Engine Problems of BMW X5

2003 BMW X5 ccv "oil separator valve" has issues in cold weather and is known to fail. The problem relates to a non proper design where the valve can freeze. The engine block can then blow oil and cause fire. Before it blows the block the engine will have "hard starts" which will push frozen oil through the separator. If the ccv fails it will completely blow your engine gaskets. This is a known issue and their is a BMW X5 service bulletin that this should be looked at. BMW will not address the issue until it blows. It is a major malfunction that is not only expensive to fix well over the 3000 but very dangerous. I think an investigation into the BMW problem should be looked closely.

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The failure: the car will not at times reverse. When in reverse mode the car remains as if in neutral. I've taken the car to the shop a few times, after awhile the issue magically repairs itself. I've been told the transmission will need to be replaced or will need to be repaired.

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This past week connecticut hit a very cold spell. 0*f. Crank case vent valve froze. As a result, tremendous pressure built inside the crank case, the oil cap blew off and the engine stopped working properly. Have been told by the dealer that they have seen this problem before in the 2003 model year and that it is not an uncommon problem in very cold weather. We have also learnt the 2003 model has a design flaw where the valve is not insulated and newer models have changed the design to correct the problem. Part replaced by dealer. We were lucky our engine did not fail completely. Since this problem is known by BMW, and is a clear design defect. Shouldn't it be the subject of a recall?.

I have had several problems with my vehicle including failure of suspension system but of concern is when about 2 years ago I was making a u turn at a traffic light, completed the u turn and my engine died. Car came to a stop. I turned off the key and restarted the ignition and engine turned on again. This has never happened again but I am concerned that it might in light of recent articles that BMW has been having similar problem with newer cars.

: the contact stated the transmission would not downshift properly. The vehicle was taken to the dealership and the transmission was replaced, but the problem persisted. Also, the engine revved while at a stop. The dealership was unable to determine a problem. The vehicle was a 2006 BMW X5. Updated 01/10/07.

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Model X5 rpm's increased rapidly with no pressure on the accelerator.