Brake Failure Light | FerrariChat

Brake Failure Light

Discussion in 'Mondial' started by AUDIO RESEARCH, Nov 8, 2015.

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  1. AUDIO RESEARCH

    AUDIO RESEARCH Formula Junior

    Feb 11, 2009
    355
    PHILIPPINES
    Full Name:
    LUIGI RAYMUND LIRA
    Hi guys ,

    Took the Mondial for a long drive. I noticed the Brake Failure Light indicator turned on . There was no changed in the brake performance , pedal stiffness nor the gear changes nor stiffness of the clutch action. I checked the Brake fluid level & it was spot on . When I usually start the car in the morning the brake light turns on then after less than 30 seconds the brake failure light will turn off.

    Thanks in advance,

    Mondial
     
  2. Alden

    Alden F1 Rookie
    Rossa Subscribed

    Apr 25, 2010
    2,910
    Central Florida
    Just a WAG here without checking the manual: Front brake pad wear sensor?
    Alden
     
  3. stekkefun4

    stekkefun4 Formula 3
    BANNED

    Nov 22, 2006
    2,232
    Belgium - Europe
    Unplug all connectors to the main brake cylinder and spray those with WD40
     
  4. AUDIO RESEARCH

    AUDIO RESEARCH Formula Junior

    Feb 11, 2009
    355
    PHILIPPINES
    Full Name:
    LUIGI RAYMUND LIRA
    Alden , Stekkenfun 4 ,

    Thanks for the reply , that I will check and spray the electrical connections going to the brake master cylinder.

    audio research
     
  5. Alden

    Alden F1 Rookie
    Rossa Subscribed

    Apr 25, 2010
    2,910
    Central Florida
    Did you get any resolution to this problem?
    Alden
     
  6. dfranzen

    dfranzen Formula 3
    Owner

    Aug 31, 2013
    1,577
    Ponte Vedra Beach , FL
    Full Name:
    Don Franzen
    please do not use WD40 it will cause issues

    use an "electrical " contact cleaner

    thank you!
     
  7. Alden

    Alden F1 Rookie
    Rossa Subscribed

    Apr 25, 2010
    2,910
    Central Florida
    Thanks for the resolution reply all!
    Alden
     
  8. Alden

    Alden F1 Rookie
    Rossa Subscribed

    Apr 25, 2010
    2,910
    Central Florida
    #8 Alden, Dec 9, 2015
    Last edited by a moderator: Sep 7, 2017
    Fixed that for you.

    All these? 6 is more than I thought I would find, lol! And I may have missed one, Jeeze!
    Alden
    Image Unavailable, Please Login
     
  9. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,662
    San Carlos, CA
    Full Name:
    Mitchell Le
    Bleed first.
     
  10. AUDIO RESEARCH

    AUDIO RESEARCH Formula Junior

    Feb 11, 2009
    355
    PHILIPPINES
    Full Name:
    LUIGI RAYMUND LIRA
    None yet Alden.This brake failure light illumination happens when I brought the car to the paint shop , w/c was 2 hours away from my place. The car is getting a full respray. It won't be finish until late Dec or early Jan. I will give you guys an update once I solve the problem. By the way there is an Eletrical Contact Cleaner made by WD40. It's a very effective product for cleaning electrical connectors , etc.

    audio research
     
  11. Alden

    Alden F1 Rookie
    Rossa Subscribed

    Apr 25, 2010
    2,910
    Central Florida
    OK, I did this to all the connections I could find, 6, I think. See my pic in the post above.

    Turned off the main battery disconnect first, this is good advice when doing ANY work on the electrical system on any car.

    I also sealed the connections with dielectric grease. (Yea, I know, debate this in another thread, OK, it has worked for me for hundreds of years almost, lol!)

    Turned the main battery disconnect back on and my "Brake Failure" light is gone. I have driven the car several times since I did this and the light has stayed off, other than as it should at start up.

    I did change the brake fluid and bled the system a couple of weeks before this problem showed up, so I did that too.

    I will post a "how to" with pics in the tech sticky once I get input from others.
    Alden
     
  12. AUDIO RESEARCH

    AUDIO RESEARCH Formula Junior

    Feb 11, 2009
    355
    PHILIPPINES
    Full Name:
    LUIGI RAYMUND LIRA
    Hi Alden,

    Will be awaiting your post regarding how you did it.

    audio research
     
  13. theunissenguido

    theunissenguido Formula 3
    Owner Silver Subscribed

    Jan 21, 2004
    2,372
    Argent/Brasil
    Full Name:
    Guido
    For those who have LHD cars to chassis n° 43011 and also

    Ferrari Mondial 8 (1981)

    There is a brake faillure indicator in the brake system with an electric contact that indicates pressure difference between front and rear brake lines.

    Page 029 nr 016 from eurospares parts catalog
    Ferrari Mondial 3.0 QV (1984) - Brake System (Valid Only for LHD Up To Chassis No. 43011): Page 029.
    Page 028 nr 16 Ferrari Mondial 8 (1981) - Brake System: Page 028

    So maybe you have that also and is the pressure unegual between front and rear lines.

    Guido
     

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