Check for

Weak battery or loose battery connections.

One or more bad or weak glow plugs: Note- Glow plug test at relay area are not always reliable. If that test shows all ok, then turn on the key when engine is cold dont cranck, quickly touch around each glow plug area and feel for warmth, if you dont feel warmth or feel very little warmth aroung a particular glow plug, its the bad one.

Fuel you put recently can be a bad quality. Drain out as much as you can, refill a premium grade, add a good quality diesel additive and give it a try for about 50 miles drive. Then check next day.

Does this sound like a good plan.

I always wait for 15 seconds after the GP light goes off before I cranck.


MVK

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One penny saved is three penny earned.

1985 300D Turbo 179,000miles