Deposit control gasoline (detergent additives)

Volvo recommends the use of detergent gasoline to control engine deposits. Detergent gasoline is effective in keeping injectors and intake valves clean. Consistent use of deposit control gasolines will help ensure good drivability and fuel economy. If you are not sure whether the gasoline contains deposit control additives, check with the service station operator.
NOTE
Volvo does not recommend the use of external fuel injector cleaning systems.
See also:
Climate control maintenance
Special tools and equipment are required to
maintain and carry out repairs on the climate
system. Work of this type should only be done
by a trained and qualified Volvo service technician. ...
Steering wheel keypad
The four buttons on the steering wheel keypad
can be used to control the audio system. The
steering wheel keypad can be used to adjust
volume, shift between preset stations and
change CD tracks. ...
Active chassis (Four C)
Active chassis, Four-C (Continuously Controlled Chassis Concept), regulates the
characteristics of the shock absorbers so that the car's driving characteristics
can be adjusted. There are thre ...
