So i was under the car earlier and noticed that the writing on my calipers was upside down. I put them on this way since the bleed nipple needs to be at the top. But I'm not so sure.

Any ideas? They're from a mk2 golf gti if that helps, and I'm struggling to find a decent picture of them fitted

Bleed nipple has to be at the top i thought.

Calipers can go in front of or behind the disc on rears

Well it has to go on this side for the hand brake to work.

So do we think this is the right way up?

Maybe not

See section 28 of this

Really looks like is filled from bleed nipple then overflows out of hose.

Then tighten nipple, plug hose, fit to car.

I see. So mine are on upside down by the looks of it. Wish i could remember which way i took them off At least my brake hoses will be long enough now!

How the f**k do i go about filling them up

In the past Iv known people have to remove calipers and put something between the pads to get the air out and such

How do you mean? My problem is actually filling them up, i dont have the fittings or anything. I've never heard of this as a problem before with other peoples builds

You fill them in reverse either by vac or pressurised. instead of bleeding from the calliper you pump fluid into the calliper and out of the reservoir.

Fuck. But how? I don't have a pressurised system. Alhough its going to make bleeing the brakes easier, as currently my reservoir empties after 3 pumps!

Right, looking at this picture, and its not clear, I assume its in the position it would be in when on the car, I do indeed have mine on upside down (look where the hand brake mechanism springs are)

those callipers are different, that axel is also upside down

I can see the calipers are slightly different, but how can you tell the axle is the wrong way around? I dont think it is, looking at the shape of the webbing linking the bottom shock mounts to the beam

vag cat shows it the wayround that you have it

Really? Thats annoying. Switching them round would have sorted a few problems

How about removing the calliper, bleeding it the right way up but tie the piston with a cable tie or something to stop it from moving, then refit?

might work.

Why would i need to do that? Do you think as it fills with fluid the piston will start to come out? I think i have figured a way to do it, but it wouldn't be enough pressure to push the piston out. Just thinking though, as soon as i reattach the hose, there's bound to be air trapped in the line, or do i just bleed that until it runs clear with the caliper off? But how?

definitely upside down.

the handbrake cable is meant to go along the underside of the axel.

the M12x1 hose fitting should be on top of the calliper, as should the bleed nipple.

i have mk4 callipers on mine, so the handbrake mechanism is different but the ports are in the same place

The bleed nipple is on top on mine, well as on top as it can go

Bleed nipple's always gonna be on top.

^^ but if the method of bleeding is different, maybe this doesn't ring true Also, in my original picture, is that on top (it cant be anywhere else except underneath)

Surely you could get a pressure bleeder. Once the calipers are off. Swop the around and bleed them. With a pressure bleeder there's no need to touch the pedals and you can get 1 for £20 from halfords. All the cars I have ever worked on have the bleed nipples at the top, so the air goes to the top of the caliper allowing it to flow straight out when the nipple is opened. I don't know much about Vws but maybe you have the wrong side caliper on. I thought both sides have handbrakes!!

It is weird, the brake pipe is shocking. Surely that caliper is upside down.

Did the MK4 Golf recently, different, handbrake cable still feeds under the trailing arm though.

How can you not remember disconnecting the handbrake on the Golf?! Or cutting the brake pipe?! Which tools did you use? Were you drunk..?

Anyway, every topic i can find shows the calipers on that side of the hub (outside the wheelbase) but the other way around - handbrake in the bottom and hose in the top.

That's what i'd do, as the brake line is too vulnerable there.

I'd still try bleeding it normally, there's probably no void in there with the piston pushed fully back, and some disc bleed nipples passage to the middle of the cylinder where this is the case (unlike a drum cylinder which has a spring between the twin pistons).

One tip i do know - Pump the brakes, after bleeding, before operating the handbrake. This helps ensure the pistons are pushed out to the discs without taking up handbrake adjustment.

Fit with nipples down.

To bleed, invert, support and insert block of wood against cylinder.

http://www.clubgti.com/forum/showpost.php?...amp;postcount=2

Mikey, I took the brakes of of a golf about 2 years ago, so its gone right out of my head! And I was thinking the same about the brake pipe.

dvderlm, was just about to peruse clubgti, so thanks. I'm still concerned there will be air in the brake line itself, before I get an opportunity to screw it to the union. Also, the picture you can see is a girling 38, mine are 36s. It also mentions that the old cable (when he had girling 36s) ran on top of the rear beam, and that its the 38s (from the newer cars) runs on top of the beam.

Edited 21 May, 201214 yr by prankstar2003

Swap the right to the left. Be right then!

Get a pic of the pad placement. bet there in correctly but calliper upsidedown!

Edited 21 May, 201214 yr by LiamMk6Polo