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Problem Possible causes/consequences and
0050 SolutionsThe key cannot be
turned in the ignition
lock. The vehicle voltage is too low.
X
Switch off all non-essential consumers, e.g. the seat heating,
interior lighting, and try to turn the key again.
If this does not work:
X Check and, if necessary, replace the starter battery.
or
X Jump-start the vehicle.
or
X Consult a qualified specialist workshop. The key cannot be
turned in the ignition
lock. The steering lock has jammed mechanically.
X
Remove the key and insert it again into the ignition lock. Turn
the steering wheel from side to side while doing so. Headlamps and turn signals
G
Warning
The operating safety of your vehicle could be jeopardized if maintenance work is carried out
incorrectly. As a
result, you could lose control of the vehicle and cause an accident. In addition,
the safety systems may no longer be able to protect you or others as they are designed to do.
Always have maintenance work carried out at a qualified specialist workshop. The qualified
specialist workshop must have the necessary specialist knowledge and tools to carry out the
work required. We recommend visiting an authorized Sprinter Dealer. In particular, work relevant
to safety or on safety-related systems must be carried out at a qualified specialist workshop. Problem Possible causes/consequences and
0050 SolutionsThe headlamps are
fogged up
on
the inside. Air humidity is very high.
X
Drive with the headlamps switched on.
The headlamps are clear after a short distance. The headlamps are
fogged up
on
the inside. The headlamp housing is not sealed and moisture has been able
to enter.
X
Have the headlamps checked at a qualified specialist workshop. Windshield wipers
G
Warning
The operating safety of your vehicle could be jeopardized if maintenance work is carried out
incorrectly. As a
result, you could lose control of the vehicle and cause an accident. In addition,
the safety systems may no longer be able to protect you or others as they are designed to do. Troubleshooting
219
Practical advice
Z
Page 236 of 292

Do not change Xenon bulbs yourself, but have
them replaced at a qualified specialist
workshop which has
the necessary specialist
knowledge and tools to carry out the work
required.
We recommend an authorized Sprinter Dealer
for this purpose. In particular, work relevant
to safety or on safety-related systems must
be carried out at a qualified specialist
workshop.
R To prevent short circuits, switch off the
lighting system before changing a bulb.
R Only touch new bulbs with a clean, lint-free
cloth or similar. Do not work with wet or
greasy fingers.
R Only install 12 V bulbs of the same type and
of the correct wattage.
R Have the headlamp setting checked
regularly.
R If the new bulb still does not light up consult
a qualified specialist workshop, e.g. an
authorized Sprinter Dealer.
R Have the following LEDs and bulbs replaced
at a qualified specialist workshop, e.g. an
authorized Sprinter Dealer:
-the additional turn signals in the exterior
mirrors
- the high-mounted brake lamp
- the Bi-Xenon bulbs
- the fog lamps
! Make sure the bulbs are always securely
installed. Changing bulbs
Front bulbs Lights Bulb type
0046
Additional turn signal
lamps in the exterior
mirrors PY 16 W
0047
Turn signal lamps PY 21 W
008A
Halogen headlamps:
low-beam headlamps H7 55 W
Bi-Xenon headlamps:
low-beam/high-beam
headlamps D1S–35 W
0088
Halogen headlamps:
high-beam headlamps H7 55 W
Cornering lamps H7 55 W
0086
Fog lamps H11 55 W
0087
Parking lamps/
standing lamps WY 5 W234
Electrical system
Practical advice
Page 237 of 292

