Oh no this sounds expensive,
Well to answer uncleFester's question, yes there is a bit of cheese around the inside of it to. I think what happend is when it snowed, i drove of with loads of snow on my car and some of it went onto the engine via the front grill as the top of the engine was wet to.
To answer (andycupra's ) question the last oilchange was done sometime in may last year by a seat dealership.
what should i do???