Catastrophic brake failure Scenic - Soft pedal - Renault Forums :: Independent Renault forum

Brakes/Hubs Brakes, Hubs, and etc

 6Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 1 Week Ago Thread Starter
Junior Member
 
Join Date: Jan 2011
Posts: 14
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
Exclamation Catastrophic brake failure Scenic - Soft pedal

Near death experience to report to you people. Nightmare for my wife coming down the steep hill towards a busy intersection. Basically the brake pedal went straight to the floor and the handbrake barely made any difference. She was forced to plough into a signpost to stop the car. I read on another thread that a master cylinder seal that was flipped or torn would explain it. I have only just had a basic brake rolling rd check at Halfords done and it seems the brakes are working. My experience in picking up and driving the tied up car from the accident scene was that the brakes are working, so I don't get it, can the brakes just fail like that and then work again? It's a 2005 Scenic 2.
Darrylpb is offline  
  5 Lastest Threads by Darrylpb
Thread Forum Last Poster Replies Views Last Post
Catastrophic brake failure Scenic - Soft pedal Brakes/Hubs sevenhills 13 357 18th April 2017 06:28 PM
Passive or Active Sensors Brakes/Hubs Darrylpb 0 863 2nd September 2013 06:53 PM
Scenic II passenger seat stuck jammed Interiors Darrylpb 0 818 2nd March 2013 08:53 PM
Scenic rear fog lamp fault Electronics madnoel10 3 1775 15th June 2012 03:56 PM
Window & lock problems after battery failure Electronics Darrylpb 4 915 12th November 2011 04:38 PM
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 6 Days Ago
Veteran Member
Technical Supremo
 
Dancingdad's Avatar
 
Join Date: Dec 2013
Posts: 11,093
Nominated 43 Times in 38 Posts
Nominated TOTW/F/M Award(s): 15
Thanks: 997
Thanked 2,057 Times in 1,614 Posts
Re: Catastrophic brake failure Scenic - Soft pedal

Yes.

Possibly a sticky caliper moved suddenly taking a lot of fluid.
Possible brake fade from pads overheating.

My guess however would be old brake fluid, hot brakes from using on the hill and the fluid boiling, instant steam and no pedal.
Currently in Dancingdad's garage:
Qashqai 1.6 spark driven, Kia Sedona 2.9 TDI, Scenic II 15DCi 2004 (SORN) not quite RIP.
Dancingdad is offline  
post #3 of 14 (permalink) Old 6 Days Ago
Official tight fisted Jock
 
batfink5's Avatar
 
Join Date: Apr 2015
Posts: 16,079
Nominated 9 Times in 8 Posts
Nominated TOTW/F/M Award(s): 4
Thanks: 1,656
Thanked 1,546 Times in 1,271 Posts
Garage
Re: Catastrophic brake failure Scenic - Soft pedal

As DD says first thing to look at is the fluid ...2005 car ..has the fluid been changed in the last 12 years ? one look in the reservoir and a look at the colour of your fluid and new can tell a lot ... brake fluid l can absorb moisture over time, and that can lead to corrosion in the brake system. Moisture also lowers the boiling temperature of brake fluid, and that can reduce braking effectiveness in repeated hard stops

It is easier to take it apart than to put it back together
Currently in batfink5's garage:
Laguna MKIII 2.0dci dynamique, Clio dynamique tom tom, Vauxhall Zafire
batfink5 is offline  
 
post #4 of 14 (permalink) Old 6 Days Ago Thread Starter
Junior Member
Threadstarter
 
Join Date: Jan 2011
Posts: 14
Nominated 0 Times in 0 Posts
TOTW/F/M Award(s): 0
Thanks: 0
Thanked 0 Times in 0 Posts
there is no way the brakes overheated it's only a very short journey in fact the car stalled twice because the engine was still cold. The car had a major service last year and I presume they check the brake fluid's. Actually come to think of it I'm very surprised when I took it into Halfords today I dont think they checked as the brakes are working.
Darrylpb is offline  
post #5 of 14 (permalink) Old 6 Days Ago
Veteran Member
Technical Supremo
 
ours2012's Avatar
 
Join Date: Dec 2014
Posts: 16,995
Nominated 41 Times in 35 Posts
Nominated TOTW/F/M Award(s): 12
Thanks: 1,804
Thanked 1,965 Times in 1,630 Posts
Re: Catastrophic brake failure Scenic - Soft pedal

When was the last time brake fluid was changed?
If ever,....

Sometimes I wake up grumpy; other times I let her sleep

Currently in ours2012's garage:
My Baby ( or the shed on wheels )Laguna 2 estate with 8 months MOT..
ours2012 is offline  
Reply

Tags
brake , catastrophic , failure , pedal , scenic , soft

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Renault Forums :: Independent Renault forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome