Service and maintenance
Intercooler 111
Intercooler
The engine is provided with an air-to-air type intercooler. The
intercooler lowers the temperature of the induction air by
approximately 100 °C (212 °F). The induction air will then have a
higher density, as a result of which more fuel can be injected and
combusted. This results in higher engine output, but the colder air
causes less stresses on valves and pistons.
Turbocharger
IMPORTANT! Run the engine at low idle for at least half a
minute after start and a few minutes before it is stopped. This
is to ensure lubrication of the turbocharger.
The turbocharger is lubricated and cooled through the engine
lubrication system. A vital condition for the function of the
turbocharger is that engine oil and filter are changed and replaced
at regular intervals. The maintenance of the air cleaner and the
tightness of the exhaust system and the lubrication lines are also
important for the function.
If noise or vibrations are confirmed in the turbocharger, change it
immediately.
Only a workshop authorised by Volvo CE may carry out work
on the turbocharger.
Turbocharger, function
Exhaust in
B Exhaust out
C Air in
D Air out
Air Lubricating oil
Exhaust gases
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