VDO M4WR User Manual
ENGLISH
Installation video
Operating video
Settings video
www.vdocyclecomputing.com/service
Preface
Congratulations
In choosing a VDO computer, you have opted for high-quality
device with first rate technology.
To optimally use the computer, we recommend that you read
this manual carefully. It contains full operating instructions
and many useful tips.
We hope you enjoy cycling with your VDO computer.
Cycle Parts GmbH
M4 WR
Pack contents
First, please ensure that the contents of this pack are
complete:
1 VDO computer
1 battery for the computer
1 universal handlebar bracket with cable and sensor
1 spoke magnet (clip magnet)
Cable ties for attaching the bracket and the sensor
1 quick-start instruction manual
2
Table of contents
M4 WR
Display .................................................................. 04
Buttons
Functions
Accessing the total values
Operation while cycling
Sleep mode ........................................................... 13
Attaching the handlebar bracket and the sensor
Inserting the computer into the bracket
Function testing
Settings ................................................................ 16
Language ....................................................................... 16
Unit ............................................................................... 18
Wheel circumference ..................................................... 20
Clock ............................................................................. 24
Start altitude .................................................................. 26
Current altitude ............................................................. 27
Total distance ................................................................ 30
Total ride time ............................................................... 32
Altitude gain .................................................................. 34
Altitude loss .................................................................. 36
................................................................. 06
.............................................................. 07
..................................... 11
......................................... 13
.... 14
................. 15
.................................................... 15
Setting the navigator
Resetting the navigator to zero
Trip section counter
Resetting the trip section counter to zero
Resetting trip data after the trip
Bike selection: bike 1 or bike 2 .............................. 42
Recalibrating the altitude before starting
Light mode
Battery status indicator
Replacing the battery in the computer ................... 47
Terms of guarantee
Troubleshooting .................................................... 49
Technical specifications ........................................ 50
............................................................ 46
............................................. 38
.............................. 39
.............................................. 40
.............. 41
............................ 41
................. 43
.......................................... 47
............................................... 48
3
Display
The VDO M4 has a large, easy-to-read display
that can be divided into four areas.
M4 WR
Area 1:
The top line of the display permanently indicates
the current altitude.
Area 2:
The next line permanently shows the current speed.
Area 3:
The middle line uses clear text to display a description
of the selected function.
Area 4:
The bottom line of the display shows the value
for the selected function.
Area 1
Area 2
Area 3
Area 4
On the right of the display, under the speed indicator,
the unit kmh or mph is displayed.
4
Display
On the left of the display, next to the speed indicator,
you will find the icons:
“ ”: the icon is ON
if the trip section counter has been started.
A more detailed description of the trip section counter can
be found on page 40.
“
” or “ ”
The VDO M4 can be used on two bikes.
The indicator icons 1 and 2 show whether your VDO M4
is currently using the settings for bike 1 or bike 2.
A description of how to switch between bike 1 and bike 2
can be found on page 42.
M4 WR
“UP/DOWN arrow”
The arrows indicate whether you are currently travelling
quicker or slower than your current average speed.
Light ON/OFF
This icon indicates whether the display backlight mode is
switched on or off.
Left/right arrows next to the description of the selected
indicator function.
In setting mode, these arrows indicate that you can scroll
by pressing the BIKE or ALTI button.
5
Buttons
M4 WR
The VDO M4 has three buttons.
ALTI
In function mode:
– Access the altitude functions
(scroll forwards through the functions)
– Select the start altitude, set the current altitude,
recalibrate the altitude before starting
(press and hold)
In setting mode:
– Scroll in the setting menu (backwards)
– Change the data to be set (decrease)
SET
In function mode:
– Scroll backwards through the functions
– Open the setting mode
(press and hold)
– Access the total values for distance
and ride time, altitude gain/loss
(press and hold)
In setting mode:
– Open the setting
– Confirm the setting once ready
– Exit setting mode and return to
function mode
BIKE
In function mode:
– Access the bike functions
(scroll forwards through the functions)
– Reset trip data to zero
(press and hold)
In setting mode:
– Scroll in the setting menu (forwards)
– Change the data to be set (increase)
– Exit setting mode and return to
function mode
6
Functions
The VDO M4 has the following functions:
Current speed
The current speed is permanently shown on the display.
