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Glow plugs resistance should be ~0.8 Ω @ 25°C, temperature is important to consider so:
a) it is acceptable.
b) above 70°C coolant temperature the "glow" is not active. (one can only hope CrD doesn't have the Di type glow period time of 5 mins if it does consider checking/replacing the plugs and fitting aftermarket timer to reduce glow period to 30 secs max.)
I'd quickly guessed you have fuel problems as when engine is hot glow plugs are out of action. I wonder if you have the dreaded low rail pressure due to fuel rail pressure relief valve playing up.
Any DTCs (Diagnostic Trouble Codes)?
Cheers
Last edited by Rumcajs; 21st June 2015 at 12:17 PM.