How to activate the fuel heater using VDASH?
You can do this using two different ways:
A/ With the timer and additional heater - this option will display the timer in the menu, and the heater will begin to operate automatically once the outside temperature has decreased to approximately 5 degrees Celsius
B/ With the timer only - the fuel heater will only operate once it has been turn on directly with the timer
Before you begin, make sure you have the CEM PIN for your vehicle by connecting it to VDASH and checking the CEM PIN status (see the appendix below), if this cannot be done then check this page: https://d5t5.com/article/volvo-cem-pin-code
In order to activate the fuel heater follow these easy steps:
Once the change has been fully done, lock the vehicle for 5 minutes.