New rear discs, pads, and calipers

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littlepolo
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Joined: Thu Jul 21, 2011 9:47 pm

New rear discs, pads, and calipers

Post by littlepolo » Wed Jul 10, 2019 11:43 am

Just replaced the rear discs, pads, and calipers on my 2002 9n due to an MOT coming up next month. I'd planned to replace discs and pads for a long time but on the previous attempt could not rewind the piston, hence new calipers. Let's just say the old discs looked like they had been sitting in a farmer's field.

Used Febi discs, Mintex pads (no wear indicator), and TRW/Lucas calipers. One of the caliper sliding pins had seized up so had a delay to proceedings. Got it on the bench with some penetrating oil and manipulated it until loose. The pin was corroded. It looks like whoever did the job previously did not correctly refit the rubber boot, enabling moisture penetration. Other than that it was a straightforward job. Also flushed through some new VW spec brake fluid as I was not sure how long the old stuff had been in there.

I'll post some pics shortly.

RUM4MO
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Re: New rear discs, pads, and calipers

Post by RUM4MO » Wed Jul 10, 2019 1:09 pm

Did you buy VW Group's own branded brake fluid, I'm just asking the question as someone said that his dealer told him that VW Group dealerships no longer stock 1 litre tins of it, maybe only now selling TRW branded brake fluid in 1 litre containers or maybe none at all as the workshop buys it in in bulk?

I have never had trouble with these guide pins, I have never ever done anything other than checking that these slider/guide bolts do slide, it might help to grease them with silicon grease as that stuff does not annoy the rubber gaitors - that is what I do with the front guide bolt at every brake service.

littlepolo
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Re: New rear discs, pads, and calipers

Post by littlepolo » Mon Jul 15, 2019 8:44 am

It was VW brand fluid, purchased from TPS. Available in 250ml, 1L, and 5L. I purchased a 1L and used just over half.

The slide pin problem was on one side only. I'm pretty sure it was due to the boot fitting.

RUM4MO
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Posts: 4114
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Drives: B8 S4 & 6R/6C1 1.2TSI 110
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Re: New rear discs, pads, and calipers

Post by RUM4MO » Mon Jul 15, 2019 10:19 am

Interesting about the brake fluid, I've never been near a TPS, possibly for fear of getting told to "clear off, we only sell to trade customers". I plan to check the brake fluid story out at my local dealership later this week as it could just be that someone upset their local dealer a bit, so they got nasty.

LeonSymnz
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Re: New rear discs, pads, and calipers

Post by LeonSymnz » Sat Jul 20, 2019 5:16 pm

vw brand break fluid? The f**k are you guys on about? lol

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