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Old 12-17-2013, 10:54 AM   #2
mikewrfc
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Join Date: Feb 2009
Location: kentucky
Posts: 5
My Ride: 325i Wagon
Found this on another forum, something else to look at



the "cattle grid" vibration is primarily slippage in the lock-up clutch, which may be caused by common faults in one of the sets of control valves in the 'box, which can be changed for only a couple of hundred pounds (only one set of valves needs attention, so the whole valve block doesn't need to be changed at huge cost). In many cases, apparently, this resolves the lock-up clutch and vibration issue, since the replaced valves then control the clutch mechanism properly. So, J Dain advise that I have those valves changed
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