Stop MERCEDES-BENZ B-Class 2017 W246 Owner's Guide

i
When you switch off the engine, the last
speed stored is cleared. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the driver
having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply.
R the HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
R the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
R the battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle
against rolling away.
! If the HOLD function is activated, the vehicle
brakes automatically in certain situations.
To prevent damage to the vehicle, deactivate
the HOLD function in the following or other
similar situations:
R when towing the vehicle
R in the car wash
Deactivating the HOLD function (Y page 138).Activation conditions You can activate the HOLD function if:
R the vehicle is stationary
R the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
R the driver's door is closed or your seat belt is
fastened
R the electric parking brake is released
R the transmission position D,Ror Nis engaged
Activating the HOLD function X
Make sure that the activation conditions are
met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until 0043appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automatically
if:
R you accelerate. On vehicles with automatic
transmission: only when the transmission is in
position Dor R.
R the transmission is in position P.
R you depress the brake pedal again with a cer-
tain amount of pressure until 0043disappears
from the multifunction display.
R you secure the vehicle using the electric park-
ing brake.
i After a time, the electric parking brake
secures the vehicle and relieves the service
brake. 138
Driving systemsDriving and parking

The electric parking brake secures the vehicle
automatically if the HOLD function is activated
and:
R the driver's seat belt is not fastened and the
driver's door is open.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function.
R a system malfunction occurs.
R the power supply is insufficient.
The Brake Immediately Brake Immediately message may also
appear in the multifunction display.
X Immediately depress the brake firmly until the
warning message in the multifunction display goes out.
The HOLD function is deactivated. The horn
sounds at regular intervals if you have switched
off the engine, released the seat belt and
opened the driver's door with the HOLD function activated. The sounding of the horn alerts you to
the fact that the HOLD function is still activated.
If you attempt to lock the vehicle, the tone
becomes louder. The vehicle cannot be locked
until you have deactivated the HOLD function.
i After switching off the engine, it can only be
started again once you have deactivated the
HOLD function. Parking Assist PARKTRONIC
Important safety notes Parking Assist PARKTRONIC is an electronic
parking aid with ultrasound. It monitors the area
around your vehicle using six sensors in the
front bumper and six sensors in the rear
bumper. Parking Assist PARKTRONIC visually
and audibly indicates the distance between your
vehicle and an object.
Parking Assist PARKTRONIC is only an aid. It is
not a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking and
exiting a parking space. When maneuvering,
parking or pulling out of a parking space, make
sure that there are no persons, animals or
objects in the area in which you are maneuver-
ing.
! When parking, pay particular attention to
objects above or below the sensors, such as
flower pots or trailer drawbars. Parking Assist PARKTRONIC does not detect such objects
when they are in the immediate vicinity of the
vehicle. You could damage the vehicle or the
objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic car
wash, the compressed-air brakes of a truck or
a pneumatic drill could cause Parking Assist
PARKTRONIC to malfunction.
Parking Assist PARKTRONIC may not function
correctly on uneven terrain.
Parking Assist PARKTRONIC is activated auto-
matically when you: R switch on the ignition
R shift the transmission to position D,Ror N
R shift the transmission to position D,Ror N
R release the electric parking brake
Parking Assist PARKTRONIC is deactivated at
speeds above 11 mph (18 km/h) . It is reactiva-
ted at lower speeds.
Range of the sensors General notes
Parking Assist PARKTRONIC does not take into
account obstacles located:
R below the detection range, e.g. people, ani-
mals or objects.
R above the detection range, e.g. overhanging
loads, tail sections or loading ramps of goods
vehicles. 0043
Sensors in the front bumper, left-hand side
(example)
The sensors must be free from dirt, ice or slush. They can otherwise not function correctly. Clean
the sensors regularly, taking care not to scratch
or damage them (Y page 237). Driving systems
139Driving and parking Z

Parking Pilot
General notes Parking Pilot is an electronic parking aid with
ultrasound. It measures the road on both sides
of the vehicle. A parking symbol indicates a suit-
able parking space. Active steering intervention
can assist you during maneuvering and parking. Parking Assist PARKTRONIC is also available
(Y page 139).
