w245 AC condensor mystery!

[Norfolkandchance]

Hi,

Trying to put together my wife's conversation with the air con repair man who came out to our B200 Turbo.

He is definitely saying that the condenser is leaking but it is a combination part with the coolant radiator. However, he seems to think that the two parts can be replaced separately but that he can't get a price for the condenser on its own, though he thinks he could? but he couldn't at the time? Then he'd replace it?

So I think the questions are:
what parts do we need?
how can I find out how much they cost?
can we get pattern ones?

Thanks