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Thread: Brake bleeding and pad material

  1. #21
    Senior Member mitsumi's Avatar
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    Question: is it really important to bleed after changing break pads for our mirage? its because im gonna change my pads for the front but someone told me that i still need to let it bleed after changing the pads. is it really necessary?

    sorry for the ignorance, bec. im still learning for the past 2 years since this is my first car.


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    Senior Member Top_Fuel's Avatar
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    Quote Originally Posted by mitsumi View Post
    Question: is it really important to bleed after changing break pads for our mirage?
    Bleeding is only required during brake service if you open up a brake line for some reason (replacing a caliper on the front or a wheel cylinder on the rear). If you're just changing front pads or rear shoes, you don't need to bleed anything.

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    Daox (01-12-2018),mitsumi (01-12-2018)

  4. #23
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    Quote Originally Posted by mitsumi View Post
    Question: im gonna change my pads for the front

    sorry for the ignorance, bec. im still learning for the past 2 years since this is my first car.
    Make sure you only remove one caliper at a time. If you have them both removed and push one of the pistons in, you'll likely push the one on the opposite side out. Then you're hooped. These calipers are so small you can push the piston back by hand.

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    What about replacing the brake fluid? I wonder if there's a service interval for this.

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        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.7 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.7 mpg (Imp)


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    Don't forget to pump the brake pedal until firm resistance is encountered when you're done with the manual labor. It's an easy mistake to hop in and drive off without setting the pistons and whoops! if you need to stop suddenly.
    Zero, my 2014 ES Plus gone but not forgotten. We're driving the Beetle of the 21st century

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        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


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    Quote Originally Posted by Eggman View Post
    What about replacing the brake fluid? I wonder if there's a service interval for this.
    Warranty and service manual will answer that.
    Zero, my 2014 ES Plus gone but not forgotten. We're driving the Beetle of the 21st century

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        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


  10. #27
    Moderator Eggman's Avatar
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    Quote Originally Posted by Wallythacker View Post
    Warranty and service manual will answer that.
    Good point Wallythacker. I have checked the warranty manual and it only says to check brake fluid every 45,000 miles with no mention of replacement.

    I ask this question because it is my understanding that brake fluid tends to absorb water and over time can somehow diminish. I was hoping an experienced mechanic can chime in with their advice.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.7 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.7 mpg (Imp)


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    Quote Originally Posted by Eggman View Post
    Good point Wallythacker. I have checked the warranty manual and it only says to check brake fluid every 45,000 miles with no mention of replacement.

    I ask this question because it is my understanding that brake fluid tends to absorb water and over time can somehow diminish. I was hoping an experienced mechanic can chime in with their advice.
    It does. All organics DOT3/4 will absorb minute amounts of water over time. I don't think the silicone based DOT 5 are hydroscopic. I think we have DOT4 in our cars.

    Generally 3 years or so was a recommended interval for a brake purge and flush.
    Zero, my 2014 ES Plus gone but not forgotten. We're driving the Beetle of the 21st century

        __________________________________________

        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


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  13. #29
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    Quote Originally Posted by Wallythacker View Post
    Don't forget to pump the brake pedal until firm resistance is encountered when you're done with the manual labor. It's an easy mistake to hop in and drive off without setting the pistons and whoops! if you need to stop suddenly.
    I once watched a guy back into the shop door after replacing his pads. It was pretty funny, thankfully nobody was standing behind him.

    I checked the manual for our Nissan nv200's, it states "for vehicles operated in Canada, both standard and severe maintenance items should be performed at every interval". They call for brake fluid replacement every 10000miles/16000kms or every year under the severe schedule. I think that's a bit extreme


    Last edited by Fummins; 01-16-2018 at 06:55 PM.

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