Important safety notes Parking Pilot is only an aid. It is not a replace-
ment for your attention to your immediate sur-
roundings. You are always responsible for safe
maneuvering, parking and exiting a parking
space. Make sure that no persons, animals or
objects are in the maneuvering range.
When Parking Assist PARKTRONIC is deactiva-
ted, Parking Pilot is also unavailable. G
WARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Parking Pilot parking procedure.
! If unavoidable, you should drive over obsta-
cles such as curbs slowly and not at a sharp
angle. Otherwise, you may damage the
wheels or tires.
Parking Pilot may also display spaces not suita- ble for parking, e.g.:
R where parking or stopping is prohibited
R in front of driveways or entrances and exits
R on unsuitable surfaces
Parking tips:
R On narrow roads, drive as close to the parking
space as possible.
R Parking spaces that are littered or overgrown
might be identified or measured incorrectly.
R Parking spaces that are partially occupied by
trailer drawbars might not be identified as
such or be measured incorrectly. R
Snowfall or heavy rain may lead to a parking
space being measured inaccurately.
R Pay attention to the warning messages of
Parking Pilot PARKTRONIC during the parking
procedure (Y page 140).
R You can intervene to correct the steering pro-
cedure at any time. Parking Pilot will then be
canceled.
R When transporting a load that protrudes from
your vehicle, you must not use Parking Pilot.
R Never use Parking Pilot when snow chains are
mounted.
R Make sure that the tire pressures are always
correct. This has a direct influence on the
parking characteristics of the vehicle.
Use Parking Pilot for parking spaces that are:
R parallel to the direction of travel
R on straight roads, not bends
R on the same level as the road, e.g. not on the
pavement
Detecting parking spaces Objects located above the detection range of
Parking Pilot will not be detected when the park-
ing space is measured. These are not taken into
account when the parking procedure is calcula-
ted, e.g. overhanging loads, truck overhangs or
loading ramps. G
WARNING
If there are objects above the detection range:
R Parking Pilot may steer in too early
R the vehicle may not stop in front of these
objects
You may cause a collision as a result. There is a risk of an accident.
If objects are located above the detection
range, stop and deactivate Parking Pilot.
For further information on the detection range
(Y page 139).
Parking Pilot does not assist you parking in
spaces parallel to the direction of travel if:
R the parking space is on a curb
R the parking space is apparently blocked, for
example by foliage or grass paving blocks 142
Driving systemsDriving and parking

R
the range of movement is too small
R the parking space is bordered by an obstacle
which is not clearly defined such as a tree or a
trailer 0043
Detected parking space on the left
0044 Parking symbol
0087 Detected parking space on the right
Parking Pilot is activated automatically when
driving forwards. The system is operational at
speeds of up to approximately 22 mph
(35 km/h). While in operation, the system inde- pendently locates and measures parking spaces on both sides of the vehicle.
Parking Pilot will only detect parking spaces:
R parallel to the direction of travel
R that are at least 59 in (1.5 m) wide
R that are at least 51 in (1.3 m) longer than your
vehicle
When driving at speeds below 19 mph
(30 km/h), you will see parking symbol 0044as a
status indicator in the instrument cluster. When
a parking space has been detected, an arrow
towards the right or the left also appears. Park- ing Pilot only displays parking spaces on the
front-passenger side as standard. Parking
spaces on the driver's side are displayed as
soon as the turn signal on the driver's side is
activated. When parking on the driver's side,
this must remain activated until you confirm the
use of Parking Pilot by pressing the 0076button
on the multifunction steering wheel.
A parking space is displayed while you are driv- ing past it, and until you are approximately 50 ft
(15 m) away from it.
