124 Multi-Purpose Display and Instruments
The voltmeter indicates the vehicle electrical
system voltage.
Normal range: 12 to 16 V.
The voltage may drop considerably when the
vehicle is being started.
If the indicator is constantly below 12 V when
the engine is running:
f Have the battery charging system checked.
f Consult a qualified specialist workshop. We
recommend that you use a Porsche partner for
this work since these are staffed with trained
personnel and have the necessary parts and
tools.
Battery/generator
A warning message will appear on the multi-
purpose display of the instrument panel if the
vehicle electrical system voltage drops signifi-
cantly.
f Stop at a safe place and switch the engine off.
f For information on warning messages on the
multi-purpose display:
Please observe the chapter “OVERVIEW OF
WARNING MESSAGES” on Page 151.
Possible causes
– Defect in the battery charging system
– Torn drive belt
Warning!
Risk of accident and risk of engine damage.
A torn drive belt means there is no power
assistance to the steering (more effort is
required to steer) and engine cooling fails.
f Do not continue driving.
f Have the fault remedied.
f Consult a qualified specialist workshop. We
recommend that you use a Porsche partner for
this work since these are staffed with trained
personnel and have the necessary parts and
tools.
Danger of steering assistance failing during
a long journey in water if the drive belt slips.
f If the steering assistance fails, more effort will
be required to steer.
Voltmeter
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