Last August I posted as follows - "Anybody had fuel expansion issues in this rare hot weather? My 280 estate was at roadside for an hour in full sunlight.An hour later neighbour tells me fuel running on to road behind o/s rear wheel. Tank was less than half full. I eased pressure at filler cap and fuel gushed out." On 25 March exactly same issue arose, but this time weather cool and car straight and level on my drive. One third tank of petrol, neighbour calls and tells me car is leaking pet