Interesting to know that the cooling system can effect on the starting of the engine...
For conti cars, usually its the air intake system (air-mass) malfunction that can cause the engine difficult to start...
cooling system activates the auto choke if not mistaken. Cold time more fuel is pump in like in the morning.
When hot hard to start could be the fuel feed too lean or vaporizing....my 2 sens
what about the fuel smell? having the same problem, still not solved. juz let the engine running with my turbo timer.