Thank you for the responses - definitely opened my eyes and got me thinking.

Correct it is a diesel - I will double check the rubber seal on the engine cover. There is no 'smokeyness' just something that stimulates the nostrils - I will take some more pictures in the morning.

Thanks again,

Joe

Happy Friday everyone,

Have started to notice a few fumes honking out the van whilst I'm sat idling at traffic lights etc. so had a look underneath for anything obvious, the only abnormality I could see is the picture below, everything else seems to be ok (no discolour of coolant, not using ...