156 soft brakes all the way - Alfa Romeo Forum
You are currently unregistered, register for more features.    
Thread Tools Search this Thread
(Post Link) post #1 of 5 Old 19-03-10 Thread Starter
Status: -
Join Date: Jan 2008
Posts: 9
156 soft brakes all the way

My 156 2.5 V6's brakes can occasionally go very soft all the way to the pedal bed and require pumping to get the pedal firmer again. This can sometimes result in a slight front wheel wobble if I brake hard.

I have full brake fluid so could it be an air lock or servo or anything else at all? All ideas gratefully received - hoping to sort it asap as don't feel particularly safe.

wadster is offline  
Sponsored Links
Status: -
AO Member
Join Date: Aug 2009
Location: United Kingdom
County: Hampshire
Posts: 191

Member car:

159 1.9jtdm 2007

Sounds strange, but I would replace the fluid and make sure its all bled properly as a starting point. Im sure others will have more ideas though.
2512chrisb is offline  
Status: -
AO Platinum Member
David C's Avatar
Join Date: Aug 2003
Location: London, England
Posts: 28,990
Pedal to the floor usually means the fluid is well past replacement time!
David C is offline  
Status: Still engineering
AO Silver Member
Old Engineer's Avatar
Join Date: Mar 2003
Location: Esher
County: Surrey
Posts: 1,926
Images: 12
Pedal to the floor can also be 'pad knock back'. I see you have vibration so I think you have discs that are wobbling. The pads are being pushed back by the movement in the discs.

I once had a race car that suffered soft brakes after I upgraded the tyres to soft super slicks. The effect of the change was giving me better cornering but also bending the struts so a very good corner was followed by a corner with no brakes!
Old Engineer is offline  
Status: Banned for not following the site rules
Join Date: Feb 2008
Location: United Kingdom
County: Wiltshire
Posts: 9,721
Images: 6
Think I'd er with safety as I always do with brakes and replace the disks and pads all round AND flush/bleed the complete system including the clutch.

The other thing to consider is the rubber hoses, if they are expanding then you need to replace them, there's very little difference in price between standard and braided hoses and for the effect it has it's worth every penny to have braided hoses fitted.
Smaky is offline  

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 147, 156 & GT

156 , brakes , soft

Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search

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 Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

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