Hello, I am a wheelchair user and have a T5 with electric sliding door, cassette lift and electric seat console under the driver’s seat. The vehicle has two batteries. Both I renewed about 1.5 years ago. Unfortunately I now (in the 6th year) have problems with the battery power. The second battery supplies the additional installations and the sliding door. The first cares about the starter. Recently it often happens that I do not get behind the wheel alone, since the second battery is too hot. It’s not until the engine is on, it’s working fine. I had the batteries and alternator tested by the ADAC and VW. It’s all a good idea. Now my question: is there a way to start the engine from the outside or from the passenger side? Which modifications would be necessary? The starter battery is, by the way, at full strength. Thanks & Greeting.