XSeries-forum

[quote="storminmike"]
[quote="TimX5"]
[quote="graemeX5"]
Hi TimX5

You may want to check these links just in case you have any problems with bleeding it, as the bmw system it a bit clever which may need the pressure system and diagnostics laptop to be able to open the valves.

http://xdrivers.co.uk/forum/index.php/t ... l#msg76439

http://xdrivers.co.uk/forum/index.php/t ... l#msg28604

Graeme
[/quote]

Cheers for that Graham , I fitted my new rear flexible pipes back in July bleed them the old fashioned way lol no problems whatsoever , brakes are fantastic , the only thing I've had to pressure bleed in the past was a clutch on a volvo  truck a few years ago.
[/quote]


With all these scares of locking out the back then is there method of avoiding this when you say swap the pipe or maybe swap a caliper?

I short terms....did others let it drain too far or perhaps not create a vacuum by sealing off the reservoir?

What's the trick
[/quote]

I just connected the flexi to the steel pipe then put the brake pipe clamp on before connecting it to the caliper so there was minimal fluid loss and blead in the old fashioned way lol

When swapping out a caliper you can get a tool, cheap of EBay that clamps on the flexi pipe to seal it off. They are like a plastic pair of mole grips.
If the flexis are being removed , put a piece of cling film over the open  full reservoir this stops the flow of fluid draining the system as it causes a vacuum.
As mentioned above it has gone horribly wrong for some when air has gotten in the system. This can only be sorted by cycling the abs valves with a laptop and the correct software.
Edit. Sorry for the repeat advice, but the previos poster beat me to it, my typing is a little slow

Put a laccy band over the cling film around the cap thread to keep everything in place and maintain the vacuum.

Thanks guys...much appreciated advice