2012 MERCEDES-BENZ SPRINTER engine overheat

G
Warning
Never switch off ASR when you see the
0067 warning lamp
flashing in the instrument
cluster. In this case proceed as follows:
R when driving off, apply as little throttle as
possible.
R while driving, ease off the accelerator
pedal.
R adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid. ESP ®
cannot
prevent accidents resulting from excessive
speed.
If, taking tires, cargo load and gradient into
consideration, the surface driven on still
provides insufficient traction, you may
experience difficulties in pulling away despite
ASR.
Vehicles without steering-wheel buttons:
the 003D indicator lamp in the instrument
cluster lights up when you switch on the
ignition. It goes out when the engine is
running.
Activating/deactivating ASR G
Warning
ASR should
not be switched off during normal
driving other than in the circumstances
described below. Deactivating

the system will
reduce vehicle stability in driving maneuvers.
Do not switch off ASR when a spare wheel is
mounted.
ASR is activated automatically when the
engine is running.
It may be best to deactivate ASR briefly in the
following situations:
R when using snow chains
R in deep snow
R on sand or gravel If you deactivate ASR:
R
the engine's torque

is no longer limited and
the drive wheels can spin. The spinning of
the wheels results in a cutting action, which
provides better grip.
R brake intervention will continue to improve
traction where a drive wheel begins to spin,
e.g. if only the side of the road is slippery.
The wheel will be braked to increase
traction under such circumstances.
R active brake intervention by ESP ®
to
increase driving stability remains active. G
Warning
Even with ASR deactivated, ESP ®
remains
active and continues to perform brake
interventions where this is necessary to
improve driving stability. The 0067 warning
lamp flashes.
With ASR deactivated, there is an increased
risk of your vehicle's brake system
overheating and suffering damage due to
prolonged application. A

hot brake system will
also result in increased stopping distance.
Therefore, only deactivate ASR when
absolutely necessary. X
Press button 0046
.
When ASR is

deactivated, the 0067 warning
lamp in the instrument cluster lights up. Driving safety systems
49
Safety Z

may be highly flammable and could explode if
heated.
In particular, make sure that the containers
described above are not placed in the hot air
flow from the

auxiliary heating system. Do not
stow such containers directly next to or on top
of the heater.
You could otherwise endanger yourself and
others.
The auxiliary heating system operates
independently of the engine and
complements the vehicle heating or air
conditioning.
You can set the auxiliary heating at an outside
temperature of up to 39 ‡ (4 †) in order to:
R pre-heat the vehicle interior
R additionally warm the coolant, thereby
conserving the engine and saving fuel
R support the vehicle's heating system while
the engine is running and outside
temperatures are low (heater booster
function)
i If the outside temperature rises above
39 ‡ (4 †), the auxiliary heating and heater
booster function switch off automatically.
! Switch on the auxiliary heating system at
regular intervals (at least once a month) for
approximately 10 minutes.
Make sure that the flow of hot air is not
blocked. Otherwise, the auxiliary heating
will overheat and switch off.
i If the interior motion sensor ( Y page 62)
is armed and the auxiliary heating is
switched on, it is possible that the interior
temperature monitoring may cause a false
alarm. In this case, either deactivate the
interior motion sensor or switch off the
auxiliary heating. Before switching on X
The fuel tank must be at least one-quarter
full.
X Set the desired temperature using the
temperature control of the heating or the
air-conditioning system (Y
page 100).
X Set the air distribution as required
(Y page 102).
X Open the center and side air vents and set
them to the middle position (Y page 101).
i The auxiliary heating automatically
switches to heater booster mode after the
engine is started.
Operating using the switch 0046
To switch the auxiliary heating on/off
0047 To switch the heater booster function on/
off (Y page 107)
X To switch on the auxiliary heating: press
the 0086

switch for longer than two
seconds.
R The auxiliary heating heats or ventilates
the interior to the temperature that you
have set.
R The blower switches to the lowest speed.
R The red indicator lamp in the switch
comes on. Climate control
105
Controls Z

X
Make sure that the automatic transmission
is set to position P.
X Engage the vehicle's parking brake.
X Close the rear doors.
X Couple the trailer.
X Establish all electrical connections. Trailer coupled ready for use
Towing a trailer
There are numerous legal requirements
concerning the
towing
of a trailer, e.g. speed
restrictions. Make sure that your vehicle/
trailer combination complies with the local
requirements not only in your area of
residence but also at any location to which
you are traveling. The police and local
authorities can provide reliable information.
Please observe the following when towing a
trailer:
R To acquaint yourself with driving with a
trailer and with the resulting changes to
handling, you should practice cornering,
stopping and reversing in a traffic-free
location.
R Before driving, check:
-trailer coupling
- safety switch for braked trailers
- safety chains
- electrical connection
- lights
- wheels R
Adjust the exterior mirrors to provide an
unobstructed view of

the rear section of the
trailer.
R If the trailer has electronically controlled
brakes, pull away slowly, brake manually
using the brake controller and check that
the brakes are functional.
R Secure any objects on the trailer to prevent
the cargo from slipping when the vehicle is
in motion.
R If you couple up a trailer, regularly check
that the cargo is secure and make sure that
the trailer lamps and (if applicable) the
trailer brakes are functioning correctly.
R Bear in mind that the handling will be less
stable when towing a trailer than when
driving without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly and has a
decreased gradient climbing capability and
a longer braking distance.
It is more susceptible to crosswinds and
requires cautious steering.
R If possible, do not brake abruptly; apply the
brakes moderately to begin with to allow
the trailer to activate its brakes. Then
increase the pressure on the brake pedal.
R If the automatic transmission repeatedly
shifts between gears when driving on
inclines, restrict the shift range. Select shift
range 4, 3, 2 or 1.
Driving in a low gear and at a low speed
reduces the risk of damaging the engine.
R When driving on a downhill gradient, shift
to a low gear and take advantage of the
engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases
dramatically while the air-conditioning
system is switched on, switch off the air-
conditioning system. Transporting loads with the vehicle
151
Operation Z

