Dear/ BMW Greetings I bought anew BMW 7 serial model 2007 from Riyadh, within the first three years I have noticed unformal sound in engine, I urgently toke the car to the egency where they found that the oil becam greasy, that happened because in the indication in car shows the the oil have be changed after 35000 km, the cylinders have been effected, and my car kept in egency for 47 days waitting for spare part, within this time they refused to gave me a replacement car for this period, I was following with them in dialy basi... read full review »