* Oil leaks: Excessive oil can cause the oil seals in the engine to fail resulting in oil leaks.
* Spark plug fouling: Too much oil can foul the spark plugs reducing the engine’s performance and causing it to run rough.
* Engine knock: In some cases, excessive oil can cause the engine to knock.
* Engine damage: In severe cases, too much oil can damage the engine.
If you think the oil level in your ML320 is too high it’s important to have it checked by a qualified mechanic as soon as possible.
