Servus together I’m new here in the forum and have the following problem. I bought a 650 for myself about 4 weeks ago yesterday I had the oil service and microfilter done at BMW. When I drove the car home and it was at temperature he suddenly started to stink and smoke blue. ADAC called me cylinder head gasket which could exclude the workshop of my trust by a Co2 test in the cooling water. something to do with the oil change since it started immediately after that never before.They also told me that they can not help me there and I should to BMW. Does someone have an idea what I could do the reperature at BMW I probably can not afford someone alternative ? Is there possibly a cheaper interim solution ? What happens if I continue driving could break even more ? Come from the area Heidelberg and I am very grateful for any help