Mercedes-Benz E500 intermittent starting issue with RPM failure and shutdown on Mercedes-Benz E500

Some Mercedes-Benz E500 owners report experiencing intermittent starting issues that may involve RPM failure and vehicle shutdown. These problems can stem from various causes, including a failing battery, faulty ignition switch, or loose wiring connections. Additionally, some owners have reported Electronic Ignition Switch (EIS) failure, which can lead to starting difficulties or complete immobilization of the vehicle. The health of the battery is often a primary factor in these starting issues, making it crucial for owners to ensure their battery is in good condition. While some may attempt DIY troubleshooting, many find it necessary to seek professional assistance to effectively diagnose and resolve these problems. Utilizing diagnostic tools like Xentry can also be beneficial in pinpointing the root cause of starting issues. Lastly, some E500 owners have noted the importance of checking specific components, such as the brake light switch or main relays, for signs of corrosion to aid in diagnosis.