Mechanic said that is the Drive Shaft, did not give me a price yet. Talked to other mechanic for a second opinion, he said that it is very expensive to replace the Drive Shaft, but I could get the oil check in it first, that may fix the problem. Advice please
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I have checked BMW schedule time for repair which is 2.25 hrs. This details
R+ R COMPRESSOR
DRAIN/REFILL AIR CONDITIONING
R + R FRONT ASSEMBLY PROTECTION
R + R DRIVE PULLEY ALTERNATOR .
Hope this helps.
GET IT TO A MECHANIC!! Something is loose or about to collapse! Remember that vibration and noise can travel away from the source so get the mechanic to start in that corner. You need to get the following checked!
-Prop shaft mountings at transfer box.
-Prop shaft mountings at differential.
-Prop shaft bearings.
-Differential condition and oil level.
-Drive shafts at differential end.
-Drive shafts at the wheel end.
-All flexing joints in the system including UV joints and CV joints.
It doesn't seem like it should have been all that bad with a 2004.Please tell me a couple things though.Are you in an extreme weather environment?Fairly hot summer,fairly cold winter,cars rusty within 5 years?Did he call it a drive shaft?If it is front wheel drive,it is more likely a CV axle,however,I am not familiar with the setup of 4 wheel drive vehicles.There may be different interpretations between the 2 countries but to me,a drive shaft connects the transmission to the rear axle.The axle is what the rear tires of a front wheel drive are held together by.A CV axle is what goes from the transmission to each of the front two tires,each tire having one CV axle and joint.I would get a second opinion.Good luck mate!
Look for something caught in the drive shaft - also check rear bearings and drive shaft bearings.
Sounds like you need to have a good oil change and have the mechanic give the underside a good going over. They will usually do this free as part of the oil change.
Also - check for a bad tire - sometimes the problem won't show sitting if the tire is separating on the inside and on the inside part of the tire. I suspect a faulty tire that isn't separating until you get to speed.
It might be a faulty power steering pump. Try checking the level of the power steering fluid. It is probably best you have your power steering system checked by a mechanic.
Does the noise occur only when the vehicle is moving?
Try moving the steering wheel from side to side, while stationary (but don't do it too often, or you might damage something). If the noise is still present when the car is stationary, then it probably is the power steering system.
If the noise only occurs while the vehicle is moving, it could be a problem with the differential/final drive, or even wheel bearings.
This noise is likely caused by swaybar end-link joints. Newer cars use solid rods with ball and socket joints, to connect the ends of the swaybar to the frame. These ball and socket joints at the end of these rods, create an amazingly noticeable and annoying noise in the car when you go over the slightest bump. There is no way to test these things unless you disconnect one end and check to see how tight the ball is in the socket just by wigging the with your hands. If they move around at all without pressure, they are no good. Go to ebay and search "bmw endlinks " for a picture.