+ Reply to Thread
Results 1 to 3 of 3
  1. #1
    Registered Member
    Richmond Hill, , Canada
    Member No: 180910 LPappo is an unknown quantity at this point LPappo's Avatar
    Join Date
    May 2010
    Rep Power

    Yes | No

    Vibration only when cool / empty tank

    Hello All,

    My '94 850ci has had a longstanding vibration at pretty much all speeds, which nobody has been able to pinpoint and is slowly driving me nuts. I had my driveshaft, motor and transmission mounts etc replaced over time. When the weather is warm (above 70 degrees) and the tank is full, it disappears - !! I'm guessing some rubber suspension parts have hardened over the years, but which ones? Does anyone have any ideas?
    Yours truly,
    Tortured in Toronto

  2. #2
    Registered Member
    , SC, United States
    Member No: 56726 lezonebay is an unknown quantity at this point lezonebay's Avatar
    Join Date
    Nov 2002
    Rep Power

    Yes | No

    my quess is rear suspension bushings

    all oem spherical bearing bushings are crap. their rubber boot disappears (turns into rubber dust) and then dirt goes into the ball joint area and slowly kills it. The newer ones are better, slightly.

    I would check the shocks, they do cause vibration and heat/load can affect them greatly. worn/cracked rear shock mount can also cause strange things.

    vibration can also be caused by exhaust/muffler but the gas tank suggest it must be related to suspension. The load changes with a empty/full tank.

    It could be a lot of things, unless somebody experienced this before
    it will be a hit or miss game.

    good luck and definitely write down here the solution/culprit so we can all learn from it.

    1997 BMW 840CiA
    1990 BMW Z1
    2002 Astro Van AWD
    2003 Nissan 350Z Enthusiast Package
    1987 BMW 535i with 5spd manual
    1992 BMW 735iL
    2007 Mazda CX9 AWD
    1998 Yamaha Blaster+Breeze

    1995 850CSI CD00177 (SOLD)

  3. #3
    Larry Pappo
    , ,
    Member No: Larry Pappo's Avatar

    Yes | No

    Re: my quess is rear suspension bushings

    Thanks, Laszlo - I'm having the car serviced shortly at Gault, and will make sure they check them. Mufflers are being replaced at the same time.

+ Reply to Thread

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)



Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
1e2 Forum