After the hibernation of my SL55 built in 2002, the central locking door suddenly stopped working and after I had entered with the key and briefly turned the ignition key upside down, the alarm system triggered. The engine started immediately, but the message “Electronic aids switched off” appeared. I drove 100 km, then the ESP was suddenly back, but the battery indicator lit up. Over the winter, the car was connected to a power supply at the front. I had two new batteries installed in the summer. It all started when I replaced the yellow standlights with LEDs in the front. Now I rebuild everything back and ordered new pears from Philips. I hope that the problem has been solved. Did someone have similar experiences? Thanks for all the valuable tips and happy Easter!