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Car Forum / Volkswagen / Water Cooled Volkswagen Cars / June 2007

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Brakes mk4 golf

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Matt - 20 Jun 2007 19:54 GMT
Hi,

Just about to change the front and rear pads and disc on a mk4 and am
looking for a caliper rewind toold for the job, one specific with a plate
for a mk4 no luck finding one yet.

Also haynes says to undo the bleed nipple on the rears and fronts before
winding the piston back, but a few mechanics in a forum I read say theres no
need just undo the brake fluid resevoir and wind it back gently. Anyone know
for sure as I don't want to damage anything.
Chris Bartram - 20 Jun 2007 20:07 GMT
> Hi,
>
[quoted text clipped - 6 lines]
> need just undo the brake fluid resevoir and wind it back gently. Anyone know
> for sure as I don't want to damage anything.

I've always been told you should undo the bleed nipples on an
ABS-equipped car, and do so, but conversely, lots of people have done it
without.
Jungle Boy - 21 Jun 2007 19:56 GMT
Halfords sell the tool for about £20.
Matt - 21 Jun 2007 22:18 GMT
> Halfords sell the tool for about £20.

Picked it up today, seems straighforward in useage should make a simple job
go simple :) I guess its a future investement for future cars I own and
maintain.
Nobby - 22 Jun 2007 15:01 GMT
>> Halfords sell the tool for about £20.
>
> Picked it up today, seems straighforward in useage should make a simple
> job go simple :) I guess its a future investement for future cars I own
> and maintain.

Unless totally prohibitive I always buy tools required for vehicle
maintenance, particularly when they're of the "general use" variety. They
make a difficult job, with risks of consequential component damage easy.

I bought said tool from Halfords and used it to wind back a tight rear brake
calliper on an A4 Audi that I couldn't move by any other means. The calliper
didn't leak and the piston did self-retract satisfactorily afterwards.

As far as I can recall the Audi instructions mentioned nothing about a
requirement to slack off bleed nipples before piston retraction. If you do
this you need to exercise caution in case you introduce air into the system.
Chris Bartram - 22 Jun 2007 15:10 GMT
>  If you do
> this you need to exercise caution in case you introduce air into the system.

Indeed- I used one of those one-way bleeding valve thingies.
Matt - 22 Jun 2007 18:36 GMT
>>  If you do
>> this you need to exercise caution in case you introduce air into the
>> system.
>
> Indeed- I used one of those one-way bleeding valve thingies.

Hmmm, I think I need to buy one of those as I'd rather losen the bleed
nipple a bit to ease things along and well follow the haynes this time. I've
heard good things of the gunson ezibleed on here will do some searching for
it.

What are you using Chris ?
Chris Bartram - 25 Jun 2007 08:55 GMT
>>>  If you do
>>> this you need to exercise caution in case you introduce air into the
[quoted text clipped - 7 lines]
>
> What are you using Chris ?

You can get away with a bleeding tube- less that £1. It's a rubber tube
with one end blocked, and a slit it the wall. The pressure lets fluid
and air out, but not in. Most car parts shops will sell one.

I've never heard anyone say a bad word about Eezibleed though.
Matt - 22 Jun 2007 18:40 GMT
>>> Halfords sell the tool for about £20.
>>
[quoted text clipped - 15 lines]
> this you need to exercise caution in case you introduce air into the
> system.

I had a good read of my instructions this morning for the wind back tool. It
says nothing about touching the bleed nipple. Checked out the procedure on
Haynes and says it needs slackening. If my pennies can;t stretch to one of
those nice one man bleed kits I might use some clear tubing and run it into
a clear bottle and get one of my competant kids to work the brake. Scrap
that they're useless at stuff like that lol
 
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