Fault Finding - BMW 5 Serie Manual De Instrucciones

The longer you press the buttons, the faster
the numbers of the clock run.
Query time:
Press button 'Time of day'
extinguished after 10 seconds.
Programming start of heating:
Three different switching-on times can be
programmed.
Press button once and program the first
Set
switching-on time according to the following
scheme.
The display field shows "-:--" or a time
Activate Forwards or Backwards
until the desired switching-on time appears in the
display field. The switching-on time entered is
extinguished again after approx. 8 seconds.
If the 'Forwards' or the 'Backwards'
are not pressed for a period longer than 10
seconds, the displayed time is selected and
stored.
Activate the button once again to program
Set
further switching-on times.
The start of heating is programmed if the
program number is displayed and the orange
display field is permanently illuminated. The
brightness of the display-field illumination is not
variable.
Delete pre-set time:
Touch the button briefly.
Set
Switching-on time in the display field is
extinguished.
Select programmed pre-set time:
Press the button in each case within 10
Set
seconds until the program number with the
desired pre-set time is displayed.

18. Fault finding

If a malfunction occurs the blade terminal fuses
and the plug-in connectors should be checked
for faultless state and for their seating.
Parking heater switches itself off automatically
(= malfunction switch-off)
Possible cause
No combustion after start and start repeat.
Flame is extinguished during operation.
Corrective action
Switch off heater and switch it on again.
28
briefly. Display is
button
buttons
Parking heater does not switch on
Possible cause
Parking heater is without current
Corrective action
Check parking heater power supply as well as
ground connections (see circuit diagram).
Parking heater works for a short time and
then switches off again
Possible cause
Fuel metering pump is not working
Corrective action
Check power supply of fuel metering pump (see
circuit diagram), if necessary replace fuel metering
pump.
Parking heater does not ignite
Possible cause
Malfunction of heater plug or air in the
fuel supply line
Corrective action
Check power supply of heater plug, if necessary
replace heater plug.
Bleed fuel flexible pipe.
Parking heater switches off during the heating
operation (fault shut-down)
Possible cause
Parking heater is overheated owing to
lack of coolant
Corrective action
Top up coolant and evacuate air in accordance
with repair instructions. Remedy any possible
leaks.
Blower is not working
Possible cause
Blower control system or blower faulty
Corrective action
Check connection points for blower control system
(see circuit diagram), or make a functional check of
blower.