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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 11-13-2012, 01:43 PM
starters a pita starters a pita is offline
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need help!!! rear end vibration with a whop sound any ideas?

the car in question is a 1998 328i auto with 110,000 miles. The vibration is coming from the rear end and makes a whop whop whop sound it whops faster as i speed up and never stops . it sounds like a out of balance tire but i ruled that out after having my rear tires re balanced yesterday... any ideas on what it might be? or any links that would help me?

thanks
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  #2  
Old 11-13-2012, 02:21 PM
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Bimmer1995318ti Bimmer1995318ti is offline
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Immediately check your lug nuts make sure they're not loose
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  #3  
Old 11-13-2012, 02:48 PM
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ZeGerman ZeGerman is offline
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Definitely make sure your lugs are tight, but I'm putting my money on a failed rear wheel bearing. Pretty classic symptoms you are describing.
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  #4  
Old 11-13-2012, 03:15 PM
starters a pita starters a pita is offline
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i just swapped the back tires to the front with no avail. lug nuts are tight....

i really do hope its just the wheel bearings, what do i have to do check them? take the rotters of for a visual inspection/any play within the bearing? i did the tire wobble test usually when the bearings go the tire wobbles a little bit and its not wobbling.....

the thing is that it doesn't feel and sound like its coming from one specific side
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  #5  
Old 11-13-2012, 03:35 PM
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ZeGerman ZeGerman is offline
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Quote:
Originally Posted by starters a pita View Post
i really do hope its just the wheel bearings.....
Be careful what you wish for. Replacing rear wheel bearings is a bear of a job, unlike the fronts which are easy to replace.

When I had a failed wheel bearing, it sounded like a worn tire, but I couldn't find any "play" in the wheel itself, nor did I notice any significant change in the loudness under corning load. Nevertheless, I had it replaced and it was definitely the problem. The roar went away. If your brakes aren't rubbing and it does not sound like it's the differential grinding, the chances that it's your wheel bearing are very, very high.
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  #6  
Old 11-13-2012, 05:13 PM
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A bear of a job and will run you ~$300-350 per side in labour to have a shop do.
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  #7  
Old 11-13-2012, 08:46 PM
starters a pita starters a pita is offline
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Originally Posted by jonesin View Post
A bear of a job and will run you ~$300-350 per side in labour to have a shop do.
holy crap just researched the rear bearings a bit fml i miss my 92 vw gti
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  #8  
Old 11-13-2012, 09:39 PM
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not sure if this will work on a 98 just yet but worth sharing, to the ones who like to get there hands dirty and dislike giving there money to a mechanic
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  #9  
Old 11-14-2012, 05:05 AM
SCJon SCJon is offline
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Was that $350 total for both bearings or just one? After watching that video I feel inclined to let a mechanic do it!
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  #10  
Old 11-14-2012, 05:46 AM
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$350 for one side.
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  #11  
Old 11-14-2012, 07:11 AM
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And that video just shows you how to do it if everything goes perfectly.

When they don't go perfectly, like a bearing is seized into the hub, you NEED a hydraulic press to remove it.
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  #12  
Old 11-14-2012, 08:37 AM
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Good luck sir I had a similar outlook when mine went...you can drive on it for a *short* while to save some cash

Mine was noticeably wobbling while driving at the time I changed them
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  #13  
Old 11-14-2012, 11:38 AM
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...
it whops faster as i speed up
...

Favorite quote of the day.
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