Beyond the difficulties of c300 cold start.

Causes and solutions of difficulties in cold starting of automobiles;

First, check whether there is too much carbon deposit at the throttle valve and idle valve. Too much carbon deposition can easily lead to the blockage of idle airway, which in turn leads to poor intake. Therefore, if there is too much carbon deposit, it is necessary to clean it up first, and then check whether the water temperature sensor of the engine control system works normally. Both of the above problems will make it difficult to start the engine cold.

The reasons for the deterioration of low-temperature starting conditions are: high viscosity of engine oil reduces the starting speed, low temperature reduces the ion concentration of the battery, reduces the ignition energy, and low temperature reduces the molecular activity, making it difficult to form combustible gas mixture. So it is difficult to start at low temperature. You can step on the clutch and light the fire.