Thread: Heating tim ffrom 4 engine heater

Hello friends,
I need one answer on my question :
does anybody know at turbo diesel engine 1.9TDI 2001 year (motor AHF) when the motor is started on ,how long heater in engine are switched on- 1 minute 2 minutes or 5 minutes after this time (heating time is for me important) computer switched of all 4 heaters.
It is very simply to check this time,just remove one cover from heater and connect 12V bulb between cover and ground.Start the engine and look in the watch ,when the light in bulb turned of in this moment look the time in watch.
This time please post here.
Many thanks for help in advance