Mercedes-Benz gl450 Jeep sometimes refuels without taking the aisle.

Have you had your car serviced? Maintenance includes engine oil, mechanical filter, air filter, cleaning throttle valve of fuel injection head and inspection items. If it has been maintained, fuel additives should be added to improve engine performance. If it has not been maintained, please maintain the vehicle as required. Engine jitter is caused by many reasons, such as excessive carbon deposition in valves and throttles, poor fuel injection by injectors, poor ignition system, inaccurate airflow perception and so on.