The Picasso HDI will put its glow plug light on, but, it is on for so little
time, the filament in the bulb won't begin to glow.
If I remember correctly, I read somewhere at zero degrees, the HDI glow
plugs work for a quarter of a second.
When it was cold last year, I saw the briefest glimpse of light when turning
the key. The car statrted perfectly.
The heater light will come on very briefly. Depending on outside temp.Only
on VERY cold mornings ie -4 deg c last winter just a couple of seconds.In
our normal British climate you will assume it does not work.
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