Mercedes-Benz R320 car won't start after battery disconnection, only dim dash lights on Mercedes-Benz R320

Some Mercedes-Benz R320 owners report experiencing starting issues after a battery disconnection, characterized by dim dashboard lights. These symptoms may indicate underlying electrical problems, such as low battery voltage, a defective starter motor or relay, loose wiring, or a faulty alternator. Additionally, some owners find that testing the battery is crucial, as a bad battery can prevent the car from turning over, and jump-starting may help identify the issue. A faulty alternator is often cited as a common reason for starting failures, even when the battery appears fine. Furthermore, issues with key starting system components, including the starter motor and relay, can also hinder the engine from cranking. Owners are advised to seek professional testing, such as load testing, to assess the battery's health and determine its ability to hold voltage under starting conditions.