B3030 plugs

[Double Orange]

Chuck
1 off
2 on
3 start
when turning key slowly.. between 2. on... and ..3 start.. your glow plugs will activate regardless of the ambient temperature... the glow plugs will continue to activate as long as you hold the key between 2 on...and 3 start.

 

[chuck4389]

Ah, yes! tried it this morning.
How counterintuitive!
Thanks double orange!