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Thread: Gen4: check your brake calipers. Leakage. Danger.

  1. #1
    Standard Member ampj8's Avatar
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    Gen4: check your brake calipers. Leakage. Danger.

    In the German forum one member who took his bike for oil cooler replacement said he got notified y BMW about a fix needed on his brake calipers as there was risk of leaks of fluid.

    Many others went to check and effectively they found wet calipers! At least 4 more found and posted pictures.

    I went to check mine and unfortunately also have the problem. Much more on the left than on the right.
    Me so naive smelled a bit of burnt oil and thought it was the recently replaced oil cooler, could not be so wrong!

    Now thinking on posting this in social media like instagram and quote all bmw hashtags just to get attention from bmw.

    For me this is dangerous. Apparently affects bike not moving much (you can imagine)! Never had such an issue with other bikes all brands and new as my RR with less than 1000 km!

    Welcome your opinions and findings.







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  2. #2
    1 YEAR PREMIER MEMBER bananaman's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    Oh dear BMW .....
    Speed doesnt kill, its how fast you stop.......

  3. #3
    2 YEAR PREMIER MEMBER r25sti's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    there was a vid on youtube where the guy took his in for the run in service and cooler but they had to keep it in as they found leaking brakes.

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  5. #4
    Forum Admin soofsayer's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    This is really not good. I need to check mine. What is the common issue/failure?

  6. #5
    Forum Moderator alex's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    Got to be a seal issue.
    It's a bit depressing that a bike which took so long to develop has so many teething issues.

  7. #6
    Standard Member ampj8's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    Quote Originally Posted by alex View Post
    Got to be a seal issue.
    It's a bit depressing that a bike which took so long to develop has so many teething issues.
    Yes.
    It has had some so far, compared to other bikes.
    Yet these have been very painful and time consuming issues that I’ve never had after almost 8 new bikes in the last 10 years or so.

    I don’t know if BMW has a number for this issue.

    Worst is that on one braking you might experience delay braking why? Well beyond disks might be all wet with fluid!

    Again it is dangerous. Damn it how can I trust this again?


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  8. #7
    2 YEAR PREMIER MEMBER r25sti's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    so this thread answers the are they as good as Brembo question.

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  10. #8
    2 YEAR PREMIER MEMBER DCB's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    Am sure if it’s an issue they will fix it

  11. #9
    Forum Moderator alex's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    Absolutely. No one should doubt that

    - Alex

  12. #10
    LIFETIME FORUM MEMBER stuartb's Avatar
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    Re: Gen4: check your brake calipers. Leakage. Danger.

    Thats nuts. !

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