Problem Possible causes/consequences and
0050 Solutions00B4
The yellow
engine oil level
warning lamp
lights up
repeatedly while
the vehicle is in
motion. There is a malfunction in the engine oil level display.
X
Have the vehicle checked immediately at a qualified specialist
workshop. 0041
The yellow
coolant level
warning lamp
lights up while
the engine is
running. The coolant level is too low.
Never run the engine if the coolant level is too low. The engine
could overheat and be damaged.
X
Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Switch off the engine and let it cool down.
X Add coolant and be sure to observe the warning notes
(Y page 169).
X If you need to add coolant frequently, have the cooling system
checked at a qualified specialist workshop. 00AE
The red coolant
warning lamp
lights up while
the engine is
running. The coolant temperature is too high.
X
Stop the vehicle as soon as possible, paying attention to road
and traffic conditions.
X Consult a qualified specialist workshop. 00AE
The red coolant
warning lamp
lights up while
the engine is
running. The coolant temperature is too high.
If the vehicle is stopped after being subjected to extreme loads
(e.g. driving in mountainous terrain, trailer towing), the coolant
warning lamp may
light up when the ignition is switched on or the
engine is restarted.
X Run the engine for approximately one minute at idling speed.
X Consult a qualified specialist workshop if the coolant warning
lamp remains lit. 00B7
0080
The yellow
reserve fuel
warning lamp
lights up while
driving. The fuel level has fallen into the reserve range.
X
Refuel at the nearest gas station ( Y page 142). Troubleshooting
193
Practical advice Z

Display messages Possible causes/consequences and
0050 Solutions00BE
Check coolant
level The coolant level is too low.
Never run the engine if the coolant level is too low. The engine
could overheat and be damaged.
X
Add coolant, observing the warning notes while doing so
(Y page 169).
X Have the coolant system checked at a qualified specialist
workshop if the
coolant needs topping up more often than usual.003E
Hood open You are already driving at walking pace, even though the hood is
not closed.
X
Close the hood. 00B4
Engine oil
Add

1.0
quart(Canada: 1.0
liter) The oil level is too low.
X
Check the oil level the next time you refuel ( Y page 171), and
top up the oil. 00B4
Engine oil level
Not when eng.
running You want to check the oil level even though the engine is running.
X
Switch off the engine.
X Check the oil level (Y page 171). 00B4
Engine oil level
Reduce oil level You have added too much engine oil. There is a risk of damaging
the engine or catalytic converter.
X
Siphon off excess oil until the oil is at the specified level.
Observe the legal requirements. 00B4
Engine oil level
Stop, turn engine
off There is not enough oil, or no oil in the engine. There is a danger
of engine damage.
X
Pull over immediately, paying attention to road and traffic
conditions.
X Check the oil level with the oil dipstick ( Y page 172).
If the oil level is OK: have the malfunction repaired
immediately at a qualified specialist workshop.
If the oil

level is too low: have the vehicle towed to a qualified
specialist workshop. 00B4
Oil sensor Visit
workshop The measuring system is malfunctioning.
X
Have the measuring system checked at a qualified specialist
workshop. 006D
Please enter PIN: You have not yet entered your PIN in the mobile phone.
X
Enter the PIN for the SIM card. Troubleshooting
207
Practical advice Z

X
Hook tire sealant bottle 006F into the upper
vent hole in the wheel using hook 0072.
X Push angled connecting piece 0074 located
on the hose of tire sealant filler bottle 006F
as far
as
it will go on to valve core extractor
0071 and fix it in place.
X Make sure that the pressure release screw
on pressure gauge 0086 is closed.
X Connect connector 0087 to the 12 V socket
(12 V, 25 A, 300 W) on the center console
(Y page 133).
! Only use the 12 V socket on the center
console to connect the electric air pump.
You could otherwise damage the vehicle's
electrics.
X Start the engine.
X Press I on tire inflation compressor
switch 0046.
The tire inflation compressor is activated.
The tire
sealant

is then pumped into the tire
and the tire pressure is increased. Let the
tire inflation compressor run for at least 10
minutes until tire sealant bottle 006F is
completely empty and the tire pressure is
at least 43.5 psi (3.0 bar).
! Do not
run

the electric air pump for longer
than 20 minutes without a break; otherwise
it may overheat.
The air pump can be used again once it has
cooled down.
X Inflate the tire using the tire inflation
compressor until the recommended tire
pressure ( Y page 281) is reached.
X Then, press 0 on tire inflation compressor
switch 0046.
The tire inflation compressor is
deactivated.
X Slide knob 0073 quickly to the stop in valve
core extractor 0071.
X Turn knob 0073 clockwise
until
the valve core
is firmly screwed into tire valve 0075.i
Do not pull the valve core extractor from
the tire valve while the valve core is
unscrewed from the

tire valve. Tire sealant
could otherwise escape and make you
dirty.
The tire sealant is water-soluble. If tire
sealant escapes, you can wash it away with
water.
X Pull knob 0073 out of valve core extractor
0071 as far as it will go.
X Unscrew valve core extractor 0071 counter-
clockwise from tire valve 0075.
X Screw valve extension 0070 onto tire valve
0075 and tighten it.
X Screw the valve cap onto valve extension
0070.
After filling with tire sealant, ( Y page 228).
Twin tires, outer wheel The tire valve is located on the inside of the
outer wheel and should be positioned
horizontally on the left side of the wheel for
the repair process.
Valve tool with handle and turning piece226
Wheels and tires
Practical advice