Air Temperture Sensor

Hi all,
This is my first post after finding a question about the air temperature sensor on a 52 reg car.
Yesterday I noticed that the display inside the car read 20°C. I thought fair enough, as it was rather warm. Then it went to over 50°C! Definitely not that hot.
From reading the other post it is either the sensor that has failed, or something to do with the BSI.

My question is - Does anyone know whether this kind of fault is covered under warranty?

My car is a Nov 2010, 60 reg, 1.4i 75bhp, vtr+

On a slightly different note does anyone know how to get the air freshener thingy out to change the cartridge?

Hi Relentless, welcome to the forum,

I don't know the warranty fine print, but the dealer can often be encouraged with a friendly phone call.

to remove the air freshener, try:

1. Press the dial and turn it a quarter of a turn anti-clockwise.
2. Remove the cartridge.
3. Refit its sealing case.

and to refit it,

1. Remove the cartridge from the sealing case.
2. Install the cartridge (flower at top left).
3. Press the dial and turn it a quarter of a turn clockwise.