my 1.9 laguna diesel will only start with a jump off another car, or a battery booster. I have had a brand new battery on it, just put brand new glow plugs in it, and its the same. If its warm it will start on its own as it should. I runs fine, no missing or flat spots.

When turning the key on a cold morning, the yellow light comes on as it should, then goes out, then I try to start and the light flashes and the engine just turns without firing. It may fire once for a split second on the first attempt, but it dies and the light flashes.

Its strange how it will start with the help of another battery.

any answers?

thanks

Graeme, February 2009