My X5 was blowing intermitent smoke. Independentent garage quotes $2500 Vent valve and oil pump. Went to BMW Dealer to see if factory issue. Week later dealer said I need a new engine $25, 000. $15, 000 for used engine! Warranty expired BMW Canada said I had no claim. Up until I towed the car to a qualified honest independent repair shop, Sales Team at dealer were still suggesting new engine. The engine is fine, strong compression problems. Always ask for a written quote and your parts from dealer service. This is your only evidence of a crime that probably occurs daily. read full review »