Air in brake.....

[big albig]

Line me thinks.
Whats the best way to bleed the brakes with new hose's on plese.
Al

 

[Timolgra]

Depends if you have servo/abs

 

[hops]

I've used this method

Reverse fill with a big syringe from the caliper bleed nipple.

 

[big albig]

ABS only.

 

[hops]

I've used this method

Reverse fill with a big syringe from the caliper bleed nipple. This might help
http://www.moccsplace.com/images/brakes/bleeder/bleeder.htm

 

[big albig]

Thanks Hops looks quite simple will try the weekend and see how I get on.
Thanks.

 

[uncle dick]

No need for syringe. Just do it in the normal way with a bit of pipe and an old milk bottle to catch the fluid. Bleed the ABS bit first then the calipers. Finish by getting the last bit of air out of the ABS unit.

Once the tank's off 10 minutes tops

 

[B4ndit]

Finish by getting the last bit of air out of the ABS unit.

Once the tank's off 10 minutes tops

Thanks for that. BMW don't say that but it probably makes sense. Just done my brakes as guided by BM which didn't include that last bit.

Something for the weekend sir?

 

[Steptoe]

No need for syringe. Just do it in the normal way with a bit of pipe and an old milk bottle to catch the fluid. Bleed the ABS bit first then the calipers. Finish by getting the last bit of air out of the ABS unit.

Once the tank's off 10 minutes tops

Bleed abs modulator first and finish at the caliper.

 

[MattW]

Could 'them as knows' tell me ...

To do a fluid change (1100, ABS) is it necessary to flush out from the ABS unit as well as the caliper? I've only ever bled through from the master cylinder to the caliper (easy with one of those easybleed type non return jobbies) - should I be doing the ABS unit too?

Ta (apologies for the slight hijack)

 

[Jiffy176]

Matt
I did read somewhere that abs is supposed to be bled and it did say don't worry if can't get to abs unit as it will get pushed through eventually

 

[B4ndit]

For the 1150 the manual is quite clear that the ABS has to be done.

I recently did my lines and it was only the ABS unit that had the really dark cruddy stuff in. Looks like in the past the calipers had been done but not the ABS. I have ABSII and it wasn't hard to do. Hardest bit is taking the tank off.

 

[fatnfast]

I have never bled from the abs unit under the tank during annual fluid changes. This is from the Oil Head Maint Guide:

'The ABS system has a bleeding nipple under the gas tank. You do NOT have to bleed
from this nipple. Old brake fluid will be totally flushed when bleeding from both front and
rear caliper nipples. Bleeding from under the tank will neither hurt nor help your brake
system. The nipple at the ABS unit under the tank may be bleed before starting with the
front nipples at the calipers. Some shops bleed at the ABS under the tank, some do not.
Under tank bleeding is recommended by the BMW manual. However, you should bleed
from under the tank if your bike experiences problems outlined in the paragraphs: " AIR
IN REAR BRAKE SYSTEM" or "UNRESPONSIVE BRAKES''

 

[big albig]

This may sound stupid, But whats the best way of bleeding the ABS unit.
Thanks in advance.

P.S anyone use a Mittiy Vac for brake bleeding, and any good?
Al

 

[fatnfast]

Always used a mityvac, but I have only ever bled from the calipers, as I have not had reason to disturm the abs unit. However, it only has two bleed valves on it (2002 and earlier), one front, one rear. Follow the pipes to select the right circuit, ie front or rear. The just bleed away with the mity. dont forget keep an eye on the master cyl level and top up as required. Finish of at the calipers.
I always maintain the pressure in the mityvac, if its alway sucking, air cant get in.