vw golf. caliper swap..bleeding question

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Wed 23 May 2007 17:59
vw golf. caliper swap..bleeding question - steveo3002
i need to fit one new front caliper (old one keeps sticking) i recently changed the fluid and had a real job getting the rears to bleed properly even with the load valve forced open

so my question is...when i fit the new caliper can i just bleed that corner?

1991 g60 golf with abs
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Wed 23 May 2007 18:00
caliper swap..bleeding question - steveo3002
also... should i attempt to part fill the new caliper with fluid before fitting
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Wed 23 May 2007 18:02
caliper swap..bleeding question - nick
If you clamp the brake hose to the calliper beforehand, you might get away with it. Better to do the lot though and change the fluid at the same time.
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Wed 23 May 2007 19:04
caliper swap..bleeding question - yorkiebar
Whilst I agree with the idea of clamping the brake hose ( to minimise fluid loss and to stop air entering other parts of the system) be careful. A lot of newer cars, especially VW have the hose as part of the brake pipe and it must not be clamped. If it is it will need complete pipe renewal.

In theory though you should only have to bleed the corner that you have disturbed.
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Thu 24 May 2007 08:45
vw golf. caliper swap..bleeding question - Steptoe
I have never liked clamping hoses, seems too brutal especially on old hoses.

I've always used the old trick of putting polythene under the brake fluid filler cap (or clingfilmed if more appropriate)

I find that a small amount of fluid still leaks out, which is useful to prevent air getting into the rest of the system, but not enough to empty the master cylinder whilst working. If the job is going to take a long time the hose end can be sealed with a bleed nipple dust cap
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One mans junk is another mans treasure
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Thu 24 May 2007 09:56
vw golf. caliper swap..bleeding question - Cliff Pope
I have always undone the connection and then quickly stuck a wooden wedge or golf T into the end to stop the fluid running out. Bench bleed the new unit, filling to the brim, and likewise plug the hole. Refit caliper, then quicky reconnect. Leave the joint a turn loose, and gently press the pedal to expel air at the joint, like getting air out of a domestic radiator. Tighten up. Usually there is no need to do any other bleeding.
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