2005 VOLVO XC90
Information booklet provides a comprehensive periodic maintenance schedule up to 150,000 miles
(240,000 km) of vehicle maintenance. The schedule includes components that affect vehicle emissions.
This page describes some of the emission-related components.
Engine air filter
The engine air filter cleans particles from air entering the engine. Replace the engine air filter cartridge
with a new one every 37,500 miles (60,000 km) under normal driving conditions. Replace the cartridge
more often when the vehicle is driven under dirty and dusty conditions. The cartridge cannot be cleaned,
and should always be replaced with a new one.
Fuel filter
The fuel filter should be replaced at 120,000 miles (193,000 km). The filter is replaced as a complete
unit. Replace more frequently if contaminated fuel is introduced into the tank, or if there is reason to
suspect that this has occurred.
Fuel system, including filler cap, tank, lines, and connections
The ability of the fuel system to contain hydrocarbons depends upon a leak-free system. Inspect fuel
lines every 30,000 miles (48,000 km). Check for proper sealing of the fuel filler cap, which contains "O"
ring seals.
NOTE: If the fuel filler cap is not closed tightly or if the engine is running when the vehicle is refueled,
the Check Engine light (Malfunction Indicator) may indicate a fault. However, your vehicle's
performance will not be affected. Use only Volvo original or approved fuel filler caps.
Timing belt
For proper functioning of the engine and emission control systems, the timing belt and belt pretensioner
must be replaced every 120,000 miles (193,000 km) or 10 years, whichever occurs first. Engine damage
will occur if the belt fails.
PCV system
(on turbocharged models)
The nipple in the intake manifold and the filter at the end of the PCV hose in the air cleaner should be
inspected and cleaned at 120,000 miles (193,000 km), and again at 45,000 miles (72,000 km).
Spark plugs
The spark plugs should be replaced every 60,000 miles (96,000 km).
Under normal driving conditions, spark plugs require no maintenance between replacement intervals.
pg. 138 Maintenance
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