Porsche 911 TURBO - 1975 WORSHOP, Manual

Page: 74 / 252

74
Controls, Safety, Instruments
With the engine warmed up and running at a speed
of 5000 rpm, the engine oil pressure should be
approx. 4.5 bar or higher.
If oil pressure drops abruptly and a message
is displayed on the on-board computer when
the engine is running or while driving:
f Stop immediately in a suitable place.
f
Switch off the engine.
f Check whether there is an obvious oil leak on
or under the car.
f If no oil leak can be detected: With the engine
idling, measure the oil level with the on-board
computer.
f
Please observe the chapter “ON-BOARD
COMPUTER (BC)” on page 76.
Please observe the chapter “ENGINE OIL
LEVEL” on page 179.
f Add engine oil if necessary.
Caution!
Risk of engine damage.
f Do not continue driving if there is an obvious oil
leak.
f
Do not continue driving if the warning message
appears even when the oil level is correct.
f Have the fault remedied.
Consult a qualified specialist workshop. We
recommend a Porsche partner for this work as
they have trained workshop personnel and the
necessary parts and tools.
If the battery voltage drops abruptly, a warning
message will be shown by the on-board computer.
If the warning message is shown when the
engine is running or while driving:
f Stop at a safe place and switch the engine off.
Possible causes:
– Defect in the battery charging system
– Broken drive belt
Warning!
Risk of accident and risk of engine damage.
A broken 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 a Porsche partner for this work as
they have trained workshop personnel and the
necessary parts and tools.
Engine Oil Pressure
Battery/Generator