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  1. Brakes FAQ 
    #1
    DSK
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    Many questions come up regularly regarding brakes and related issues. I came across the following information contained within a traders magazine, so have typed it out below as it may be relevant to you and also fellow members.

    Excessive Temperature & Rapid Wear
    Fault;
    Friction material overheating and disc surface thermal cracks (blueing)
    Causes;
    Sticking brake calipers (sliders/piston seals), Axle/Wheel imbalance, Excessive prolonged braking (drag)

    Friction Material Fractures
    Fault;
    Friction material cracks/fractures
    Causes;
    Pad restriction within caliper housing (flexing of pad/backplate(s)), impact damage during installation

    New Pads Fitted On Worn Discs
    Fault;
    Rapid wear, noise and judder
    Causes;
    Excessively worn/grooved brake disc surface

    Brake Disc Contamination
    Fault;
    Low brake efficiency
    Causes;
    Contaminated disc surfaces, (oils, solvents, cleaners)

    Uneven Pad Wear
    Faults;
    Uneven pad wear
    Causes;
    Poor alignment of brake caliper, poor alignment of brake disc/hub
    Fault;
    Uneven pad wear between 'inboard and outboard' pads
    Causes;
    Sticking brake caliper (insufficient lubrictaion of caliper sliders), worn/damaged piston seals

    Brake Noise & Judder
    Faults;
    Brake noise and judder
    Causes;
    Dirty wheel hub

    Brake Noise
    Faults;
    Brake noise
    Causes;
    Pads are tight in caliper (see scratch mark evidence on pad backplate edges). Uneven pad/disc contact, worn/grooved brake discs, excessively corroded brake discs.

    Recommended Maximum Disc Run-Out
    Good Practice;
    Always remember to check disc run-out before fitting new brake pads. (Maximum disc run-out on vehicle 01.5mm)
    Problems;
    Excessive run-out will cause noise, judder, uneven pad wear and poor brake efficiency.

    Brake Disc Damage
    Faults;
    Thermal Cracks (Blueing)
    Causes;
    Rapid pad wear, brake judder, vehicle vibration and brake noise.

    Brake Disc Failure
    Faults;
    Top Hat detachment
    Causes;
    Overtightening of wheel nuts (careful use of air pressure guns is required)

    Friction Material Detachements
    Faults;
    Friction material detachment
    Causes;
    Impact damage during pad removal/installation and/or excessive corrosion.
    Let the fun times roll .....

    BMW 328i Coupe - Boge M-Tech Shocks, Boge Turbo Lowering Spring Kit (30/20mm), ATE Power Discs
    Volvo C70 T5 GT
    UK Spec Toyota Supra 3.0ltr Twin Turbo Automatic
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    Tyre Guide & FAQ http://www.bimmerforums.co.uk/forum/...re-faqs-t1569/

    BFUK weekday crew
     
     

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  4.  
    #2
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    Ronnie's Car Details
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    See above
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    Never too old, never too new
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    Always manual
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    Usually 5 doors
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    Cheers DSK
     
     

  5.  
    #3
    Bimmer Fan
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    shep345's Car Details
    Model of Car:
    318ti compact
    Year of Manufacture:
    2001
    Transmission Type:
    manual
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    estate

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    can i fit e46 m3 brakes on my e46 318ti?
     
     

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    #4
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    Chunkryan's Car Details
    Model of Car:
    520 d e60
    Year of Manufacture:
    2007
    Transmission Type:
    Automatic
    Car Body Type:
    Saloon

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    Want to know if I can fit brakes off a 55 plate 535 on to my 520 d if any one can help much appreciated :+1:?:+1:?:+1:?:+1:?:+1:?
     
     

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