Three problems related to engine cooling system have been reported for the 2001 BMW X5. The most recently reported issues are listed below.
On cold day, '01 BMW X5 3. 0, started, briefly warmed and driven 8 miles b/f engine quits and will not restart. No warning lights, nor overheating involved. Mechanic indicates engine completely seized due to oil separator freezing from residual condensation in air as well as crankcase resulting in oil forced into cylinders, choking motor, and cracking connecting rods. Engine has now failed requiring a new or used motor - estimated at $7,500 replacement (not to mention significantly lowering resale value since new motor will not match VIN). Vehicle has been meticulously maintained beyond manufacturers recommended intervals (oil change every 3k miles with BMW spec'd oil and filters). This is a very common problem with BMW, particularly the X5 - oil separator in subsequent years was redesigned to address issue. No warning from dealership who maintained car until 2 years ago. This is a well documented problem that has now caused catastrophic engine failure and could very well cause catastrophic injury or death of vehicle occupants if engine fails on highway, rather than on a neighborhood road driving @ 5 mph. . BMW should have made a recall on this part before this issue started occurring with regular frequency to anyone living in a cold climate. Old parts and motor are still available - at least for the current time. Will need to be disposed as a core charge in near future once new engine can be located.
The contact owns a 2001 BMW X5. While driving between 55-60 mph, the vehicle began to overheat and smoke, and the engine failed. The vehicle had to be towed. The dealer stated that the VIN was not included in NHTSA campaign id numbers 01v206000 and 02v138000 (engine and engine cooling: cooling system:fan). The current and failure mileages were 87,000.
2001 and later BMW X5's have a known problem with the oil separator freezing in very cold weather, causing the engine to sieze suddenly. This is a majoir issue BMW needs to recall!!!.