Troubleshooting
In rare instances, your navigation radio may not function the way you expect it to.
Before calling for service please read the operating instructions and go through the
following check list; it may be possible to easily remedy an apparent malfunction.
Symptoms
Possible cause / remedy
General
Navigation radio not functioning. No display.
• Check the fuse (unit and vehicle) and the connections (see installation
instructions).
Audio or map CD rejected by the device.
The CD may be dirty.
• Clean the CD with a special CD cleaning fluid.
“Please insert CD” or “Please insert correct
CD” is displayed.
• Check that a suitable CD is inserted with the label side facing upwards in the
CD player.
System switches off the sound during driving or
display shows “PHONE IN/MUTE”.
Speedometer signal connected to the wrong pin of the power supply
connector.
• See pin setting ISO chamber A in the installation instructions.
The removable part of the device feels warm.
No error. The device always generates some heat.
The display shows “Temperature too high” and
the volume is lowered.
An integrated safety circuit prevents the temperature in the device from
exceeding a certain value.
• Allow the device to cool (set lower volume) and wait until “Temperature too
high” disappears from the display.
Radio
Poor radio reception.
• Check if the antenna is completely extended and correctly connected.
• Verify that the supply power negative pole (brown lead) is correctly
connected to earth (vehicle chassis).
(The display shows the frequency instead of the
station name.)
The device is set to a station that does not transmit RDS signals or the
transmitter is too weak.
The desired station cannot be set with
automatic search.
The desired station is too weak.
• Set desired station manually (manual tuning).
• Check if the antenna is completely extended and correctly connected.
“Traffic programme” or “TMC” is switched on. The radio only tunes to
stations with traffic news or TMC information.
• If necessary, switch off the “Traffic programme” or “TMC”.
Tuner standard (tuner grid) wrongly set (EUR / USA).
• Check the option “Tuner Grid” in the “Radio” menu.
The display shows “Tune to next TA station”
and a warning tone sounds.
“Traffic programme” is switched on, the selected station, however, is too
weak or does not transmit traffic announcements (TA).
• Deactivate the “Traffic programme” function or set another station.
CD player / CD changer
Distorted sound / skips during CD play.
Player cannot read CD. CD is damaged or soiled.
CD player does not work.
In cold weather conditions, condensation may occur on the laser.
• Wait approximately 5 minutes until the condensation evaporates.
No sound during CD play.
Some CDs contain multimedia data which are not recognised by the device.
• Select the next track until music is heard.
Navigation
System reacts very slowly to entries or requires
a long time for calculation.
You are in a very densely digitised area. The system requires more time to read
large data quantities.
“Stand-by” is the only option selectable from
the main menu.
• Wait for several seconds until the navigation computer is operational
(options will be displayed in normal font).
The number of satellites displayed on info
screen i3 “System info” is 0.
• Ensure that the GPS antenna is not covered by any objects.
• Move the vehicle outdoors if you are in a garage, a car park or a tunnel.
Guidance information not audible.
• Check if the volume is set to zero.
Address cannot be stored in the address book.
Address book is full.
• Delete one or more entries that are no longer required.
Guidance is not accurate.
An inaccuracy of approx. 30 m is within the tolerance limits.
• Please contact an authorised dealer if greater inaccuracies occur repeatedly.
The displayed distance to the turning point is calculated to the centre of the
junction (especially for extended junctions and main road exits).
TROUBLESHOOTING
65
English
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