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:
Unlocking/locking
Unlocking
1. Insert the remote key into the ignition slot as far as possible.
2. Press the START/STOP ENGINE button.
> A sound will be audible when the lock releases.
Vehicles with keyless driv ...
Changing coolant
Coolant reservoir
Normally, the coolant does not need to be
changed. If the system must be drained, consult
a trained and qualified Volvo service technician.
CAUTION
• If necessary, top up th ...
Rear seats
The seat belt reminder in the rear seat has two
additional functions:
• It provides information about which seat
belts are fastened in the rear seat. A message
will appear in the information di ...
