The state of the candles can be roughly determined by their appearance. The clearance needs to be checked first. The gap between Renault Sandero's electrodes is 0.95 +/-0.05 mm.
We also need to pay attention to the color of the tanning. The candlelight must have a light brown. The black color indicates the need to replace the candles.
It is not permitted to use candles with weaed or oil electrodes. In addition, it is necessary to make sure that there is no damage to the insulator or the electrodes of the candle.
