PDF Operating Instructions Manual Mercedes-Benz Citaro Bus - 668 KB
This is the official operating instructions manual for the Mercedes-Benz Citaro city bus, covering Euro 4, Euro 5, and EEV models.
It is an essential guide for drivers, covering all aspects of the vehicle's controls, dashboard indicators, and passenger systems.
Adherence to these instructions ensures safe, efficient, and comfortable public transport operations.
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CITARO (Euro 4/5/EEV)/07.2010 GB 1
--- Page 3 ---
Vehicle identification
No. Designation Value
6 Permissible gross
weight (country-
specific)
7 Permissible gross
combination
weight (country-
specific)
8 Permissible
M00_01-0003-01
M00_01-0005-11 front axle load
The vehicle identification plate with the (country-specific)
No. Designation Value
vehicle identification number (VIN) and
data concerning permissible weights is 9 Permissible axle
located on the forward structure near 1 Vehicle model load for 2nd axle
the front entrance. 2 Headlamp basic (country-specific)
setting 10 Permissible axle
Note: 3 Exhaust gas coef- load for 3rd axle
It is very important to identify the vehicle ficient (country-specific)
exactly so that the correct “vehicle data” 4 Vehicle manufac- 11 Permissible axle
can be assigned. You will also need the load for 4th axle
turer
VIN when ordering replacement parts and (country-specific)
making technical enquiries. 5 Vehicle Identi-
fication Number 12 Permissible tech-
(VIN) nical gross weight
CITARO (Euro 4/5/EEV)/07.2010 GB 1
--- Page 4 ---
General
Table of contents
Preparation for the journey - daily tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Preparation for the journey - weekly tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General bus care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Care and cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CITARO (Euro 4/5/EEV)/07.2010 GB 11
--- Page 5 ---
Operation
Driving
back to its initial position (0) before the Driving
next starting attempt. Introduce a pause Environmental protection
(approximately 15 minutes) after three
Never leave the engine to warm up with Environmental protection
starting attempts. Release the key after
the bus stationary. Instead, drive off and
the engine has started, release the accel- Never leave the engine to warm up with
operate the engine at moderate engine
erator pedal. Observe the indicator lamps the bus stationary. Instead, drive off and
speeds.
immediately after the engine has started. operate the engine at moderate engine
If no malfunction is indicated, it is pos- speeds.
sible to pull away.
Note:
The engine should not be placed under Note:
Danger. full load until it has reached normal op-
The engine should not be placed under
erating temperature (75 °C to 90 °C de-
Never lock the steering while the bus is full load until it has reached normal op-
pending on operating conditions and the
in motion. Whenever you disembark, even erating temperature (75 °C to 90 °C de-
outside temperature).
for a short time, always remove the key pending on operating conditions and the
so that the bus cannot be started by chil- outside temperature).
dren or other unauthorised persons.
Danger.
Caution: All doors must be unlocked before the
It is prohibited to increase the engine bus is driven off.
speed while the “Oil pressure too low”
symbol is shown on the display screen.
If the “Oil pressure too low” symbol ap-
pears for more than 10 seconds, turn off
the engine immediately and establish the
cause.
CITARO (Euro 4/5/EEV)/07.2010 GB 21
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Operation
Brake system operating/malfunction displays
Brake system operating/malfunc-
Note: tion displays
If the supply pressure falls below 6.8 bar, “Parking brake applied” indication
the “Brake pressure/supply pressure” display (A)
display is automatically displayed on the
screen and the warning lamp for the yel-
low warning level lights up.
M54_00-1162-71
The following appears on the screen:
“Supply pressure” (B) present in
brake circuits 1 and 2.
M54_00-0232-01
Note:
The maximum supply pressure (B) for
brake circuits 1 and 2 is approximately
10 bar.
