Re: 318 Strange Vibration in Reverse and 1st Gear

["ra rabmw" <rabmw@xxxxxxxxxxx>]

       Mike...check the guibo behind the trans,and the center support 
bearing on driveshaft.The first may be cracked(can't always be seen unless 
removed and inspected),and the second may be tired or have a tear,etc.As 
they start to go bad,either/both of these often show erratic symtoms.So does 
a slightly out-of- balance driveshaft these problems cause.If so,it will get 
worse.           "RA"

>From: "Mike Theuri" <mikesoft@domain.elided>
>To: "BMW" <bmw-digest@domain.elided>
>Subject: 318 Strange Vibration in Reverse and 1st Gear
>Date: Thu, 27 Apr 2000 21:43:28 -0500
>
>I have a 93 318i 130K. I recently changed the rear diff oil with
>Lubromoly gear oil 75W and the transmission fluid which my
>mech discovered to be ATF fluid with Redline ATF for manual
>transmissions.
>
>The problem I am experiencing seems to be coming from the
>front when the car is stationery and 1st or Reverse gear is
>engaged. It does not happen all the time, the clutch is in good
>condition, no slipping and that is also my mech's opinion last
>time I checked with him.
>
>When 1st or R is engaged, ( and this happens rarely,  just until
>the last two days did it occur twice for two days in a row). The
>car even with the clutch well balanced feels as though it were
>starting off in 3rd gear from a stationary position. Once the car
>moves, it goes away and it might not happen even at the next
>stationary stop.  Another stationary stop and the car acts normally
>when taking off.
>
>I had a friend listen as I reversed and I did the same as I slowly
>reversed when the problem happened this evening. The sound,
>sounds like a  clicking sound not exactly but like a deteriorating CV
>joint might  sound in a FWD or a AWD. We managed to isolate the sound
>source to be coming from under the car to the right passenger
>side at the front somewhere under the engine bay but we could
>not exactly pin point the problem.
>
>All the gears shift easily, no problems at all. Just this one problem
>which sounds like a bearing or something of the sort. Does anyone
>know what this could be ? I thought about the dreaded U-Joint but the
>car does not vibrate while driving. I have a lowered suspension with
>18" wheels but I doubt if this has anything to do with it especially since
>the clearance is good enough to avoid hitting bumps.
>
>If anyone has any ideas or suggestions as to what is causing this, I
>will very much appreciate this information. Thanks
>
>Mike Theuri
>93 318i
>
>
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