Smart 451 mhd Starterbatterie tauschen

Our Smart 451 mhd's starter battery is weak. A new 60Ah AGM battery needs to be installed, costing around €120. mhd is simply a start-stop system, but it requires special batteries that can handle the constant starting. I'm changing the battery and will show you how I did it. For your information: I'm not a trained mechanic and this was my first time doing this on a Smart. I've done it on other cars many times, but not on a Smart. I take no responsibility for the accuracy of what is shown in the video. Anyone without the necessary training or qualifications should leave electrical work to a professional garage.