With a wheel circumference of 2,155 mm, the maximum
possible speed is 199 kmh or 124 mph.
Current altitude
The current altitude is permanently shown on the display.
M4 WR
BIKE button functions
The BIKE button can be used to access the following
functions:
Current distance
The current distance (distance for the current trip) counts up
to 9,999.99 km or miles. If this maximum value is exceeded,
the counter restarts the current distance count at zero.
Current ride time
The current ride time (ride time for the current trip) counts
up to 99:59:59 HH:MM:SS.
If this value is exceeded, the ride time counter restarts at
zero.
7
BIKE button functions
Average speed
for the current trip
The average speed is specified to two decimal places.
Maximum speed
for the current trip
The maximum speed is specified to two decimal places.
M4 WR
Section time
The VDO M4 has a trip section counter.
The trip section counter is like a stopwatch.
If the trip section counter is running, the section time is
recorded, as on a stopwatch.
When the trip section counter is running,
the section distance is also recorded.
The trip section counter is started and stopped by pressing
the BIKE + SET buttons (simultaneously press and both
buttons – do NOT hold).
ATTENTION: the trip section counter stops automatically
when the speed is zero.
A detailed description of the trip section counter can be found
on page 40.
Section distance
Shows the distance travelled while the trip section counter is
activated.
8
BIKE button functions
Navigator
The navigator is a second, completely independent
trip distance counter.
The navigator is used to measure partial trip sections.
The navigator is particularly helpful when riding a route
shown in a road book.
The navigator can:
– be reset to zero as often as desired and independently
of the trip distance counter
– be preset to a specific value
– count forwards or backwards from this value
Information on how to operate the navigator can be found
on page 38.
M4 WR
Temperature
The VDO M4 has a temperature indicator.
The temperature is displayed in increments of 0.1 degrees.
Time
The current time is displayed in 24 H or 12 H mode.
Information on how to set the time can be found on page 24.
9
ALTI button functions
Press the ALTI button to access the following altitude
information:
Current gradient uphill/downhill
Displays the gradient uphill/downhill as a percentage.
Altitude gain
Displays the altitude gain for the current trip.
M4 WR
Maximum altitude
Displays the maximum altitude reached on the current trip.
The value is updated if a new, higher altitude is reached.
Average gradient uphill
Shows you the average gradient uphill for the current trip.
Maximum gradient uphill
Shows you the maximum gradient uphill you have recorded
so far on the current trip.
10
ALTI button functions
Altitude loss
Displays the altitude loss for the current trip.
Average gradient downhill
Shows you the average gradient downhill for the current trip.
M4 WR
Maximum gradient downhill
Shows you the maximum gradient downhill you have
recorded so far on the current trip.
The value is updated if you ride down a steeper section
at a later point.
Accessing the total values
The total values for the distance travelled, the ride time and
the altitude data are accessed separately from the data for
the CURRENT trip.
To access the totals, press and hold the SET button until
the menu opens.
Press the SET button to open the total values screen.
Press the BIKE or ALTI button to scroll in the total values
(Totals).
The total distance 1 (sum of all individual trips with bike 1)
is displayed first.
11
Accessing the total values
Total distance 1
(Sum of all trips on bike 1)
The total distance counts up to 99,999 km or miles.
If this value is exceeded, the total distance counter restarts at
zero.
If the unit is switched from miles to km and the conversion
result is greater than 100,000 km, the total distance counter
is reset to zero.
Press the BIKE button to scroll to
total ride time.
(Sum of all trips)
The total ride time counts up to 9999:59 HHHH:MM.
If this value is exceeded, the total ride time counter restarts
at zero.
