Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-15-2000, 01:19 PM
DanB
Guest
 
Posts: n/a
87 300E with 131K. At 60mph and up, there is a resonant vibration that I can feel and hear even though its subtle. As speed increases, so does the frequency of the vibration/noise, although not much; i.e. at 80 mph it's a little more frequent than at 60mph. I've talked to two other 300E owners in my area and they have a similar problem, with varying degrees of intensity. Mine is rythmic and I can hear it more than feel it, although it's gotten stronger in the past two weeks. Any diagnostic suggestions would be greatly appreciated.
Reply With Quote
  #2  
Old 04-15-2000, 01:44 PM
Registered User
 
Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
It's probably tires and/or balance. If you get a resonant vibration that changes with rotational speed, then it's most likely a rotating object out of balance. Just replaced the front tires on my '89 300E and the vibration went with the old tires. May not need alignment unless there is abnormally distributed wear across the tread surface.

------------------
Jeff L
1987 300e
1989 300e
1987 BMW 325
Reply With Quote
  #3  
Old 04-15-2000, 08:24 PM
DanB
Guest
 
Posts: n/a
I didn't think it was tires because my experience in the past has been that tires cause a constant vibration at a certain speed, rather than a rythmic one that's on, then off, then on and off, all at the same speed. What do you think?
Reply With Quote
  #4  
Old 04-16-2000, 10:39 PM
Registered User
 
Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
The 124 is not known for this. The tires will cause this in many cases. I only use the Michelin MXV4 on these when possible.

------------------
Benzmac:
Donnie Drummonds
1992 500E (very soon I hope
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM
Reply With Quote
  #5  
Old 04-17-2000, 10:36 AM
Registered User
 
Join Date: May 1999
Location: DOYLESTOWN ,PA, /BROOKLYN,NY
Posts: 205
Same thing is happening on my 300CE.
Will rebalancing the weels help?
I think there is stil enough rubber for at least 10k, so I don't want to replace it just yet.
Thanks

Dmitry
Reply With Quote
  #6  
Old 04-17-2000, 01:21 PM
Registered User
 
Join Date: Feb 2000
Location: Rancho PV, CA, USA
Posts: 328
Check the flex disc, it's usually the front that gives the most problem, but check them both. The original ones were good for 50k, the newer ones will last 75-100k.
Reply With Quote
  #7  
Old 04-17-2000, 01:57 PM
Registered User
 
Join Date: Nov 1999
Location: Santa Cruz, CA USA
Posts: 117
About the tires,
I had the same problem with my 86 300e. I had new tires put on, and the car ran fine. Then after about 1/2 hour of driving, the vibration started again. I took it back, and they re-balanced the tires. This time, they lasted about 2 days. Then, way out of wack again. The problem was that the clip on weights were flying off at speed! I'm not that crazy of a driver, I guess the Mercedes rims don't like those clip on weights. I told the guys at the Good Year place to get it right! Then they used these stick on ones that go on the inside. No more problems! The vibrations only happened at highway speeds. Around town, vibrations weren't noticeable.
Hope this helps

------------------
Kyle De Priest
1986 300e
1972 BMW R75/5 (Best there is)
Reply With Quote
  #8  
Old 04-17-2000, 05:03 PM
Registered User
 
Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
About the flex disc. if that's shot the vibration gets increasingly worse as speed increases. On the other hand, an out of balance tire may have 3 or 4 resonance points (depending on speed) when the vibration will be more pronounced. (Compliments of my local friendly Michelin dealer)

------------------
Jeff L
1987 300e
1989 300e
1987 BMW 325

[This message has been edited by jeffsr (edited 04-17-2000).]
Reply With Quote
  #9  
Old 04-18-2000, 11:38 AM
DanB
Guest
 
Posts: n/a
Thanks for the help. Sorry to be so ignorant, but what is a flex disc?
Reply With Quote
  #10  
Old 04-18-2000, 12:10 PM
LarryBible
Guest
 
Posts: n/a
DanB,

The flexdisc is a flat, round piece of strong rubber at each end of the driveshaft. It serves to transfer the torque through the driveshaft while arresting any harsh impact.

I have had tires do all sorts of things to my 124 car. You can look at the flexdiscs and see if there is any cracking. But I would cast a very suspicious eye on your tires.

Good luck,


------------------
Larry Bible
'84 Euro 240D, 516K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
300E/M103 high freq. vibration anthonyb Tech Help 3 08-17-2003 02:45 PM
Engine vibration in gear/aircleaner vibration at idle? rwthomas1 Diesel Discussion 10 01-16-2003 12:14 AM
Update - Steering Vibration better, need more input md21722 Tech Help 32 10-27-2002 02:14 PM
400E Vibration, What to do Next?? timreid Tech Help 9 10-03-2002 12:45 PM
vibration in 300E Ken Sabo Tech Help 3 09-09-1999 08:21 AM



All times are GMT -4. The time now is 09:14 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page