Heated oxygen sensors
The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.
See also:
Fuel requirements
Octane rating
Minimum octane
Typical pump octane label
Volvo recommends premium for best performance,
but using 87 octane1 or above will not
affect engine reliability.
Volvo engines are desi ...
Marker lines
The PAC system's lines
1 Marker line for a 1-foot (30-centimeter)
zone behind the vehicle
2 Marker line for the clear back-up zone
3 "Wheel tracks"
The solid line (1) indicates a zon ...
Taillight housing
The bulbs in the taillight cluster are replaced from inside the trunk (not the
LED functions).
NOTE
Before starting to replace a bulb, see page 306.
1. Remove the covers in the left/right ...