Driving back from the missus' house just now and i turned on the heater coz i was fecking cold and i noticed a smell coming from the vents. I recognised it instantly - i used to always smell it in my dads cozzie and i remember him telling me it was a hole in some rubber pipe...? however this was when i was a bit younger and memory is not all that. So i lifted the bonnet and had a wiff and it was the exact same smell. I would phone my dad and ask but its half 12 and im impatient! Anyone help me? It's not exactly a horrible smell, almost sweet smelling. Im not sure how to describe it!
But yeah if anyone knows what it may be, let me know!