Table 1 shows 15 common engine and engine cooling related problems of the 2016 Hyundai Elantra. The number one most common problem is related to the engine and engine cooling (82 problems). The second most common problem is related to the engine knocking noise (four problems).
The coolant system is failing after it was fully replaced in November of 2024 and I got the car of may 2025 with only two previous owners. Coolant system failing after me only have the car for 6 months when the car sat for 5 months. Read details...
While driving on the highway at 70 mph I heard a knocking sound, there were not any warning lights on. I turned down the radio and a/c so I could hear it better, moved to the right lane and slowed down, a red oil light flashed on briefly and the knocking got very loud. Read details...
While driving my car will stall without any warning. I am driving straight without putting on brakes or accelerating. I can restart it. Again without any notice it stalls. This has happened at least 10 times and am scared to drive my car. Read details...