You need to pay close attention to the sound of the engine, some of them talking about serious breakage. On short mileage, the engine will likely produce detonation (metal) sounds. They may be caused by fueling of fuelwood, failure of detonation sensor, engine overloading due to early inclusion of higher gear or formation of a tan in combustion chambers. In any case, the suspect sounds in the engine need to show the car to the master as soon as possible so as not to aggravate the damage. In general, extraneous sounds disappear after two or three thousand kilometers of mileage.
