See also:

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 ...

Audible/visual alarm signal
• An audible alarm signal is given by a battery powered siren. The alarm cycle lasts for 30 seconds. • The visual alarm signal is given by flashing all turn signals for approximately 5 minutes ...

External audio source volume
If an external devices such as an MP3 player or an iPod is connected to the AUX socket, the device's volume may be different from the volume of the internal sound sources such as the disc play ...