always when the engine is cold and I start it all lights in and on the car also the rear lights or zb the sliding roof does not open in one piece but piece by piece, furthermore the speed needle always stands at 1500 turns, you also hear that the motor runs restlessly when I only start the ignition flashes nothing, only when the engine starts when the engine is warm does not occur the problem and the speed range is normal when you start the cold directly the gas pedal Entered then the problem is also directly away have so far replaced the engine and empty runner without success, does anyone know advice?