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:
Memory status
In phone mode, the memory status of the infotainment system's phone book and
the connected cell phone's phone book can be seen in Phone menu Phone book Memory
status. ...
Calibration
The compass may need to be calibrated if, for example, the vehicle is driven
into a new magnetic zone. The character C is shown in the mirror's display if calibration
is necessary.
1. Stop th ...