CITARO (Euro 4/5/EEV)/07.2010 GB 31
--- Page 7 ---
Operation
Winter operation with diesel fuels for buses with fuel-lubricated injection systems
Disposal of AdBlue Winter operation with diesel fuels
for buses with fuel-lubricated Note:
Environmental protection injection systems Please observe the further notes in the
WARNINGS: text.
Observe country-specific legislation and
requirements governing the disposal of
AdBlue. Further notes on winter operation with
Danger.
diesel fuel can be found on Mercedes-
AdBlue purity Risk of fire and explosion. Petrol must Benz Specifications for Service Products
never be mixed with diesel fuel. sheet 137.0.
Note:
It is prohibited to return to the tank any Danger.
AdBlue that has been pumped out, e.g.
Risk of fire and explosion. If paraffin has
during a repair, because the purity of the
already separated and this has caused
liquid would no longer be guaranteed.
operational malfunctions, do not under
any circumstances heat components using
sources of heat, e.g. heaters, heat radiat-
ors, hot air blowers or blow torches. Risk
of damage to components. Risk of fuel
escaping.
CITARO (Euro 4/5/EEV)/07.2010 GB 41
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Operation
Operating/malfunction displays: fuel system
Exhaust gas cleaning malfunction Fault in the exhaust gas cleaning
system Note:
The indicator lamp is located in the in-
strument cluster.
The malfunction indicator lamp lights up
Danger.
in the event of a malfunction in the ex- The malfunction indicator lamp flashes
haust gas cleaning system (SCR system). in the event of a fault in the exhaust gas Have NOx faults rectified immediately by
cleaning system (display if permissible an EvoBus Service Partner.
Note: NOx values exceeded) or if the AdBlue
supply tank runs empty. If the malfunc- Engine torque reduction
The indicator lamp is located in the in-
tion message was triggered by the Ad-
strument cluster.
Blue supply tank running empty, it is
necessary to top up the AdBlue level im-
mediately. If the AdBlue supply tank has
Danger.
run empty, the driver must have actively In the event of an NOx fault (display
Have the malfunction rectified by an Evo- acknowledged the AdBlue level operating if permissible NOx concentration ex-
Bus Service Partner immediately. display (see above) at some time previ- ceeded), engine torque will be reduced
ously. the next time the bus moves off from
stationary. In this situation, a fault is
also present in the exhaust gas clean-
ing system, i.e. the malfunction indicator
lamp flashes. If the fault was caused by
the AdBlue supply tank running empty,
the AdBlue level operating display (see
CITARO (Euro 4/5/EEV)/07.2010 GB 51
--- Page 9 ---
Operation
Pulling out/sliding in the platform
Danger. Note:
The bus must not be moved while the “Wheelchair” symbol (B) is displayed when
ramp is in the extended position. the ramp has been requested.
The ramp indicator lamp in the in-
strument cluster lights up.
M72_00-0405-71
Release flap lock (1) (turn clock-
wise).
Note:
M72_00-0401-71
If the electrical system is switched on, Release the platform.
releasing flap lock (1) on ramp cover flap
(2) activates the bus stop brake.
M54_00-1356-71tif Danger.
The following is shown on the screen: Risk of entrapment
“Ramp extended” (C).
Fold ramp cover flap (2) open in the
direction of the arrow and briefly
push it down.
CITARO (Euro 4/5/EEV)/07.2010 GB 61
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Operation
Malfunction display: yellow warning level A
Removing stains Malfunction display: yellow warning
Caution: level A
Caution: The covers must be completely dry before
they are used again. Permanent pressure
Remove dirt as quickly as possible to marks could otherwise form.
avoid permanent stains and prevent dam-
age to the covers.
Finally, brush the cover and the
cleaned areas using a soft brush
Remove as much dirt as possible
following the nap of the fabric.
using a lint-free cloth.
Work mild, lukewarm soap into the
Caution:
dirt using a soft sponge in circular
movements from the outside in. Ap- If in any doubt, use a professional textile
ply light pressure when doing this. cleaning company.