High-beam headlamps/cornering lamps,
low-beam headlamps, fog lamps
X
Switch off the lights.
X Open the hood (Y page 168).
X Press catches 0046 down.
X Lift housing cover 0047 in the direction of the
arrow and remove it. 008A
Low-beam headlamps
0088 Halogen low-beam headlamp/Xenon
cornering lamp headlamp
X Disconnect the connector from the bulb.
X Detach the retainer spring and remove the
bulb.
X Insert the new bulb so the base fits into the
recess of the socket.
X Attach the retainer spring and connect the
plug to the bulb.
X Insert housing cover 0047 into the lower
mounting points. X
Fold housing cover 0047 against the
headlamp casing.
X Push catches 0046 up until you feel them
engage.
Turn signal lamps X
Switch off the lights.
X Open the hood (Y page 168).
X Turn bulb holder 0046 counter-clockwise and
remove it.
X Turn the bulb counter-clockwise by
pressing lightly and pull it out of bulb
holder 0046
.
X Press a new bulb into bulb holder 0046 and
screw in clockwise.
X Insert bulb holder 0046 into the
lamp and turn
it clockwise.
Parking lamps and standing lamps X
Switch off the lights.
X Open the hood (Y page 168).
X Turn cap 0046 counter-clockwise and remove
it. Electrical system
235
Practical advice Z
Page 244 of 292

No. Consumer Fuse
rating 22 Brake system (ABS) 5 A
23 Starter motor 20 A
24 Engine components 10 A
25 12 V socket in the center
console 25 A
Fuse block F55/1
No. Consumer Fuse
rating 1 Left door control unit 25 A
2 Diagnostics socket 10 A
3 Brake system (valves) 25 A
4 Brake system (delivery
pump) 40 A
5 Terminal 87 (5) engine 7.5/10 A
6 Terminal 87 (6) engine 7.5/10 A
7 Headlamp cleaning
system 30 A
8 Anti-theft alarm system
(ATA) 15 A
9 Additional turn signal
module 10 A
Fuse block F55/2
No. Consumer Fuse
rating 10 Radio 15 A
11 Mobile phone 7.5 A
12 Blower, front/auxiliary
heating blower setting 1 30 A
13 Auxiliary heating digital
timer, radio receiver/
basic wiring DIN-
slot 7.5 A No. Consumer Fuse
rating 14 Seat heating 30 A
15 Unassigned —
16 Heating, rear-
compartment heating/
front-compartment air
conditioning/CD player 10 A
17 Motion detector/
convenience lighting 10 A
18 Rear-compartment air-
conditioning system 7.5 A
Prefuse box in the battery compartment in the
driver's footwell F59
No. Consumer Fuse
rating 1 Preglow relay/
secondary air pump 80/40 A
2 Air-conditioning system
cooling fan, cab 60/40 A
3 Signal acquisition and
actuation module
(SAM)/fuse-relay box
(SRB) 80 A
4 Auxiliary battery/
retarder 150 A242
Electrical systemPractical advice
Page 289 of 292
Capacities
Engine with oil
filter Fuel tank DEF tank Cooling
system Windshield/
headlamp
cleaning
system
Engine oil ULTRA-LOW
SULFUR DIESEL Diesel Exhaust
Fluid (DEF)
19 Coolant
20 Washer fluid
with windshield
washer
concentrate
13.21 US qt
(12.5 l) 25.0 US gal
(100 l)
21 3.2 US gal
(12.0 l)/
4.9 US gal
(18.5 l)/
5.8 US gal
(22.0 l)
22 10.75 US qt
(10.0 l) Approx. 6.3 US qt
(6.0 l) 19
DEF according to ISO 22241 . Observe MB Specifications for Service Products,
Sheet No. 352.0.
20 When the coolant is being renewed, the coolant must contain 50 % by volume of anticorrosion/antifreeze
agent. This is equivalent to antifreeze protection down to –34.6 ‡ (–37 †). Do not exceed a ratio of
55 % by volume (antifreeze protection down to approximately –49.0 ‡ (–45 †). Heat dissipation is otherwise
insufficient. Observe the MB Specifications for Service Products, Sheet No. 310.1.
21 Including a reserve of 5.3 US gal (20 l).
22 Chassis Cab only. Capacities
287
Technical data Z