The B4204TS engine is turbocharged and supercharged, and turbocharger components can wear out or fail, leading to decreased engine performance and increased exhaust emissions.

Turbocharged engines like the B4204TS may experience oil leaks from seals and gaskets, especially if maintenance is neglected, leading to potential engine damage if not addressed.

Direct-injection engines, such as the B4204TS, can suffer from carbon build-up on intake valves, which may lead to rough idling, poor acceleration, and reduced fuel efficiency.

Some 4-cylinder Volvo engines have experienced timing chain tensioner problems, which can lead to engine noise or, in severe cases, timing chain failure.

Engine systems under high pressure, such as the B4204TS, can experience failures in the fuel pump, affecting engine performance and reliability.

The supercharged system may experience belt wear over time, which could lead to loss of supercharging capabilities if not replaced periodically.

Turbocharged and supercharged engines generate more heat, and any malfunction in the cooling system can lead to overheating issues and potential engine damage.

A common problem with turbocharged engines like the B4204TS is engine misfire, often due to spark plug issues, ignition coil failures, or fuel injector problems.

Turbocharged engines, such as the B4204TS, may experience turbocharger issues including boost leaks, worn bearings, or failed turbines, leading to a loss of power.

Engines like the B4204TS can sometimes consume oil at a higher rate, which might be due to worn piston rings or valve seals.

Issues with the cooling system, such as radiator, thermostat, or water pump failures, can lead to overheating in the B4204TS engine.

The B4204TS engine might experience timing chain wear over time, leading to poor engine performance or even engine failure if not addressed.

Problems with the fuel pump or fuel filter can lead to inadequate fuel delivery, which impacts the performance of the B4204TS engine.

Direct-injection engines like the B4204TS can suffer from carbon buildup on the intake valves, leading to rough idling and performance issues.

Turbocharged and supercharged engines can develop oil leaks due to high pressures and temperatures, which can cause seals and gaskets to fail.

High-pressure systems like the B4204TS can experience wear and tear on the turbocharger and supercharger components, leading to reduced performance or failure.

The 4-cylinder configuration, combined with high RPMs, can put additional stress on the timing chain or belt, potentially leading to stretching or breaking.

High-performance engines generate more heat, putting extra strain on the cooling system. This can result in coolant leaks, radiator issues, or overheating.

Direct injection engines often suffer from carbon build-up on intake valves, which can cause rough idling, reduced power, and poor fuel economy.

The high-pressure fuel system in turbocharged and supercharged engines can develop issues such as fuel pump failure or clogged fuel injectors, leading to performance problems.

High-pressure turbocharged engines are more prone to knocking or pre-detonation, which can cause engine damage if not addressed.

Modern engines rely heavily on sensors (e.g., oxygen sensors, turbo boost sensors) to operate efficiently. Failures in these sensors can lead to poor engine performance or check engine lights.

The turbo and supercharger increase exhaust temperatures, which can lead to issues such as cracked manifolds or failing catalytic converters.

Due to the complexity of a turbocharged and supercharged engine, maintenance and repair costs can be higher compared to naturally aspirated engines.