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Spongy Brakes...

M87NER

MATNER
Mar 11, 2007
1,338
0
Stoke-on-Trent
Hi,

Yesterday i replaced my rear discs and pads on my cupra, also sorted out the seized piston, ive bled the rear brake lines but im still getting spongy brakes...

is it best to bleed the fronts aswell ?

Cheers
 

lemonslap

In The Know
Mar 14, 2009
320
1
Kent
as above bleed all the the lines (if you have abs with the engine idling) also remember if you have fitted new pads and discs they take awhile to bed in.
 

M87NER

MATNER
Mar 11, 2007
1,338
0
Stoke-on-Trent
Cheers, how come you have to have the car idling if i have abs? would that mean i will have to bleed the backs again?

Will give the fronts ago tomorrow then.

Cheers
 

lemonslap

In The Know
Mar 14, 2009
320
1
Kent
Cheers, how come you have to have the car idling if i have abs? would that mean i will have to bleed the backs again?

Will give the fronts ago tomorrow then.

Cheers

Having the engine running is allowing fluid to pass through the abs unit, however they are supposed to be done using vag.com or similar to put the unit into its basic setting.
 

Fl@pper

Back older greyer and less oilier but always hope
Jun 19, 2001
12,368
25
Gloucester
check the brake lines and start with the furthest away first

iirc it will be RH and LH REAR then RH then LH FRONT
 
May 16, 2008
506
0
southampton
mate my brakes are soft and had them bled twice pressure and i been keeping a eye on thing and noticed mine is a vac probem as when my boost gauge drops to 30 in vac the brakes are rubbish but when its on or just under 20 they are brilliant have u got the same problem..
 

M87NER

MATNER
Mar 11, 2007
1,338
0
Stoke-on-Trent
mate my brakes are soft and had them bled twice pressure and i been keeping a eye on thing and noticed mine is a vac probem as when my boost gauge drops to 30 in vac the brakes are rubbish but when its on or just under 20 they are brilliant have u got the same problem..

nope, only happened since changing rear discs ect.... think a may have some air in the system still
 

Fl@pper

Back older greyer and less oilier but always hope
Jun 19, 2001
12,368
25
Gloucester
never used it - got same style abs and always done mine the old fashioned way
 
Lecatona HPFP (High-pressure Fuel Pump Upgrades)