Pa rking G
WARNING
Parking Pilot merely aids you by intervening
actively in the steering. If you do not apply the brakes yourself, there is the risk of an acci-
dent. Always apply the brakes yourself while
maneuvering and parking.
X Stop the vehicle when the parking space sym-
bol shows the desired parking space in the
instrument cluster.
X Shift the transmission to position R.
The Start Parking Pilot?
Start Parking Pilot? Yes: OK Yes: OKNo:
No:
0038 message appears in the multifunction
display.
X To cancel the procedure:press the 0038
button on the multifunction steering wheel or pull away.
or
X To park using Parking Pilot: press the0076
button on the multifunction steering wheel.
The Parking Pilot Active Accelerate Parking Pilot Active Accelerate
and Brake
and Brake Observe Surroundings
Observe Surroundings mes-
sage appears in the multifunction display.
X Let go of the multifunction steering wheel.
X Back up the vehicle, being ready to brake at all
times. When backing up, drive at a speed
below approximately 6 mph (10 km/h). Oth-
erwise Parking Pilot is canceled.
Maneuvering may be required in tight parking
spaces.
X Stop when Parking Assist PARKTRONIC
sounds the continuous warning tone, if not
before.
Maneuvering may be required in tight parking
spaces.
The Parking Pilot Active Select D
Parking Pilot Active Select D
Observe Surroundings Observe Surroundings message appears in
the multifunction display.
X Shift the transmission to position Dwhile the
vehicle is stationary.
Parking Pilot immediately steers in the other
direction.
The Parking Pilot Active Accelerate
Parking Pilot Active Accelerate
and Brake and Brake Observe Surroundings
Observe Surroundings mes-
sage appears in the multifunction display.
i You will achieve the best results by waiting
for the steering procedure to complete before
pulling away.
X Drive forwards and be ready to brake at all
times.
Maneuvering may be required in tight parking
spaces.
X Stop when Parking Assist PARKTRONIC
sounds the continuous warning tone, if not
before. Driving systems
143Driving and parking Z

The
Parking Pilot Active Select R
Parking Pilot Active Select R
Observe Surroundings
Observe Surroundings message appears in
the multifunction display.
As soon as the parking procedure is complete,
the Parking Parking Pilot
PilotEnded
Endedmessage appears in
the multifunction display and a warning tone
sounds. The vehicle is now parked.
Parking Pilot no longer supports you with steer-
ing interventions and brake applications. When
Parking Pilot is ended, you must steer and brake again yourself. Parking Assist PARKTRONIC is
still available.
Parking tips:
R The way your vehicle is positioned in the park-
ing space after parking is dependent on vari-
ous factors. These include the position and
shape of the vehicles parked in front and
behind it and the conditions of the location. It
may be the case that Parking Pilot guides you
too far into a parking space, or not far enough
into it. In some cases, it may also lead you
across or onto the curb. If necessary, you
should abort the parking procedure with Park- ing Pilot.
R You can also select preselect transmission
position D. The vehicle redirects and does not
drive as far into the parking space. Should the transmission change take place too early, the
parking procedure will be canceled. A sensi-
ble parking position can no longer be ach-
ieved from this position.
Exiting a parking space In order for Parking Pilot to support you when
exiting the parking space:
R
you need to have parked using Parking Pilot.
R the border of the parking space must be high
enough at the front and the rear. A curb stone
is too small, for example.
R the border of the parking space must not be
too wide, as the position of the vehicle must
not exceed an angle of 45° to the starting
position as it is maneuvered into the parking
space.
R a maneuvering distance of at least 3.3 ft
(1.0 m) must be available.
Parking Pilot can assist you with exiting a park-
ing space only if you have parked the vehicle
parallel to the direction of travel using Parking
Pilot. X
Start the engine.
X Release the electric parking brake.
X Switch on the turn signal in the direction you
will drive out of the parking space.
