Volvo S90 TWIN ENGINE, Owner'S Manual

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MAINTENANCE AND SERVICE
586
WARNING
Remember that the radiator fan (located at
the front of the engine compartment, behind
the radiator) may start or continue to operate
automatically for up to approx. 6 minutes after
the engine has been switched off.
Always have the engine cleaned by a work-
shop - an authorised Volvo workshop is rec-
ommended. There is a risk of fire if the engine
is hot.
WARNING
The ignition system works at a very high and
hazardous voltage. The car's electrical system
must always be in ignition position 0 when
work is being performed in the engine com-
partment.
Do not touch the spark plugs or ignition coil
when the car's electrical system is in ignition
position II or when the engine is hot.
Related information
•
Opening and closing the bonnet (p. 583)
•
Filling washer fluid (p. 625)
•
Topping up coolant (p. 588)
•
Fuses in engine compartment (p. 599)
•
Checking and filling with engine oil
(p. 587)
•
Ignition positions (p. 426)
Engine oil
An approved engine oil must be used in order
that the recommended service intervals and war-
ranty can be applied.
Volvo recommends:
If the engine oil cannot be checked on a regular
basis and the level falls too low, there is a risk
that this will cause serious damage to the engine.
IMPORTANT
In order to fulfil the requirements for the
engine's service intervals all engines are filled
with a specially adapted synthetic engine oil
at the factory. The choice of oil has been
made very carefully with regard to service life,
starting characteristics, fuel consumption and
environmental impact.
An approved engine oil must be used in order
that the recommended service intervals can
be applied. Only use a prescribed grade of oil
for both filling and oil change, otherwise there
is a risk of the service life, starting characte-
ristics, fuel consumption and environmental
impact of the car being affected.
If engine oil of the prescribed grade and vis-
cosity is not used, engine related components
may become damaged. Volvo Car Corporation
disclaims any liability for any such damage.
Volvo recommends that oil changes are car-
ried out at an authorised Volvo workshop.
Volvo uses different systems to warn about the
oil level if it is too low/high, or in the event of low
oil pressure. Certain engine variants have an oil
pressure sensor, and then the driver display's