Page 198 of 292

Problem Possible causes/consequences and
0050 Solutions0077
US vehicles
only:
The yellow tire
pressure
monitor warning
lamp flashes for
60 seconds and
then remains lit. The tire pressure monitor has malfunctioned.
X
Have the tire pressure monitor and the wheels checked at a
qualified specialist workshop. 00BA
The yellow water
separator
indicator lamp
lights up when
the ignition is
started. The water that has collected in the water separator has reached
the maximum level.
X
Drain the water separator ( Y page 221).00BD
The yellow
washer fluid
level indicator
lamp for the
windshield
washer/
headlamp
cleaning system
lights up after
the engine is
started or while
the vehicle is in
motion. The water level is too low.
X
Top up washer fluid ( Y page 171).0082
The red seat belt
warning lamp
lights up for
approximately
six seconds
when the key is
turned to
position 2 in the
ignition lock.
A warning tone
also sounds. The warning lamp is to remind you to fasten your seat belt.
X
Fasten seat belt (Y page 34).196
TroubleshootingPractical advice
Page 210 of 292

Display messages Possible causes/consequences and
0050 Solutions0063
Check tire(s) The pressure of one or more tires has dropped significantly. If the
tire pressure monitor
has detected the affected wheel, the wheel
position is also displayed.
X Pull over immediately, paying attention to road and traffic
conditions.
X Check the tires.
X Repair or change the wheel if necessary ( Y page 222).
X Check the tire pressure and correct it if necessary
(Y page 280).
The display message disappears automatically after driving for
a few minutes with the corrected tire pressure. 0063
Warning Tire
defect One or more tires is losing air rapidly. If the tire pressure monitor
has detected the affected wheel, the wheel position is also
displayed.
X
Stop the vehicle without making any sudden steering or braking
maneuvers, paying attention
to the traffic conditions as you do
so.
X Repair or change the wheel (Y page 222). 0039
Check Immobilizer
Visit workshop The key is no longer working.
X
Visit a qualified specialist workshop. 00B7
Reserve fuel
Drive
to a gas station The fuel level has fallen into the reserve range.
X
Refuel at the nearest gas station ( Y page 142).003E
Doors open You are already driving at walking pace, even though not all the
doors are closed.
X
Close the doors. 00BA
Water in fuel
Visit workshop The water that has collected in the water separator has reached
the maximum level.
X
Drain the water separator ( Y page 221).00BD
Check wash. fluid
level The washer fluid level has dropped to approximately
1
/ 3 of the
reservoir capacity.
X Add washer fluid ( Y page 171).208
Troubleshooting
Practical 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