Quote:
Originally Posted by stiubhartach
“N62s have problems with the valve seals.”
While this is true, it’s not as common as reported. Many of the valve seal problems with smoking are actually malfunctioning CCV systems sucking oil into the intake manifold. I’ve had no problems with my valve seals on my 2005 N62 @170k miles, but I’ve had three bouts of smoking that were all fixed by repairing the CCV system. (Note: changing valve stem seals isn’t that hard).
The only issue I’ve had with the N62 is leaking O ring in the coolant pipe under the intake manifold. Used a stent to fix it.
|
Unfortunately this is false. The N62 has easy to service vent valves and it will be very obvious when there is an issue with them. Usually service engine soon with mixture faults or checksum faults.
The majority of oil burning issues are the valve stem seals with few reporting issues with worn out valve guides as they are almost never checked properly.
The cylinder heads need to be removed to check the valve guides with new valves to check the amount of valve tilt.
Even fewer owners are reporting issues as the N62 X5 vehicles are usually no longer in service or retired from road use.