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164 STARTING AND OPERATINGElectronic Brake Force Distribution (EBD)The electronic brake force distribution (EBD) prevents
the rear wheels from being overbraked when there is
little load on the rear axle or if there is not much friction
between the tires and road (e.g., if the road is wet).
Acceleration Skid Control Indicator Lamp (ASR)
and Brake Assist System (BAS)
1if equipped
When the key is in position 2 in the ignition lock, the
indicator lamp k will light up in the instrument
cluster as a function check. It goes out when the engine
is running.12500 Type vehicles only
WARNING!
If the brake indicator lamp ; (- ) does not
go out or lights up again while driving, the brake
fluid level may not necessarily have dropped be-
low the minimum filling capacity but a malfunc-
tion may have occurred in the EBD. In this case
continue driving, but with even greater care.
The wheels of the rear axle could lock if the
vehicle is braked hard. This could lead to a
skidding of the vehicle. Have the malfunction
traced and repaired without delay by an
authorized Sprinter Dealer.
Adapt your speed and driving style to the
prevailing road, traffic and weather conditions.
Driving too fast increases the risk of an accident.
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5
If the indicator lamp k remains on or lights up
when the engine is running, the acceleration skid
control (ASR) or the brake assist system (BAS) is
malfunctioning.
Then the ASR will be switched off automatically.
NOTE: If the ABS is malfunctioning or the voltage in
the vehicle’s electrical system drops below 10 volts, the
indicator lamp k will also light up in the instrument
cluster and the ASR and the BAS will be deactivated.
The indicator lamp will go out as soon as the voltage
reaches this level again or the ABS is operational again– the ASR and the BAS are then reactivated.
If a malfunction is present in the acceleration skid
control (ASR), the engine’s power output may be
reduced.
WARNING!
If the indicator lamp k remains on, the acceler-
ation skid control (ASR) or the brake assist system
(BAS) is malfunctioning .
Your vehicle’s handling characteristics can
change. Drive with extra caution.
Have the malfunction traced and repaired as soon
as possible by an authorized Sprinter Dealer.
Page 166 of 288

166 STARTING AND OPERATINGAcceleration Skid Control (ASR) Warning Lamp
and Electronic Stability Program (ESP)* – if
equippedWhen the key is in position 2 in the ignition lock, the
warning lamp v in the speedometer will light up
for about 2 seconds. It must go out when the engine is
running.
The warning lamp v flashes when:
The ASR or ESP is activated.
The drive wheels spin with the ASR shut off. *2500 type vehicles only
The warning lamp v lights up when the ASR is
shut off.
Deactivate the acceleration skid control, refer to
"Deactivating Acceleration Skid Control (ASR)".
WARNING!
If the warning lamp v in the speedometer
lights up or flashes:
Do not deactivate the acceleration skid control
(ASR)
.
Only depress the accelerator pedal as far as necessary when pulling away.
Ease off on the accelerator pedal when driving at a steady speed.
Adapt your speed and driving style to the prevailing road, traffic and weather conditions.
Failure to heed these warnings could cause the
vehicle to enter a skid and may result in an
accident.
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STARTING AND OPERATING 167
5
Acceleration Skid Control (ASR)ASR makes it possible to pull away and accelerate on a
slippery surface. A spinning wheel is braked and its
tractive power is transferred to the wheel with full
grip.
The acceleration skid control (ASR) improves driving
stability at all speeds only on vehicles of the chassis
and cargo/passenger vans type 3500 C/HC/SHC
(without ESP).
The engine’s torque is limited to improve driving
stability. When this is happening, the warning
lamp v in the speedometer flashes.
If the road surface is not capable of providing traction,
bearing in mind the tires, load and grade, it may not be
possible to pull away even with ASR.
If wheels with tires of a different size than those offered
by an authorized Sprinter Dealer are used, the correct
operation of the ASR cannot be guaranteed.
WARNING!
ASR cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded.
The ASR cannot prevent accidents, including
those resulting from excessive speed in turns,
following another vehicle too closely, or
hydroplaning. Only a safe, attentive, and skillful
driver can prevent accidents.
The capabilities of an ASR equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user’s safety
or the safety of others.
If the ASR function is used for a prolonged period
of time, the rear axle brakes may fail due to
overheating.
If the vehicle is to be towed away with the front
wheels clear of the ground, or if the brakes are to
be tested on a brake dynamometer, do not pull the
key in position 2 in the ignition lock, because the
drive wheels could lock.
Page 168 of 288

168 STARTING AND OPERATINGDeactivating the Acceleration Skid Control (ASR)See Section 4, Understanding Your Instrument Panel,
for switch locations. When driving with snow chains, in
deep snow, or on sand or gravel, it
can be beneficial to deactivate the
acceleration skid control (ASR).
