The DBS system may not engage or function correctly, potentially due to software issues or sensor malfunctions.

Some 2.0T engines have a history of higher-than-normal oil consumption which could lead to engine wear or damage if not monitored and addressed.

The timing chain tensioner in some Audi engines has been known to fail, leading to potential engine timing issues and severe engine damage.

Direct injection engines, like the 2.0T, can suffer from carbon buildup on the intake valves, leading to rough idle, misfires, or reduced performance.

The turbocharger can develop issues over time, such as bearing wear or wastegate failure, which can affect engine performance.

Modern Audis, including the S5, are known to experience various electrical issues, from minor sensor glitches to more severe wiring problems.

Potential for coolant leaks, which could cause the engine to overheat and lead to significant damage if not addressed promptly.

Issues with the transmission such as hesitation, rough shifting, or even failure have been reported in some models and years.

The Positive Crankcase Ventilation (PCV) valve may fail, causing increased oil consumption and potential engine performance issues.

Direct injection systems can sometimes have fuel injector problems, leading to misfires, poor fuel economy, and reduced engine performance.

Oil leaks can occur around the valve cover gaskets, oil pan, and other engine seals, leading to reduced engine performance and potential damage.

The timing chain can stretch or wear over time, leading to poor engine performance, noise, and potential engine damage if not addressed.

The turbocharger can fail due to oil contamination, poor maintenance, or high mileage, leading to reduced power and potential engine damage.

Direct injection engines are prone to carbon buildup on intake valves, which can cause rough idling, misfires, and reduced fuel efficiency.

Issues with the water pump, thermostat, or radiator can cause the engine to overheat, leading to potential damage if not promptly repaired.

Faulty or clogged fuel injectors can cause poor engine performance, reduced fuel efficiency, and misfires.

Ignition coils can fail over time, leading to misfires, poor engine performance, and difficulty starting the engine.

Problems with the EGR valve, catalytic converter, or other emission control components can lead to increased emissions and potential engine performance issues.

Oil leaks can occur around the valve cover gaskets, oil pan, and other engine seals, leading to reduced engine performance and potential damage.

The timing chain can stretch or wear over time, leading to poor engine performance, noise, and potential engine damage if not addressed.

The turbocharger can fail due to oil contamination, poor maintenance, or high mileage, leading to reduced power and potential engine damage.

Direct injection engines are prone to carbon buildup on intake valves, which can cause rough idling, misfires, and reduced fuel efficiency.

Issues with the water pump, thermostat, or radiator can cause the engine to overheat, leading to potential damage if not promptly repaired.

Faulty or clogged fuel injectors can cause poor engine performance, reduced fuel efficiency, and misfires.

Ignition coils can fail over time, leading to misfires, poor engine performance, and difficulty starting the engine.

Problems with the EGR valve, catalytic converter, or other emission control components can lead to increased emissions and potential engine performance issues.