Fuel Burning Heater
Discovery 3 TDV6 may be fitted with a Webasto Thermo Top V fuel burning heater, and is used in the Discovery 3 to provide auxiliary heating of the engine coolant during cold weather. This is largely to aid emissions and to speed up cabin warm up.
Fitment
It is not fitted to all TDV6s. Notably, those in warm climates are not equipped.
Park Heater Functionality
Very early Discovery 3's had park heater settings in the Settings Menu but this was removed as part of the Enhancement Programme in 2005.
Site member stapldm has created instructions for fitting a park heater timer, which effectively retrofits the park heater functionality.
A further modification involving a GSM module (with SIM card) allows remote operation by means of either a phone call or SMS text message.
Cold Climate Timer
Land Rover did release an option for a pre-heat / cabin warmer timer (Webasto based) to be fitted in cold climates. Speak to your dealer for information.