Experiencing issues with your 1999 Mercedes E320 windows after a jump start? You’re not alone. Many owners of the W210 E-Class encounter electrical quirks following a battery drain and subsequent jump, and window malfunctions are a common complaint. It’s frustrating when your windows go down but struggle to go back up, requiring multiple presses of the switch. Let’s explore potential causes and troubleshooting steps to get your windows working smoothly again on your ’99 Mercedes E320.
One common suggestion circulating online involves a reset procedure. This typically includes holding the window switch in the “up” position for a few seconds after the window is closed for each window. Another step often mentioned involves manipulating the seats and headrests using their respective control buttons, followed by turning the steering wheel lock-to-lock to clear any ESP errors. While the original poster attempted these steps, they reported no success.
If the basic reset procedure doesn’t work on your 1999 Mercedes E320, the issue could stem from a few different sources. A weak battery, even after a jump start and overnight charge, can still cause electrical gremlins. It’s worth testing your battery’s voltage and health to rule this out. Another potential culprit is the window regulator or the window motor itself, although these are less likely to be directly triggered by a jump start. More plausibly, the issue could be related to the window switch or the Passenger Side Electronics (PSE) control module, which manages various comfort and convenience features, including the windows.
For a 1999 Mercedes E320 experiencing persistent window problems after a jump start, a systematic approach is best. Start by confirming your battery is in good condition. Check the fuses related to the power windows; a blown fuse could be a simple fix. Inspect the window switches for any signs of damage or malfunction. If these basic checks don’t resolve the issue, more advanced diagnostics might be necessary. Using a diagnostic tool like Mercedes-Benz Xentry can pinpoint the exact cause of the window malfunction by reading fault codes and testing individual components. While DIY troubleshooting is valuable, for complex electrical issues, professional diagnosis is often the most efficient path to restoring full functionality to your 1999 Mercedes E320 windows.
