VW Jetta 95 will not start when cold

1995 vw Jetta 110K milesMy car has a hard time starting in the mornings or when it sits idly for a while (when I park overnight) . On any bright and sunny day, it’s like the car is brand new - starts with no problems at all. Tried several mechanics and none of them have been able to diagnose the problem. To make it simple, cold outside - car will not start, warm/hot outside car will start.

Will not start? Do you mean you turn the key and nothing happens? Or you turn the key and the engine cranks over but won’t start?

Tester

the key will turn over, the car will attempt to start and you can hear it trying but it just doesn’t sometimes it might take about 10 minutes of trying before it starts and that is if the battery doesnt drain…

How long since it had a tune up (plugs, plug wires, fuel filter etc.)?