2004 Audi S4 Problems: A Review Of Common Issues

The 2004 Audi S4 is a highly sought-after sports car with impressive performance capabilities. However, like any aging vehicle, it is not immune to problems. In this review, we will explore some of the most common issues reported by Audi S4 owners, and provide insight into potential solutions. Whether you are a current owner or considering purchasing a used S4, this information will be invaluable in maintaining the health of your vehicle.

Before diving into the specifics of the S4's mechanical issues, it is worth noting that this vehicle is not immune to the general problems that plague many older cars. For example, many owners report issues with the car's electrical system, including malfunctioning windows, locks, and radio. Additionally, the S4's leather seats are known to wear and tear easily, and the car's paint is prone to chipping and fading. While these issues may not be unique to the S4, they are certainly worth keeping in mind when considering the overall condition of the vehicle.

Turning our attention specifically to the S4's mechanical issues, one of the most commonly reported problems is with the car's engine. Specifically, owners have reported a knocking or ticking sound coming from the engine, which can be indicative of a failing camshaft adjuster. This issue is typically accompanied by a check engine light, and requires immediate attention from a qualified mechanic. If left unaddressed, a failing camshaft adjuster can cause serious damage to the engine and result in costly repairs.

The Transmission Issue

Another common issue reported by S4 owners is with the car's transmission. Specifically, many owners have reported that the car's automatic transmission can become stuck in gear, or fail to shift smoothly. This issue is typically caused by a failing transmission control module, which can be replaced by a qualified mechanic. However, it is worth noting that a failing transmission control module can also cause the car to go into "limp mode," which significantly limits the car's performance capabilities. If you notice any issues with your S4's transmission, it is important to address them immediately to avoid further damage.

The Timing Chain Tensioner Issue

Another issue that has been reported by S4 owners is with the car's timing chain tensioner. Specifically, many owners have reported a rattling or ticking sound coming from the engine, which can be indicative of a failing tensioner. If left unaddressed, a failing timing chain tensioner can cause serious damage to the engine, and result in costly repairs. To avoid this issue, it is recommended that the timing chain tensioner be replaced every 75,000 miles.

The Suspension Issue

Finally, many S4 owners have reported issues with the car's suspension, specifically with the car's shocks and struts. Owners have reported that the car can become bouncy or unstable, which can significantly impact the car's handling and performance capabilities. If you notice any issues with your S4's suspension, it is important to have it inspected by a qualified mechanic, who can recommend the best course of action.

In conclusion, while the 2004 Audi S4 is an impressive sports car with a lot of performance potential, it is not immune to problems. As with any aging vehicle, it is important to stay on top of maintenance and address issues as soon as they arise. By doing so, you can ensure that your S4 remains in top condition for years to come.