Misfires can occur due to a variety of reasons including faulty spark plugs, ignition coils, or fuel injectors. In a complex V-shaped engine like the M256, these issues can be challenging to diagnose without proper equipment.

The Mercedes-Benz M256 engine has been noted for potential oil leaks, often due to worn gaskets or seals over time. Regular inspection and maintenance can help in early detection and repair.

The M256 engine, like many modern engines, utilizes a timing chain which can suffer from wear over time, leading to noise or more severe engine issues if not addressed.

Turbocharger-related problems such as boost leaks or turbo failure can occur, especially if the engine is not regularly maintained or if oil change intervals are not adhered to.

Coolant leaks can develop in the M256 engine, often detectable by a sweet smell or visible puddles under the vehicle. These could be due to hose deterioration or radiator issues.

With advanced engine management systems, the M256 can experience electrical problems such as sensor failures or ECU-related issues, which can affect engine performance and reliability.

DBS may fail to properly assist during emergency braking, which can increase stopping distances.

Misfires in the M256 engine could be due to ignition coil failure, fuel injector issues, or carbon buildup.

The M256 engine features a turbocharger that may experience failure due to oil contamination or bearing wear.

The timing chain in the M256 engine may stretch or wear out prematurely, leading to engine performance issues.

The M256 engine may develop oil leaks from seals or gaskets, potentially leading to lower oil levels and engine damage.

Issues such as radiator leaks or water pump failures can lead to overheating of the M256 engine.

Problems such as clogged fuel injectors or a failing fuel pump can lead to poor engine performance or stalling.

Modern Mercedes-Benz vehicles, including the GLE-Class, are prone to electrical problems such as sensor failures or wiring issues.