M54_00-1051-01
Malfunctions indicated by warning level
Note:
A are displayed on screen (23) immedi-
Always work on the dirt from the outside ately in conjunction with yellow warning
in so that the dirt is not spread over the lamp (14). No warning signal sounds.
fabric.
Remove the soap used using a clean, Caution:
soft sponge. In the event of a malfunction of this
Wait until the freshly cleaned areas warning level, it is permissible to drive on
carefully but the bus should be checked
are completely dry.
by an EvoBus Service Partner at the
earliest opportunity.
CITARO (Euro 4/5/EEV)/07.2010 GB 71
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At a glance
Switches on the right section of the instrument panel
No. Description Page No. Description Page Switches on the right section of the
instrument panel
1 Sign box illumina- 7 Hazard warning
tion switch lamps switch Note:
1 Driver's area light- 8 Exterior loud- The overview shows the maximum utilisa-
ing switch speaker on/off tion of the instrument panel with switches
switch and instruments in their intended posi-
2 Passenger com- tions. Switches can be assigned to anoth-
partment night 9 Communications er position on the instrument panel if this
lighting switch radio 1/2 switch has been specified in the order.
2 Raise bus above 9 Communications
normal level push- radio tone
button call/speak
3 Retarder on/off pushbutton
switch (customer 10 Rotary light switch
102
option)
11 Passenger-com-
4 Retarder direct partment light-
on/off switch ing position I+II
(customer option) switch
5 ASR (acceleration 12 Payment tray light-
skid control) OFF ing switch
pushbutton
6 Steering limiter
pushbutton
CITARO (Euro 4/5/EEV)/07.2010 GB 81
--- Page 12 ---
At a glance
Instrument cluster
No. Description Page No. Description Page
1 Speedometer 9 Hazard warning
lamps indicator
2 Display for total
lamp
distance record-
er/trip meter 10 Not assigned
3 To reset the trip 11 Not assigned
meter
12 Ramp indicator
4 Red warning level lamp
malfunction lamp
13 Engine malfunc-
5 Yellow warning tion indication
level malfunction lamp (MIL)
lamp
14 Screen (display)
6 Turn signals/haz-
ard warning lamps
indicator lamp
7 Headlamp flasher/
main-beam indic-
ator lamp
8 Brake system mal-
function indicator
lamp
CITARO (Euro 4/5/EEV)/07.2010 GB 91
--- Page 13 ---
Driver's area controls
Table of contents
Emergency braking in the event of failure of both brake circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Activating/deactivating the bus stop brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Drive-off lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Important notes on the steering system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Adjusting the steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Turning the steering wheel when the bus is stationary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Opening/closing the driver's window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Switching the mirror and window heating on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Switching the windscreen heating (option) on/off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
CITARO (Euro 4/5/EEV)/07.2010 GB 101
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Driver's area controls
Screen: description
Screen: description Screen (14) can also be used to display
on-board diagnostics information. Screen Note:
(14) is activated whenever the following If the exterior lighting is switched on,
functions are switched on: electrical sys- screen (14) shows the display in inverse
tem, door opened from outside, exterior video (highlighted). If a malfunction oc-
lighting, interior lighting, hazard warning curs, this malfunction is displayed only
lamps, radio call. if the key is in the drive position in the
ignition starter switch.
Note:
The messages for the operating informa- Note:
tion and malfunction information are dis-
played in the language selected Also displayed is information from the
M68_00-0203-71
computer-controlled operation manage-
ment system (option).
Screen (14) is a status indicator for dis-
playing operating and malfunction in- Note:
Screen sequence
formation. To provide the driver with in- After the electrical system has been
formation in an organised manner, the switched on, each of the operating
operating information is divided into displays is displayed automatically in
three display types: 1.) Operating dis- succession.
plays, 2.) Displays in driving mode, 3.)
Displays in bus stop mode. For malfunc-
tion information, a distinction is made
between major and minor malfunctions.
