Fuel filter
The fuel filter  should be  replaced  at 105,000 miles (168,000 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  and 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 vehicle and  its  emission control systems, the timing belt and  belt tensioner must  be
replaced  every 105,000 miles (168,000 km). 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 105,000 miles (168,000 km) and  thereafter, again at 150,000 mile (240,000 km) intervals.
Spark plugs
The spark plugs should be  replaced  every 45,000 miles (72,000 km) under normal driving conditions. City driving or
fast  highway  driving may necessitate replacement  sooner.
Under normal driving conditions, spark plugs require no maintenance between replacement  intervals.  When installing
new plugs, be  sure to use the right type and  to tighten them correctly. When changing the plugs, clean the terminals
and  rubber seals.  Also check that the suppressor connectors are in good condition. Cracked or damaged connectors
should be  replaced.
pg. 111 Engine compartment
Engine  compartment S40/V40
1 Power brakes 
2 Brake fluid reservoir 
3 Fusebox 
4 Air cleaner  
5 Battery  
7 Radiator  
8 Oil filter  
10 Engine oil dipstick 
11 Generator 
12 Windshield/headlight washer fluid reservoir 
13 Power steering pump 
14 Power steering fluid reservoir 
15 Engine oil filler  cap 
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        Seat belts2,3
Seat belts - cleaning105
Seats47
Service reminder indicator23
Servicing110,111
Shift  lock66
Shiftlock release99
Shiftlock release (override)99
Side Impact Protection System  (SIPS)8
Side marker lamp replacement90
Side-view  mirrors  - heated26
SIPS8
Snow chains81
Snow tires81
Spare tire84
Spare tire (sedan)57
Spark plugs124
Specifications121
SRS5,6,7
SRS diagnostic system22
SRS warning light5,22
Start inhibitor  (immobilizer)40
Starting the engine65
Steering wheel adjustment34
Steering wheel lock26
Storage compartments54
Studded tires81
Sun roof51,52
T
Tachometer20
Tailgate (opening/locking)45
Technical  Data - audio142
Temperature gauge20
Temporary  spare tire84
Tires - changing87
Tire pressure82
Tires80
Tool kit86
Towing70,71
Towing a  trailer78
Traction Control System  (TRACS)23,74
Trailer hitch -detachable76
Trailer towing78
Transmission Lamp67
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