The B4204TE engine may experience higher oil consumption, which can lead to the need for more frequent oil changes.

Turbochargers can wear out or fail, leading to reduced engine performance and the need for expensive repairs.

Issues with the timing chain can cause rattling noises and, if not addressed, can lead to severe engine damage.

Excessive wear on piston rings can result in loss of compression and reduced engine performance.

Faulty fuel injectors can cause misfires, rough idling, and reduced fuel efficiency.

Problems with the cooling system can lead to overheating, which can cause significant engine damage if not promptly addressed.

The ECU can experience software or hardware issues that affect engine performance and drivability.

Direct injection engines like the B4204TE can suffer from carbon buildup on the intake valves, leading to reduced airflow and performance.

Four-cylinder engines can sometimes suffer from balance issues, leading to increased vibration and noise.

A malfunctioning EGR valve can cause issues with emissions and engine performance.

Sometimes, the DBS system can fail to engage properly, leading to reduced braking performance.

Due to issues with the turbocharger or fuel delivery system, the engine may experience a significant loss of power.

Turbocharged engines like the B4204TSH can sometimes consume more oil than expected, leading to frequent top-ups.

Issues with the ignition coils or spark plugs can cause the engine to misfire, leading to rough running and reduced efficiency.

If not properly maintained, the timing belt or chain can wear out prematurely, causing engine performance issues or even catastrophic failure.

Problems with the cooling system, such as a failing water pump or radiator, can lead to overheating.

With the integration of an electric motor, there can be complications related to the battery, wiring, or control systems.

Faulty catalytic converters or oxygen sensors can lead to poor emissions performance and engine warning lights.

Problems with the fuel injectors or fuel pump can lead to poor fuel delivery and engine performance issues.

The DBS system may not function correctly, leading to inadequate braking in emergencies.

Operating at high RPMs (4,350-13,900) consistently can lead to engine wear and potential failure.

The high engine brake horsepower (402 hp) can cause overheating issues if the cooling system is not adequately maintained.

The E400V6 engine may suffer from turbocharger problems, including boost leaks and turbine damage.

High-performance engines like the E400V6 may consume more oil, requiring frequent checks and top-ups.

The timing chain in the E400V6 can wear out over time, leading to potential engine timing issues.

The high-performance requirements can lead to clogged or malfunctioning fuel injectors, affecting engine performance.

The exhaust system may suffer from corrosion, especially if the vehicle is used in areas with harsh weather conditions.