See also:

Air distribution table
...

Changing coolant
Normally, the coolant does not need to be changed. If the system must be drained, consult a trained and qualified Volvo service technician. Do not top off with water only. This reduces the rust- ...

Cleaning the sensors
Park assist sensors The sensors must be cleaned regularly to ensure that they work properly. Clean them with water and a suitable car washing detergent. Ice and snow covering the sensors may c ...