In cold weather, my diesel car will stall. This stalling stops once the engine is warmed up, and doesn't happen when I start the car in warmer weather. Why is this?

It sounds like this problem is related to the vehicle’s cold starting system, which could mean problems with a number of components. These could include the glow plugs, fuel injectors or a sensor. However, given this sounds highly inconvenient and potentially dangerous, we would recommend taking your vehicle to a diesel specialist who could diagnose exactly what the problem is and rectify it.