2.2ltr diesel cold starting trouble

[Brinyan]

I have a 2008 Vito, with the 2.2 Diesel engine.
Had trouble starting a couple of weeks back after a very cold frosty night.
Since then, I had the glow plugs replaced, as they were the originals at 133k miles old.
Been fine until a very cold frosty night again last night & just turning over & over this morning, not firing, until later when it wasn’t so cold.
Any advice most welcome. Thanks

[Mercdriver]

Battery OK brinian? Maybe starter load plus glow plugs is maybe too much for battery in really cold weather

[hyphen]

Starter Motor? As for a 2008 car it is probably on way out, so I would look to test and replace it if needed.

And test battery/alternator ofcourse.

Edited by hyphen on Wednesday 22 December 23:24

[Sheepshanks]

On Merc cars can be the seals in fuel lines letting air in - mine can be iffy if parked facing up hill. Also with low fuel level.

Fuel rail pressure could be low.

[Blackpuddin]

Over voltage relay?