Good morning from New Zealand! Last year I bought a SL500 Bj 1994 76,000km and am actually very satisfied! I have the problem that it first runs completely normal and calmly after starting. This only lasts about 3-5 minutes – apparently until the engine has some temperature – and then it seems that the electronics turn off 4 cylinders. The engine then sounds like a poorly adjusted Trabbi and has almost no power. This condition then stops about 2-3 minutes and suddenly the full power is back and the car runs like ever. My factory city has already had this electronic reading device on the engine… but can’t find a mistake. Maybe someone of you has an idea what it might be. Thank you in advance!