2005 Volvo S80
pg. 133 Emissions maintenance
Periodic maintenance helps minimize emissions
Periodic maintenance will help keep your vehicle running well. Your Warranty and Service Records
Information booklet provides a comprehensive periodic maintenance schedule up to 150,000 miles
(240,000 km) of vehicle service. 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 105,000 miles (168,000 km) or at 120,000 miles (193,000 km) for
the 2.5T engine on AWD models. 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 car 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 tensioner
must be replaced every 105,000 miles (168,000 km) or at 120,000 miles (193,000 km) for the 2.5T
engine on AWD models. Engine damage will occur if the belt fails.
PCV system
(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 as follows:
· 5-cylinder turbo engine: at 120,000 miles (193,000 km), and every 45,000 miles (72,500 km)
thereafter.
· 6-cylinder turbo engine: at 105,000 miles (168,000 km), and every 45,000 miles (72,500 km)
thereafter.
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