M4 WR
Press the BIKE button to scroll on to
year altitude gain for bike 1
Press the BIKE button to scroll on to
year altitude loss for bike 1
If you have also used bike 2, when continuing scrolling
by pressing the BIKE button, the values for bike 2 are
also displayed here.
The total values are also found here (sum of the values
for bike 1 plus bike 2)
Press (and hold) the SET button to return from the total
values information to the normal function mode.
12
Operation while cycling
M4 WR
While cycling, the display functions can be accessed by
pressing the BIKE button and the ALTI button
(scroll forwards through the functions).
Pressing the BIKE or ALTI button shows the next function
on the display.
By pressing the SET button you can also scroll backwards
through the functions. This enables you to quickly display the
desired function.
Sleep mode
SET
BIKEALTI
If you take a break and the M4 is in the bracket,
the computer switches to sleep mode after five minutes.
The model name VDO M4 and the time appear on the display.
If you set off again after a break, the VDO M4 has an
auto-start function.
The VDO M4 instantly switches back to the function mode and
the current speed and distance are once again displayed.
13
90°
Attaching the bracket and the sensor
M4 WR
Start by attaching the sensor and the magnet.
STEP 1
Place the rubber shim under the sensor. Attach the sensor to
the fork side that corresponds to the side on which you later
want to attach the computer to the handlebars (right or left)
using the cable ties supplied (loosely at first, do not pull tight
just yet).
ATTENTION: the sensor mark on the sensor should point to
the spokes. Depending on the space available, the sensor can
be fitted to the front, inside or back of the fork.
STEP 2
Attach the spoke magnet to an outside spoke. The rod-shaped
magnet core points toward the sensor with the VDO logo.
Align the magnet with the sensor marking on the sensor
at a distance of approx. 1- 5 mm.
STEP 3
Align the sensor and the magnet in their final positions and
fasten them in place: pull the cable ties tight and push the
magnet in firmly.
STEP 4
Move the cable along the fork until it reaches the fork bridge.
From there, wind the cable further along the brake line until it
reaches the handlebars.
1
2
SENSOR
3
mm
4
STEP 5
Decide whether you want to use handlebar or stem attachment and rotate the base of the handlebar bracket by 90°
accordingly. To do so, undo the screws on the bracket,
remove the foot and rotate it 90° then insert and tighten
the screws again.
ATTENTION: do not overtighten the screws.
STEP 6
Guide the cable ties through the slot in the handlebar bracket,
place around the handlebars or the stem and pull (do not pull
tight just yet).
STEP 7
For handlebar attachment: align the computer angle
to achieve optimum readability.
Now pull the cable ties tight.
Use clippers to snip off protruding cable ends.
A helpful attachment video can be found on our website.
www.vdocyclecomputing.com/service
5 7
14
Inserting the computer into the bracket
The VDO twist-click system securely connects the
computer to the handlebar bracket.
M4 WR
How to insert the computer:
STEP 1
Place the computer into the bracket in a 10 o’clock position.
STEP 2
Rotate the computer to the right into the 12 o’clock position
and click it into the bracket system. A noticeable resistance
must be overcome to move it into place.
STEP 3
To remove the computer, rotate it to the left
(without pushing or pulling).
Memory aid: Rigid to the Right, Loose to the Left
LOCK
UNLOCK
. LOCK . CLICK
. UNLOCK
Function testing
Once the sensor has been attached, check that it functions
correctly.
How to test the transmitter:
– Insert the computer into the bracket.
– Lift and spin the front wheel.
– A speed should now be displayed on the computer.
If no speed is displayed, there can be several reasons for this.
The possible reasons are described in the “Trouble-
shooting” section.
15
Settings – language
The following display languages can be selected for
the VDO M4:
– German
– English
– French
– Italian
– Spanish
– Dutch
– Polish
How to select a language:
Press and hold the SET button until the settings menu
opens.
The Totals (total values) first appear on the display.
M4 WR
Press the BIKE button to scroll to Settings.
Press the SET button to open the settings.
“Language” appears on the display.
Press SET to open the language settings.
“English” flashes.
16
Loading...