When considering a used 2003 Mercedes-benz E320, it’s wise to be aware of potential issues that are common in models of this year. Several areas require careful inspection to ensure you’re making a sound purchase.
One significant concern is the potential for radiator failure, which can lead to coolant contaminating the transmission fluid. This mixing of fluids can cause serious transmission problems, a costly repair. It’s crucial to check the transmission fluid condition.
Another critical system to inspect is the Sensonic Brake Control (SBC). This brake-by-wire system, while innovative, is known for component failures. The SBC system in 2003 models has a limited extended warranty, likely now expired. Listen for any unusual brake system noises or warning lights.
Electrically, the 2003 E320 utilizes a dual battery system, which is more complex than later single-battery systems. Ensure both batteries are in good condition and that the battery control module is functioning correctly.
For older models like the 2003, the Teleaid/MBRACE system is another point to note. The analog system in these early cars is no longer supported without an expensive upgrade. This impacts emergency services and roadside assistance features that relied on this system.
Regardless of these points, regular maintenance is paramount. For any 2003 Mercedes-Benz E320, verify if the transmission fluid and filter have been replaced, especially if the car has 50,000-70,000 miles or more.
Before buying, it’s highly recommended to have a pre-purchase inspection performed by a qualified independent mechanic. Ideally, they should use a Star Diagnostic system to check for error logs and fault codes in all modules. These logs can reveal past and present issues, providing valuable insight into the car’s condition and maintenance history.
In summary, while a 2003 Mercedes-Benz E320 can be a good used car option, being informed about these potential problem areas and conducting a thorough inspection is essential for peace of mind.
