Brake Bleeding and Fluid Change

[didsi]

Hi,

i changed my front discs and pads last week, read some threads about changing brake fluid. Never been done and 80k on clock.

Do i need to, If so could anyone advise best and easiest way to bleed system and change fluid. Also what fluid to get.

1.6 Leon SX - 'FS III' Brake Calipers.

Cheers

 

[didsi]

http://www.halfords.com/webapp/wcs/...uctId_204645_langId_-1_categoryId_165469#dtab

Would this be useful!?!

 

[vwbassett]

Definitely as it is probably the only cheap way to do it other than going to a garage. Also get more fluid than you will probably require ie 2-3 litres just incase, another little bottle and same clear tubing to put on the slave cylinder end ie caliper.

Fluid i would buy dot4, dot 4 super/plus or dot 5.1 but not dot 5 under any circumstances. As long as the fluid is sealed and hasnt been opened it will be fine from any manufacturer Halfords own would be fine for this purpose.

 

[godber225r]

Get a gunson eazibleed and go round all the calipers till fresh fluid comes out.

You dont need to bleed the master cylinder only if you pull air into it. the genuine stuff is dot 4 and pretty reasonable price.

 

[didsi]

cheers guys, will give it a go

 

[wilfster]

The item on bleeding SEAT brakes in Elsawin mentions maximum 1bar pressure in the bleeding tool. Can the Gunson bleeder be set to a max pressure? Or would it be necessary to deflate the spare wheel to 1bar?

Can you change the fluid on a car with ABS etc. by the traditional pedal-pumping method without a pressure bleeder?

 

[vwbassett]

The manual method is not recommended as the seals roll over and its game over just deflate a tyre as mentioned and you shouldnt have a problem.

 

[Cupra Ross]

You need to deflate the spare to about 14psi. Gunson Eezibleed is the only way to go. Be very careful with the bleed nipples on the rear calipers, one of mine had been tightened up too much and it stripped the thread when I tightened it back up, result = brake fluid Pi**ing all over my driveway, undriveable car, new caliper required. The nipples don't need to be tight at all, just past the point of resistance.

I used DOT 5.1 fluid and its nice and sharp on the brakes. The clutch needs to be bled too or you'll still have old fluid in the system.

If the brakes feel good and work well, don't change the fluid.