My cars got a patch of diesel under the drivers side door this morning,and its all around the end of the cooler,

anyone experienced this before?

Possible cause or solution without just having to replace the whole unit?

Any advice welcome.

cheers

Not me personally. Could you get one from a scrap car? I imagine they aren't the usual thing to leak

possible cause : it could be loose .... rattling about couldve broken / damaged it .... mine is currently need to find time to drop the plastic down to tighten it up.

I've replaced one before, took one off a pd golf at the scrap yard, bracket was slightly different but you would never know.