One problem related to loud engine noise has been reported for the 2012 Mercedes Benz ML350. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Mercedes Benz ML350 based on all problems reported for the 2012 ML350.
Cuando enciendo mi guagua hace un ruido muy fuerte y se siente como si se va a apagar. El motor se puede romper en cualquier momento. Si se ha llevado a diferentes talleres para confirmar el ruido y me refieren que son mas DE 80 guaguas que han visitado su taller con el mismo problema. No presenta ninguna advertencia cuando aparecio por primera vez. En el taller me dicen que se debe cambiar el motor por que son los motor stroker y eso puede causar un feo accidente. When I turn on my bus it makes a very loud noise and it feels like it's going to turn off. The engine can break at any time. If it has been taken to different workshops to confirm the noise and they tell me that there are more than 80 buses that have visited their workshop with the same problem. It does not present any warning when it first appeared. In the workshop they tell me that the engine must be changed because they are the stroker engines and that can cause an ugly accident.