My Dad has bought some diagnostics machine because of problems we've had in the past with cars in the family and the machine says works with all European cars etc etc. It goes on to explain that all cars after 1996 were required to be at least OBDII or along them lines and have a standard plug.
Works fine on my Astra but when we looked at the neighbours Berlingo the plug is different. It's like this

Image deleted by owner

The one on the machine is the same shape but the keyway at the bootom is not as high and it has a big slit across the middle, left to right. So what's wrong? Do they not all have a standard plug then?

My standard OBD lead plugs into my Ma's Berlingo with no problems. I can't say if it looks like yours as it's not here to look at.

I should add that diesels car were'nt OBD2 complient until after 2005. But my Ma's Berlingo is a 2000 diesel and it works!

Ah! I think you've answered my question there Owelly. You're a star ta. The diesels I've tried it on are 03 and 04.