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Thread: Electronic Park Brake keeps failing

  1. 15th June 2013, 03:20 PM #31
    adventure
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    The D4 EPB has a different part number to the D3. It seems it was redesigned to address its predecessors shortcomings.

    After the last total failure of the EPB my mechanic advised me not to use the auto release feature. At the 9,000km mark the unit still failed. Conclusion - the auto release is not the root problem.

    N
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  2. 22nd August 2013, 04:15 PM #32
    Duck's Guts's Avatar
    Duck's Guts
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    My D4's EPB failed in early July at the start of my Cape York adventure. 83K kms on the clock. 2.5 weeks later and back in Cairns, an independant Landy Specialist examined the EPB and said it's failure was due to three reasons:
    1. park brake pads worn and likely not adjusted at the 12K services that I have done
    2. dust and sand and mud accumulation
    3. inadequate engineering design - no self adjustment
    He also stated that it is one of the most common D3/4 component failures.
    Followed by suspension air compressors and starter motors.
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  3. 23rd August 2013, 01:58 PM #33
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    rocmic
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    I had the first squeal on my D3 after going offroad. Lasted for quite a while; then at 70,000 it stuck on (more than once) and the actuator was replaced under extended warranty.
    I now make sure that the EPB is checked and adjusted at each service. Last service (132,000 km) there was some wear on the pads but not enough to worry about.
    Definitely do not use the auto release function (on purpose), the actuator is a rather flimsy plastic mechanism and the auto release obviously puts some strain on it before it actually releases - you can feel it when you accidentally forget to release manually before driving off.
    Cheers
    Mike
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  4. 24th August 2013, 11:44 AM #34
    vbrab
    vbrab is offline Master Supporter
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    Angry Upgraded D4 park brake unit

    Had the park brake unit fail on D3 (never use it), so had "upgraded" D4 version fitted in May 2013, never used it (too scared in case it failed).
    Vehicle only drove on bitumen after fitting, nil water crossings.
    In July, while jacking vehicle up, the unit came on by itself (??) , made VERY loud screaming noise and refused to go off. (Used emergency cable).
    Called workshop who advised "seem to have a bad batch, as other failures of D4 unit reported".
    Much speculation that prime cause of failure is water or dust, seems pretty poor for a company that claims to be at forefront of 4WD tech.
    How hard can it be to make a sealed dust/water proof unit.....that actually is reliable?
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