What to Do When the E300L Reversing Camera Doesn't Display?
3 Answers
If damaged, it should be repaired at a repair shop or 4S store, and a new camera may need to be replaced if necessary. If there is any foreign object blocking the camera, simply remove it. If you frequently drive on rough roads, the bumpy environment may cause the internal wiring of the vehicle to become loose or detached. In this case, the center console panel needs to be removed for inspection. If the car's lights or multimedia system are used for an extended period while the engine is off, the battery may become depleted. Recharging or replacing the battery will resolve the issue.
I've noticed that the reversing camera issue on the Mercedes-Benz E300L is quite common. First, check if the camera lens is blocked by mud or water droplets. Last time, a car owner had mud splashed onto the lens while reversing, and it was immediately fixed after wiping it clean with a wet tissue. Then, check the central control settings to see if the reversing camera function was accidentally turned off. A system restart can resolve many software freeze issues. Next, inspect the fuse. Look for the reversing camera fuse in the fuse box located at the lower left of the driver's seat, and use tweezers to pull it out and check if it's blown. Finally, consider wiring issues. Frequent opening and closing of the trunk may cause loose connections, especially during rainy days when short circuits are more likely. If these simple checks don't resolve the problem, you'll need to take it to a shop to connect to a computer and read the fault codes. If the camera module is faulty, it will cost over two thousand to replace it with a new one.
My old E300L also experienced a black screen while reversing, and it turned out that the high-pressure water gun during car washing damaged the camera's sealing ring. I suggest you first check the camera itself—use your phone's flashlight to illuminate the lens and see if there are any bright spots or color bars on the screen. Also, try repeatedly opening and closing the trunk while reversing; intermittent issues often indicate poor wiring contact. Another time, a modification shop messed up the wiring while installing my dashcam, which interfered with the reverse signal. If you can't figure it out yourself, don't force it—the dealership's specialized computer can diagnose within five minutes whether it's a camera power supply issue or a video signal interruption. By the way, turning off the engine and locking the car for half an hour allows the infotainment system to fully reboot, which works great for temporary freezes.
