When my wife's Cooper D is idling there is a strong exhaust smell in the cabin. Not noticeable when driving. The smell can be reduced by using the recirculating air button.
The more I smell it I'm thinking it maybe hot oil which isn't good.
I had a quick look under the bonnet tonight in the rain when my wife got home. I noticed what I think is oil sitting next to number 3 injector. If it is it could possibly explain the smell.
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