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E34 (1989 - 1995)

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  #1  
Old 11-07-2012, 02:35 PM
budshaw budshaw is offline
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Location: Roanoke VA
 
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Mein Auto: 1995 525iT
occasional shudder felt underneath

To all:

I have a '95 525iT E34, M50 with 135K miles on it. 3 or 4 months ago I noticed a slight stutter or shudder coming from under the car near where the drive shaft connects to the engine.(I think) It happens mostly when starting out when the torque is greater but I noticed today that it will also vibrate in neutral when I give it moderate throttle. I thought transmission filter at first but now am thinking u joints. (Not sure of the terminology but I'm referring to the the connector between the motor and drive shaft)
Does this sound familiar to anyone out there and if so what do you recommend?

Thanks in advance to all you afficianados out there. Peace

Bud Shaw
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  #2  
Old 11-07-2012, 03:31 PM
Josh429er Josh429er is offline
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Mein Auto: 1989 BMW 535i
Well yes it could be u joints, but there are many other parts between the driveshaft. First off is it manual?

Also be as detail oriented as possible. Does it happen when the cars warm, or cold, or both. Does happen when you turn left or right. Low and high speed. What does it do in reverse.

Every bit will only help us help you.
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Last edited by Josh429er; 11-07-2012 at 03:34 PM.
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  #3  
Old 11-07-2012, 03:38 PM
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BMR_LVR BMR_LVR is offline
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Location: Asheboro, NC
 
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Mein Auto: 1992 525i
Also, if it does it in neutral when stationary and revving the engine (couldn't quite tell from your OP), you can rule out the drivetrain. If that is the case, look at motor and transmission mounts.

If no problem when stationary and in neutral, then look at the drivetrain. You have to inspect the entire drivetrain. Take a close look at the flex disc where the transmission connects to the drive shaft.

Good luck.
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Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #4  
Old 11-07-2012, 03:44 PM
robertobaggio20 robertobaggio20 is offline
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Please do an undercarriage inspection on the mounts, ideally with a professional, and also check for rust, leaks and suspension bushing damage along the way.
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  #5  
Old 11-07-2012, 05:36 PM
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supertech777 supertech777 is offline
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Location: springfield , missouri
 
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Mein Auto: 1995 525i
could be a bad " GUIBO "
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  #6  
Old 11-07-2012, 05:43 PM
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BMR_LVR BMR_LVR is offline
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Location: Asheboro, NC
 
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Mein Auto: 1992 525i
Quote:
Originally Posted by supertech777 View Post
could be a bad " GUIBO "
Also known as flex disc (cough, cough )
__________________
Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #7  
Old 11-07-2012, 07:39 PM
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supertech777 supertech777 is offline
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Location: springfield , missouri
 
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Mein Auto: 1995 525i
Quote:
Originally Posted by BMR_LVR View Post
Also known as flex disc (cough, cough )
yeah your right sorry steve !
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  #8  
Old 11-09-2012, 10:56 AM
budshaw budshaw is offline
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Location: Roanoke VA
 
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Mein Auto: 1995 525iT
More info here

Sorry bout lack of details. Yes it is an automatic (as are all Touring models) and It doesn't seem to matter whether it's warm or cold. It will vibrate at start up and going down the road if I gas it. And it does shudder (although not as badly) when in neutral, not moving, and moderately revving the engine. You're right, it shouldn't be the drivetrain if this is the case. How difficult to change out a motor or tranny mount?
Thx.
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  #9  
Old 11-09-2012, 07:52 PM
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BMR_LVR BMR_LVR is offline
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Location: Asheboro, NC
 
Join Date: Dec 2008
Posts: 5,264
Mein Auto: 1992 525i
Quote:
Originally Posted by budshaw View Post
Sorry bout lack of details. Yes it is an automatic (as are all Touring models) and It doesn't seem to matter whether it's warm or cold. It will vibrate at start up and going down the road if I gas it. And it does shudder (although not as badly) when in neutral, not moving, and moderately revving the engine. You're right, it shouldn't be the drivetrain if this is the case. How difficult to change out a motor or tranny mount?
Thx.
It's not too difficult, just time consuming. I recently replaced both engine and transmission mounts. Here is a DIY on the engine mounts:

http://www.bmwe34.net/E34main/Mainte...ine/Mounts.htm

The transmission mounts are a lot easier. You can see how to do them easliy enough.

Hope this helps. Good luck.
__________________
Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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