Quote:
Originally Posted by opienor
Havenīt tried that but will do. Does this glow period change with temperature or is it a standard 25 secs regardless? I didnīt know the glowing lasted that long. Always thought glowing stopped when light goes out. Thanks for teaching 
With temps going way below zero F here in Norway during winter most diesel cars have a hard time every now and then. Mostly caused by dirty, clogged up and frozen fuel filters. Initially thought to be the problem with my car, but no.
The BMW guys continue their little investigation on my car tomorrow so crossing my fingers they will discover the reason. In the mean time my trusty 318i runs like a clock 
Thanks a lot for taking the time powers1 |
Its not temperature related!Glow plugs go out when the Glow plug module switches off (about 25 secs) or when you crank the engine,whichever happens first.
Normally,when the plugs are going faulty,letting them be on for a few more secs,helps them heat-up more.This is also a sign that they need changing as they are either taking longer to heat-up or you have a faulty plug(s).
In anycase ,in extreme below freezing temperatures,its always best to wait a few more secs,before you crank it, after the glow plug light goes out.
Above freezing,they are almost redundant.
I hope the Bmw guys there do their job!
Keep us posted please