Hello, good day and all still a healthy and good new year, My name is Jürgen, I am back here after many years, and had some difficulties to come in, because I somehow had missed that my old account is deleted so now re-created. My questions: I have a silver-coloured SL 500 R230 from 2002 and it was now 2 years under a tarpaulin in my hall, of course everything is empty which can be empty. My alarm siren was already before the S Filling defective (only makes blub blub blub or so similar when I use the key) and now I think about an exchange after or the replacement of the battery installed in it. What I wanted to get rid of is my horror about the new prices of the alarm siren, namely now 1,800,- Euro new, at the RKG in Siegburg and also 360,- Euro for the flat support battery with 35 AH 540A battery front. Are they spinning or have I missed something?! Are there cheaper variants, because I find e the small battery always only with 520A? Greetings and I am happy about your one or other tip