X Shift the transmission to position Dor R.
The Start Parking Pilot?
Start Parking Pilot? Yes: OK Yes: OKNo:
No:
0038 message appears in the multifunction
display.
X To cancel the procedure: press the0038
button on the multifunction steering wheel or
pull away.
or X To exit a parking space using Parking
Pilot:
press the 0076button on the multi-
function steering wheel.
The Parking Pilot Active Accelerate
Parking Pilot Active Accelerate
and Brake and Brake Observe Surroundings
Observe Surroundings mes-
sage appears in the multifunction display.
X Let go of the multifunction steering wheel.
X Pull away, being ready to brake at all times. Do
not exceed a maximum speed of approx-
imately 6 mph (10 km/h) when exiting a park-
ing space. Otherwise, Parking Pilot is can-
celed immediately.
X Stop when Parking Assist PARKTRONIC
sounds the continuous warning tone, if not
before.
X Depending on the message or as required,
shift the transmission to position Dor R.
Parking Pilot immediately steers in the other
direction. The Parking Pilot Active
Parking Pilot Active
Accelerate and Brake Accelerate and Brake Observe Sur‐
Observe Sur‐
roundings
roundings message appears in the multi-
function display.
i You will achieve the best results by waiting
for the steering procedure to complete before
pulling away.
If you back up after activation, the steering
wheel is moved to the straight-ahead posi-
tion.
X Drive forwards and reverse as prompted by
the Parking Assist PARKTRONIC warning dis-
plays, several times if necessary.
Once you have exited the parking space com-
pletely, the steering wheel is moved to the
straight-ahead position. You hear a tone and the
Parking Parking Pilot
PilotFinished
Finished message appears in
the multifunction display. You will then have to
steer and merge into traffic on your own. Park-
ing Assist PARKTRONIC is still available. You can take over the steering before the vehicle has
exited the parking space completely. This is 144
Driving systemsDriving and parking

useful, for example when you recognize that it is
already possible to pull out of the parking space.
Canceling Parking Pilot X
Stop the movement of the multifunction
steering wheel or steer yourself.
Parking Pilot is canceled immediately. The
Parking
Parking Pilot PilotCanceled
Canceled message appears
in the multifunction display.
or
X Press the PARKTRONIC button (Y page 141).
Parking Assist PARKTRONIC is switched off
and Parking Pilot is immediately canceled.
The Parking Pilot Canceled
Parking Pilot Canceled message
appears in the multifunction display.
Parking Pilot is canceled automatically when: R the electric parking brake is engaged
R transmission position Pis selected
R parking using Parking Pilot is no longer pos-
sible
R you are driving faster than 6 mph (10 km/h)
R a wheel spins, ESP ®
intervenes or fails. In
such cases the 00E5warning lamp lights up in
the instrument cluster
A warning tone sounds. The parking symbol dis-
appears and the multifunction display shows the
Parking Pilot Canceled Parking Pilot Canceled message.
When Parking Pilot is canceled, you must steer
and brake again yourself.
If a system malfunction occurs, the vehicle is
braked to a standstill. To drive on, depress the
accelerator again. Rear view camera
General notes Rear view camera
0043is an optical parking and
maneuvering aid. It shows the area behind your vehicle with guide lines in the multimedia sys-
tem display.
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
i The text shown in the multimedia system
display depends on the language setting. The following are examples of rear view camera
messages in the multimedia system display.
Observe the notes on cleaning (Y page 238).
Important safety notes The rear view camera is only an aid. It is not a
replacement for your attention to your immedi-
ate surroundings. You are always responsible
for safe maneuvering and parking. When maneu-
vering or parking, make sure that there are no
persons, animals or objects in the area in which you are maneuvering.
