When I stop my Mk.1 Mondeo after a reasonable run there's a smell sort of like hot tar/rubber which builds for 10 seconds or so then disappears completely. If I stop then restart within a minute or so you get a waft through the air vents too. No sign of it while I'm driving along, even on hot days, hard driving or motorway journeys
All the wheels and tyres are cool to the touch, so it's not brake binding.
Can't smell it anywhere specific under the bonnet.
No noticeable loss of oil or water over the last 1000 miles.
No obvious melted pipework.
Any ideas?