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Thread: Change the transmission and differential fluids

  1. #1
    Join Date
    Nov 2016
    Location
    Baltimore, MD
    Posts
    28
    My Cars
    2011 BMW E92

    Change the transmission and differential fluids

    I'm asking for opinions about the need to change the transmission and differential fluids on a low mileage (22,000) 2011 335ix (E92) that is running fine, i.e. no problems. I can afford the work, but don't want to waste money.

    Yes, be safe. The car is seven years old.

    No, pouring money down the drain. Follow BMW change advice and wait (60K).

  2. #2
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    54,654
    My Cars
    11/88 E32 750iL+98 E36M3
    ZF says: Depending on driving style (e.g. sporty driving or lots of high-speed drives), ZF Aftermarket therefore recommends a transmission oil change every 40,000 km or after 2 years at the latest.
    https://aftermarket.zf.com/cn/en/aft...on-oil-change/
    Shogun tricks and tips for the E32 series are HERE!

  3. #3
    Join Date
    Jun 2018
    Location
    Las Vegas, NV
    Posts
    38
    My Cars
    2015 BMW 228i coupe
    BMW recommends once a year. That’s the time length for my 228i sport.


    Sent from my iPad using Tapatalk

  4. #4
    Join Date
    Jul 2011
    Location
    Arlington, VA
    Posts
    9,933
    My Cars
    2018 BMW M240i
    Don’t forget the transfer case fluid. Also, the power steering fluid needs to be changed.

  5. #5
    Join Date
    Dec 2013
    Location
    Chicagoland area
    Posts
    4,372
    My Cars
    EXOTICS
    Once a year for a DD is excessive for any of the fluids mentioned.
    Track or Auto-X then the ZF schedule.
    For a DD I schedule fluid changes mentioned at about 20k~30kmi. or 3~5yrs.,
    not wasteful, but not neglectful, and remember this is with top-quality fluids only.

  6. #6
    Join Date
    Nov 2016
    Location
    Baltimore, MD
    Posts
    28
    My Cars
    2011 BMW E92
    Regarding my post of 8/3 (Fri), I no longer need an opinion re frequency of fluid changes.

    On the morning of 8/8 (Wed), my Son called me frantically. "My house is on fire; get over there right away." The fifteen minute trip took ten minutes. As I turned into his street, five fire engines greeted me. In my haste, I ran over one of the fire hose couplings.

    The good news - just a little smoke damage to the house caused by cleaning rags in a trash can. The bad news - I ripped open my automatic transmission pan. Fortunately, I stopped immediately and caused no internal damage. $1,647 for a new pan.

    Let the roast begin. I deserve it.
    Last edited by Justin48; 08-10-2018 at 06:06 PM.

  7. #7
    Join Date
    Dec 2015
    Location
    phoenix
    Posts
    30
    My Cars
    1977 bmw 320i
    I once ended up in a neighborhood where a fire had started about 15 min before my arrival. I attempted to get out and a fire engine pulled behind me leaving no exit except over the fire hoses. I drove and did not see one of the hoses and a cop yelled at me then told me not to move my car until they were done. So there I was straddling a fire hose for a good two hours.

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