Hello, I’m new here and don’t know me so well. My name is Manfred and my car is a BMW F13 640d BJ2017 with 118.000KM mileage. I had a feedback action yesterday at the BMW dealer because of the airbag and AGR cooler. This was found in the error memory the BMW number 12230035934 and the BMW number 12217822100 incandescent control unit allegedly no longer work properly. So I personally have no starting difficulties up to this error memory Ausle Also no black smoke development noticed…. But I will not be unskillful to exchange these parts myself for safety reasons even though I don’t drive with this beautiful car anyway in winter. Maybe who. why you have to exchange the light control unit with and from which brand comes the original BMW part. Tap once Bosch, Hella or Beru are probably one of the original equipment suppliers… probably also from the glow plugs???? Who knows that please tell me! Moc hte buy this in replica! Thank you very much LG Manfred