Under the following circumstances, the rear
view camera will not function, or will function in
a limited manner:
R if the tailgate is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light
R if the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in win-
ter
R if the camera lens is dirty or obstructed
Observe the notes on cleaning
(Y page 238)
R if the rear of your vehicle is damaged. In this
case, have the camera position and setting
checked at a qualified specialist workshop
The field of vision and other functions of the rear
view camera may be restricted due to additional
accessories on the rear of the vehicle (e.g.
license plate holder, bicycle rack). Driving systems
145Driving and parking Z

0043
Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
X Stop the vehicle when it is almost exactly in
front of the parking space.
The white lane should be as close to parallel
with the parking space marking as possible. 0043
White guide line at current steering wheel
angle
0044 Parking space marking
X Turn the steering wheel to the center position
while the vehicle is stationary. 0043
Red guide line at a distance of approximately
12 in (0.30 m) from the rear of the vehicle
0044 White guide line without turning the steering
wheel
0087 End of parking space
X Back up carefully until you have reached the
final position.
Red guide line 0043is then at end of parking
space 0087. The vehicle is almost parallel in the
parking space.
Wide-angle function 0043
Symbol for the wide-angle view function
0044 Own vehicle
0087 Parking Assist PARKTRONIC warning dis-
plays
Select this view when you are driving out of an
exit and the view of crossing traffic is restricted, for example. ATTENTION ASSIST
General notes ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways. It is
active in the 37 mph (60 km/h) to 125 mph 148
Driving systemsDriving and parking

(200 km/h) range. If ATTENTION ASSIST
detects typical indicators of fatigue or increas-
ing lapses in concentration on the part of the
driver, it suggests taking a break.
Important safety notes ATTENTION ASSIST is only an aid to the driver. It
might not always recognize fatigue or increasing inattentiveness in time or fail to recognize them
at all. The system is not a substitute for a well-
rested and attentive driver.
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or not
occur at all:
R if the length of the journey is less than approx-
imately 30 minutes
R if the road condition is poor, e.g. if the surface
is uneven or if there are potholes
R if there is a strong side wind
R if you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration
R if you are predominantly driving slower than
37 mph (60 km/h) or faster than 125 mph
(200 km/ h)
R if the time has been set incorrectly
R in active driving situations, such as when you
change lanes or change your speed
ATTENTION ASSIST is reset when you continue
your journey and starts assessing your tiredness
again if:
R you switch off the engine
R you take off your seat belt and open the driv-
er's door, e.g. for a change of drivers or to
take a break
Displaying the attention level You can have current status information dis-
played in the assistance menu (Y
page 162) of
the on-board computer.
X Select the Assistance display for Attention
Assist using the on-board computer
(Y page 162).
The following information is displayed: R Length of the journey since the last break.
R The Attention Attention Level
Leveldetermined by ATTEN-
TION ASSIST, displayed in a bar display in five levels from high to low
R If ATTENTION ASSIST is unable to calculate
the attention level and cannot output a warn-
ing, the System Passive System Passive message appears.
The bar display then changes the display,
such as when you are driving at a speed below 37 mph (60 km/h) or above 124 mph
(200 km/h).
Activating ATTENTION ASSIST X
Activate ATTENTION ASSIST using the on-
board computer (Y page 163).
The system determines the attention level of
the driver depending on the setting selected:
Standard Standard selected: the sensitivity with which
the system determines the attention level is set to normal.
Sensitive
Sensitive selected: the sensitivity is set
higher. The attention level detected by Attention
Assist is adapted accordingly and the driver is
warned earlier.
When ATTENTION ASSIST is deactivated, the
00D7 symbol appears in the multifunction dis-
play in the assistance graphic display.
When ATTENTION ASSIST has been deactivated,
it is automatically reactivated after the engine
has been stopped. The sensitivity selected cor-
responds to the last selection activated (stand-
ard/sensitive).
Warning in the multifunction display If fatigue or increasing lapses in concentration
are detected, a warning appears in the multi-
function display:
ATTENTION ASSIST ATTENTION ASSIST Take a
Take a
Break!
