ment cluster lights up briefly.
XOnce the %preglow indicator lamp goes
out, turn the SmartKey to position 3in the
ignition lock and release it as soon as the
engine is running.
You can start the diesel engine without preglow
when the engine is warm.
Diesel Exhaust Fluid (DEF)
Important safety notes
!Only use DEF in accordance with
ISO 22241. Never mix DEF with additives or
thin it with tap water. The exhaust gas after-
treatment may otherwise be damaged.
Observe the MB Specifications for Service
Products, Sheet 352.0.
Damage that results from the use of additives
or tap water leads to the loss of the New
Vehicle Limited Warranty.
!If DEF comes into contact with a painted or
aluminum surface, wash the surface off
immediately with plenty of water.
!DEF is not a diesel additive and must not be
mixed with fuel in the tank. Even small
amounts of DEF can cause engine damage.
Damage that results from the blending of DEF
will not be covered by the New Vehicle Limi-
ted Warranty.
iIf the outside temperature is below 12 ‡
(Ò11 †) it may be difficult to top up. If the DEF
is frozen and there is an active warning indi- cator, topping up may not be possible. Park
the vehicle in a warm place, e.g. in a garage,
until the DEF has become liquid again. Top-
ping up is then possible again. Alternatively,
have the DEF tank refilled at a qualified spe-
cialist workshop.
iIf you add DEF at temperatures below 12 ‡
(Ò11 †) it is possible that the level is not
shown correctly due to the frozen DEF.
Drive for at least 20 minutes (heating phase in
the tank activated) and then stop the vehicle
for at least 30 seconds. The level is then
shown correctly.
You will find further information on DEF in the
"Service products" section (
Ypage 273).
Refueling procedure
DEF filler neck
Non-lockable DEF filler cap
Example: DEF filler cap in the engine compartment
XTo open: switch off the ignition.
XOpen the hood (Ypage 214).
XTurn filler cap :counter-clockwise and
remove it.
XTo close: replace cap :on the filler neck and
turn it clockwise.
You will hear a click when cap :is fully
closed.
XClose the hood (Ypage 215).
126Refueling
Driving and parking

Weight information can be found in the “Per-
missible trailer and drawbar noseweights” sec-
tion (
Ypage 156).
iThe height of the ball neck changes accord-
ing to the load on the vehicle. If this is case,
use a trailer with a height-adjustable trailer
drawbar.
Driving tips
The maximum permissible speed for vehicle/
trailer combination depends on the type of
trailer. Before setting off, check the vehicle
documents of the your trailer to find out the
permissible maximum speed. Observe the
legally prescribed maximum speed for vehicle/
trailer combinations in the relevant country,
state or Canadian province.
When towing a trailer, your vehicle's handling
characteristics will be different in comparison to when driving without a trailer and it will con-
sume more fuel.
On long, steep downhill slopes you must select
shift range 3,2or 1in good time.
iThis also applies if cruise control is activa-
ted.
This enables you to utilize the engine's braking
effect and you do not need to brake so heavily to
keep the correct speed. which protects the
brake system and prevents the brakes from
overheating and wearing too quickly. If you need to brake additionally, to not depress the brake
pedal constantly, but periodically.
Driving tips
If the trailer begins to swing from side to side:
XDo not accelerate.
XDo not counter-steer.
XBrake if necessary.
iYou can reduce the risk of the trailer swing-
ing and rocking by retrofitting anti-roll bars or trailer stability programs. More information is
available from your authorized Sprinter
Dealer.
RMaintain a greater distance than you would
when driving without towing a trailer.
RAvoid sudden braking. Apply the brakes gen-
tly at first to allow the trailer brake to overrun.
Then, increase the brake force quickly.
RThe figures for the gradient climbing capabil-
ities from a standstill refer to sea level. When
driving in mountainous areas, note that the
power output of the engine, and with it its
gradient climbing capability, decrease with
increasing altitude.
Coupling up a trailer
Trailer coupled ready for use
XMake sure the selector lever of the automatic
transmission is in position P.
XApply the vehicle's parking brake.
XClose all doors.
XPosition the trailer horizontally behind your
vehicle.
iThe height of the ball neck changes accord-
ing to the load on the vehicle. In this case, use
a trailer with a height-adjustable trailer draw-
bar.
XCouple the trailer.
XEstablish all electrical and other connections to the trailer. When doing so, hook the break-
away cable of the trailer into eyelet :on the
ball coupling.
XRemove the objects that are preventing the
trailer from rolling, e.g. wheel chocks.
XRelease the trailer parking brake.
iThe subharness of the vehicle has a cable
connection to the brake lamp indicator lamp.
Observe the maximum permissible trailer
dimensions (width and length).
154Towing a trailer
Driving and parking

Radversely affect ride comfort
Rbe more susceptible to damage
Maximum tire pressures
:Maximum permitted tire pressure (example)
Never exceed the maximum permissible tire
inflation pressure. When adjusting the tire pres-
sures always observe the recommended tire
pressure for your vehicle (
Ypage 246).
iThe actual values for tires are specific to
each vehicle and may deviate from the values in the illustration.
Tire valve
GWARNING
Tire valve that are not approved for your vehi-
cle by the distributor named on the inside
cover page may result in a loss of tire pres-
sure. This may affect road safety. There is a
risk of an accident.
Only use tire valve that are approved for your
vehicle by the distributor named on the inside
cover page. Always make sure you have the
correct tire valve type for the tires on your
vehicle.
!Do not screw additional weights (check
valves, etc.) onto the tire valves. The elec-
tronic components could thus be damaged.
Only for vehicles without a tire pressure moni-
tor:
For safety reasons, Mercedes-Benz recom-
mends that you only use tire valves that have
been tested for use on your vehicle.
Checking the tire pressure manually
In order to determine and adjust the tire pres-
sures, proceed as follows:
XRemove the valve cap of the tire you wish to
check.
XPress the tire pressure gauge securely onto
the valve.
XRead the tire pressure and compare it with the
recommended value on the loading informa-
tion table or the tire pressure table
(
Ypage 246).
XIf the tire pressure is too low, increase it to the
recommended value.
XIf the tire pressure is too high, release air by
pressing down the metal pin in the valve. Use
the tip of a pen, for example. Then, check the
tire pressure again using the tire pressure
gauge.
XScrew the valve cap onto the valve.
XRepeat the steps for the other tires.
Tire pressure monitor
Important safety notes
GWARNING
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the pressure rec-
ommended by the vehicle manufacturer on
the Tire and Loading Information placard on
the driver's door B-pillar or the tire pressure
label on the inside of the fuel filler flap. If your
vehicle has tires of a different size than the
size indicated on the Tire and Loading Infor-
mation placard or the tire pressure label, you
should determine the proper tire pressure for
those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires
are significantly underinflated. Accordingly,
when the low tire pressure telltale illuminates,
you should stop and check your tires as soon
as possible, and inflate them to the proper
pressure. Driving on a significantly underin-
Tire pressure249
Wheels and tires
Z