The engine ’s torque is then no longer
limited and the drive wheels are free
to spin, which can help them cut into
loose surfaces.
The ASR can only be shut off with the engine running.
If the engine is shut off with the ASR deactivated, the
ASR is automatically re-activated after the engine is
started again. Vehicle Type 2500 only:
If there is a danger of skidding, and/or starting at a
speed of 38 mph (60 km/h) ESP activates ASR
automatically.
WARNING!
On a slippery road surface if both drive wheels
start to spin there is a risk of skidding. Adapt your
speed and driving style to the prevailing road,
traffic and weather conditions.
P54.25-0294-20
WARNING!
Vehicle type 2500 only:
Even when ASR is deactivated, ESP remains
active and regulates braking to improve stability
as necessary. The warning lamp
v flashes in
the speedometer.
The danger of your vehicle’s brake system
overheating and being damaged is increased
during long, demanding application of the
brakes. Furthermore, an overheated brake system
could result in a longer stopping distance.
Thus, only deactivate ASR if it is absolutely
necessary.
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170 STARTING AND OPERATINGFor the indicator lamp k refer to
"Indicator Lamp
Acceleration Skid Control (ASR) and Brake Assist
System (BAS)
" .
Indicator Lamp Electronic Stability Program (ESP)
(vehicle type 2500 only)When the key is in position 2 in the ignition lock, the
ESP indicator lamp will light up in the instrument
cluster as a function check. It goes out when the engine
is running.
If the indicator lamp remains on or lights up when
the engine is running, the electronic stability program
(ESP) is malfunctioning and switched off
automatically. The engine’s power output may be then
reduced.
WARNING!
The Brake Assist system (BAS) cannot prevent the
natural laws of physics from acting on the vehicle,
nor can it increase braking efficiency beyond that
afforded by the condition of the vehicle brakes
and tires or the traction afforded.
The BAS cannot prevent accidents, including
those resulting from excessive speed in turns,
following another vehicle too closely, or
hydroplaning. Only a safe, attentive, and skillful
driver can prevent accidents.
The capabilities of an BAS equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user’s safety
or the safety of others
.
Adapt your speed and driving style to the
prevailing road, traffic and weather conditions.
Driving too fast increases the risk of an accident.
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5
NOTE: If the ABS is malfunctioning or the voltage in
the vehicle’s electrical system drops below 10 volts, the
indicator lamp will also light up in the instrument
cluster and the ESP will be deactivated. The indicator
lamp will go out as soon as the voltage reaches this
level again or the ABS is operational again
– the ESP is
then reactivated.
Electronic Stability Program (ESP) (vehicle type
2500 only)The Electronic Stability Program (ESP) monitors the
vehicle’s traction (force of adhesive friction between
the tires and the road surface) and handling.
The ESP recognizes when a wheel is spinning or if the
vehicle starts to skid. By applying brakes to the
appropriate wheel and by limiting engine output, the
ESP works to stabilize the vehicle. The ESP is especially
useful while driving off and on wet or slippery road
surfaces.
The warning lamp v in the speedometer flashes
when the ESP is engaged, refer also to
"Warning Lamp
Acceleration Skid Control (ASR) and Electronic
Stability Program (ESP)
".
If wheels with tires of a different size than those offered
by an authorized Sprinter Dealer are used, the correct
operation of the ESP cannot be guaranteed.
WARNING!
If the ESP indicator lamp remains on, the
electronic stability program (ESP) is malfunction-
ing. The vehicle stability will no longer be auto-
matically regulated in good time.
The danger that your vehicle breaks into a skid, is
increased in certain driving situations. Drive with
extra caution.
Have the ESP repaired as soon as possible by an
authorized Spinter Dealer.
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172 STARTING AND OPERATING
AUXILIARY DRIVE (OPTIONAL)1. Auxiliary drive
2. Ribbed V-belt (not part of factory package)
3. Tensioner pulley
4. Support
5. Unit (not part of factory package)
NOTE: When retrofitting a unit pay attention to the
running direction of the engine.
WARNING!
ESP cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded.
The ESP cannot prevent accidents, including
those resulting from excessive speed in turns,
following another vehicle too closely, or
hydroplaning. Only a safe, attentive, and skillful
driver can prevent accidents.
The capabilities of an ESP equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user’s safety
or the safety of others.If the vehicle is to be towed away with the front
wheels clear of the ground, or if the brakes are to be
tested on a brake dynamometer, do not put the key
in position 2 in the ignition lock because the ESP
would engage the brakes to stabilize the vehicle.If the ESP function is used for a prolonged period
of time, the rear axle brakes may fail due to
overheating.