Break!.
In addition to the message shown in the multi-
function display, you will then hear a warning
tone. Driving systems
149Driving and parking Z

cle while driving, you will be distracted from
traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
When telephoning, you must observe the legal
requirements for the country in which you are
currently driving. X Switch on the mobile phone (see the manu-
facturer’s operating instructions).
X Switch on the multimedia system (see sepa-
rate operating instructions).
X Establish a Bluetooth ®
connection to the mul-
timedia system; see the separate operating
instructions.
X Press the 0059or0065 button on the steering
wheel to select the Tel
Tel menu.
You will see one of the following display mes-
sages in the multifunction display:
R Telephone READY Telephone READY or the name of the net-
work provider: the mobile phone has found a network and is ready to receive.
R Telephone
Telephone No
Noservice
service : there is no network
available or the mobile phone is searching for
a network.
Accepting a call If someone calls you when you are in the
Tel
Tel
menu, a display message appears in the multi-
function display.
You can accept a call at any time, even if you are
not in the Tel Telmenu.
X Press the 0061button on the steering wheel
to accept an incoming call.
Rejecting or ending a call You can end or reject a call anytime, even if you
are not in the Tel
Telmenu.
X Press the 0076button on the steering wheel
to reject or end a call. Selecting an entry in the phone book X
Press the 0059or0065 button on the steering
wheel to select the Tel
Telmenu.
X Press the 0063,0064or0076 button to
switch to the phone book.
X Authorize access to the phone book on the
phone.
X Press the 0063or0064 button to select the
desired name.
or
X To begin rapid scrolling: press and hold the
0063 or0064 button for longer than one sec-
ond.
Rapid scrolling stops when you release the
button or reach the end of the list.
X If only one telephone number is stored for
a name: press the 0061or0076 button to
start dialing.
or
X If there is more than one number for a
particular name:
press the0061or0076
button to display the numbers.
X Press the 0063or0064 button to select the
number you want to dial.
X Press the 0061or0076 button to start dialing.
or
X If you do not want to make a call: press the
0076 or0038 button.
Redialing The on-board computer saves the last names or
numbers dialed in the redial memory.
X Press the 0059or0065 button on the steering
wheel to select the Tel
Tel menu.
X Press the 0061button to switch to the redial
memory.
X Press the 0063or0064 button to select the
desired name or number.
X Press the 0061or0076 button to start dialing.
or
X If you do not want to make the call: press
the 0076 or0038 button. Menus and submenus
161On-board computer and displays Z

Display messages
Introduction
General notes Display messages appear in the multifunction display.
Display messages with graphic displays may be shown in simplified form in the Operator's Manual
and may therefore differ from the multifunction display.
Please respond in accordance with the display messages and follow the additional notes in this
Operator's Manual.
Certain display messages are accompanied by an audible warning tone or a continuous tone.
When the ignition is switched off, all display messages are deleted, apart from some high-priority
display messages. Once the causes of the high-priority display messages have been rectified, the
corresponding display messages are also deleted.
When you stop and park the vehicle, please observe the notes on:
R HOLD function (Y page 138)
R Parking (Y page 128)
Hiding display messages X
Press the 0076or0038 button on the steering wheel.
The multifunction display hides the display message.
The multifunction display shows high-priority display messages in red. Some high-priority display
messages cannot be hidden.
The multifunction display shows these messages continuously until the causes for the messages
have been remedied.
Message memory The on-board computer saves certain display messages in the
message memory. You can call up
the display messages:
X Press the 0059or0065 button on the steering wheel to select the Serv.
Serv. menu.
If there are display messages, the multifunction display shows 2 Messages
2 Messages, for example.
X Press the 0063or0064 button to select the entry, e.g. 2 Messages
2 Messages.
X Press 0076to confirm.
X Press the 0063or0064 button to scroll through the display messages. Display
messages
167On-board computer and displays Z