Common issue with many engines; may involve gaskets or seals wearing out.

Timing chain can stretch or fail, leading to engine misalignment and potential engine damage.

Turbochargers can fail or wear out, leading to reduced engine performance or failure.

Direct fuel injection engines are prone to carbon buildup on intake valves, affecting performance.

Radiator, water pump, or thermostat issues can lead to overheating.

Fuel injectors can become clogged or fail, leading to poor fuel delivery and engine performance.

Various sensors (O2, MAF, etc.) can fail, leading to incorrect engine management and performance issues.

Some engines may consume more oil than normal, requiring frequent top-ups.

The DBS system may fail to engage properly, resulting in a lack of braking assistance during emergency situations.

In-line engines, like the M256, can experience misfires due to issues with fuel injectors, spark plugs, or ignition coils.

The turbocharger (TC) may develop problems such as oil leaks, bearing failures, or compressor wheel damage, affecting engine performance.

Direct fuel injection systems can encounter issues like clogged injectors or high-pressure fuel pump failures, leading to poor engine performance.

Some M256 engines may consume more oil than expected, often due to piston ring or valve seal wear.

The timing chain tensioner in the M256 engine may fail, leading to potential timing chain slack and engine timing issues.

The M256 engine's cooling system might experience failures in components like the water pump or thermostat, causing overheating.

The ECU may develop software or hardware issues, resulting in poor engine performance or erratic behavior.

Components such as the EGR valve or catalytic converters can fail, leading to increased emissions and potential engine check lights.

In-line engines can sometimes suffer from balance-related vibrations, especially if engine mounts wear out or fail.

DBS systems can sometimes fail to activate or engage properly, which can lead to reduced braking efficiency in emergency situations.

V-shaped engines like the M278 are prone to oil leaks, especially around gaskets and seals due to their complex configuration.

The M278 engine, with its direct fuel injection, can experience misfires due to carbon buildup on the intake valves.

The timing chain in the M278 engine can stretch or wear out over time, leading to timing issues and potential engine damage.

The M278 is equipped with turbochargers that can fail or suffer from reduced efficiency, leading to decreased performance.

Issues in the cooling system, such as radiator or water pump failure, can cause the engine to overheat.

The complex electronics in the 2018 MERCEDES-BENZ CLS-Class can lead to various electrical problems, affecting engine performance and other systems.

Direct fuel injection systems can experience injector failures or clogging, leading to poor engine performance and fuel economy.