Malfunction information is subdivided in-
to four warning levels: 1.) Red warning
level, 2.) Yellow warning level A, 3.) Yel-
low warning level B, 4.) Warning level C.
CITARO (Euro 4/5/EEV)/07.2010 GB 111
--- Page 15 ---
Driver's area controls
CITARO (Euro 4/5/EEV)/07.2010 GB 121
--- Page 17 ---
Driver's area controls
Malfunction displays: yellow warning level A - overview
14 Auxiliary steering malfunction
Danger. (buses with trailing axle only)
Note: 15 Oil level too low, check oil
With increased caution, it
is possible to continue to level
Depending on the type of
drive the bus (route can be 15 Engine oil replenishment fail-
malfunction, the same sym-
bol may be displayed with a completed). The bus must ure. Oil level too low, check
different malfunction text, see then be inspected as soon oil level. (Only in buses with
symbol (15) for example. as possible in the workshop. automatic oil replenishment)
Braking performance may be 15 Oil level too high, check oil
1 ABS/ASR failure
affected. Traction could be level
limited on slippery surfaces.
Note: 2 Parking brake malfunction Caution:
If the “Bus stop brake mal- 3 Retarder malfunction There is a risk of engine dam-
function” message is also
displayed on the screen, the
4 Bus stop brake malfunction age if the oil level is too low
5 Undervoltage or too high. For this reason,
bus stop brake is no longer
correct the oil level at the
operational. 6 No battery charge earliest opportunity.
1 ASR trailing axle malfunction 7 No battery charge
(buses with four axles only) 8 No battery charge Note:
9 Fuel level too low Observe the “Display mode:
10 Supply pressure too low bus stop mode - overview”
11 Level control malfunction section.
12 Entry aid malfunction 16 Air drier malfunction
13 Anti-jackknifing system mal- 17 AdBlue level too low
function (articulated buses 18 Fire detection system failure
only)
CITARO (Euro 4/5/EEV)/07.2010 GB 131
--- Page 18 ---
Driver's area controls
Calling up and interpreting the fuel consumption indicator (option)
Note:
(1) = current consumption in l/h
Note:
(2) = average consumption in l/100 km
(total)
M54_00-1256-71 M54_00-1257-71
Interpreting the display while the bus Fuel consumption indicator while the
is in motion: bus is stationary:
Note: Note:
(1) = current consumption in l/100 km The display of current consumption is
converted from l/100 km to l/h auto-
matically while the bus is stationary (v <
Note: 1.5 km/h).
M54_00-1258-71
(2) = average consumption in l/100 km To reset the average consumption
(total)
(total), press RESET pushbutton (1)
for longer than 2 seconds with a
long, thin object (e.g. a pen).
CITARO (Euro 4/5/EEV)/07.2010 GB 141
--- Page 19 ---
Driver's area controls
Guide wheel loss detection
Guide wheel loss detection
The driver is notified by the following Note:
alerts if the guide wheel bracket at As guided buses are wider than 2.55 m,
the front axle is overloaded: these vehicles are subject to the approval
conditions of the country in which they
A buzzer sounds. are operated.
A yellow warning level A malfunction
display is displayed.
Note:
If the bus is operated outside Germany,
the requirements and regulations that
M54_00-0512-01 apply in the country concerned must be
Press the upper section of pushbut- An icon lights up and the following observed.
ton (10). text appears on the screen: “Lane
The automatic steering limiter is de- guidance malfunction”.
activated.
Caution:
Have malfunctions rectified as soon as
possible at a qualified specialist workshop
which has the necessary specialist know-
ledge and tools.
CITARO (Euro 4/5/EEV)/07.2010 GB 151
--- Page 20 ---
Driver's area controls
Switching the windscreen heating (option) on/off
Press the upper section of pushbut- Switching the windscreen heating
ton (7). (option) on/off
The indicator lamp in switch (7) goes
out. Note:
The heating is switched off. Precondition: electrical system on, engine
running.