1. 22 Aug 2018 at 4:02 PM #1
    Craigyt

    Craigyt A mere Chipper

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    Hi guys,

    Been on here a while but only really to buy parts for the E36. Well now the daily driver is causing some problems. Its an E91 335d.

    The rear o/s brake is binding. The caliper has been replaced, the brake flexis have been replaced and there is new discs and 2k miles old pads on there.

    What else could it be? Its doing my head in.

    Please help before i burn the thing!

    Cheers
    Craig
     
  2. 23 Aug 2018 at 1:26 PM #2
    Raif

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    Is definitely the caliper brake (can you feel the disc hot compared to N/S after a drive?)

    It could be the brake shoes inside the disc. How many clicks on the handbrake? Might be worth adjusting them in a notch (flick the adjuster upwards on the OS to loosen iirc)
     
  3. 23 Aug 2018 at 4:32 PM #3
    Craigyt

    Craigyt A mere Chipper

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    I will give it a go, but the wheel is free with the handbrake off.

    The handbrake comes up about 4 clicks. Could it be a case of the dtc braking the older tyre as i had a sidewall failure and put a new tyre on the one side only? Or isnt it that sophisticated?
     
  4. 23 Aug 2018 at 5:19 PM #4
    kevM3

    kevM3 Achieved official socks

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    Got exactly the same prob on my 123d, unseized the o/s rear caliper yesterday and also again back in march! Getting really hot and making grumbling noises at motorway speeds
     
  5. 24 Aug 2018 at 9:23 PM #5
    Craigyt

    Craigyt A mere Chipper

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    Right, the centre of the disk is cold where the handbrake holds so dont think its the handbrake, drove it with dtc disabled and the disk was only slightly warmer than the opposite side, could it be a missmatch of tyres?
     
  6. 25 Aug 2018 at 7:36 PM #6
    Craigyt

    Craigyt A mere Chipper

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    So another little twist to the story, i had a feeling that both rear tyres were knackerd, both inner sidewalls collapsed possibly from running 35psi instead of around 40psi, so had a pair fitted, low and behold both ruined!

    With the new tyres fitted both rear brakes are running at around the same temperature now but are hotter than the fronts.

    Could this be because i have vogtland springs on the front but not on the rear? Throwing the load sensing valve all over the shop?
     
  7. 26 Aug 2018 at 8:47 PM #7
    kevM3

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    my caliper was physically seized, i free'd it up with release oil and seems fine
     
  8. 5 Sep 2018 at 7:35 PM #8
    Craigyt

    Craigyt A mere Chipper

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    So, think i finally got to the end of the problem. I ended up replacing both rear wheel bearings.

    One had very slight play in it but the o/s felt fine. When i removed them the magnets wer all warped so stuck a set of FAG bearings in and its running sound so far, touch wood!
     

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