Caliper sticking rear drivers side VW Polo 2011 1.2 TSi

[coffee_king]

Hi Guys
Got back from a service and I was told that my driver side rear brake caliper is sticking.
I thought something was going on with the brakes as I can hear a kind of metal on metal rubbing noise.

Also noted is:
OSR disc has lip and scores (I think it says scores?)
Both front discs have a lip - Pads OK

So, my question is can I simply UNSTICK/fix this caliper myself?
Also can I remove the lip and score from the disc?

Ive done some work on cars/brakes before and I certainly dont mind having a go at anything not majorly complicated.

I assume the caliper will definitely need doing to pass an MOT? and if I'm doing that I may as well replace pads and replace/try to remove lip/score on rear discs?
Also does it even sound like the front needs doing though?

Your thoughts on this matter would be very much appreciated.
Thanks in advance.

Full quote:
Rear Pads £31
Rear Discs £54
Labour £60
Total £145

Caliper £198 - Including labour and VAT

Front Pads £41
Frton Discs £87
Labour £60
Total £188

Complete total £531

(Im sure I can probably get all this done cheaper elsewhere mind you)

[RUM4MO]

First the sticking calliper, I'm guessing that the garage that serviced your car are quoting for the worst case situation, ie calliper u/s as they will not have taken the calliper off its mounting bracket, just given it a visual check. So, if you know your way around brakes, why not service/clean up your brakes - all of them and see if you can "unstick" that calliper, it might just be seized pads within the calliper etc. Has that car had its brake fluid replaced at 3 years then every 2 years after that, if not do that as well.

Lips on discs, as the disc wears down (along with the pads), the unswept zones remain and so show up as "lips" - they can be removed by machining them, but t is far cheaper replacing the discs which is what most people do - but, is this just an observation, ie can things stay as they are excepting the sticking rear calliper, until the present pads are due to get replaced?

Rear discs do end up looking horrible, ie tarnished/rusted in sections getting ridges showing and wearing through and so forming a lip, but if they are still thicker than the minimum suggested thickness, then they will should still be okay for an MOT.

Edit:- one thing though if you intend to replace the rear discs and pads, you will need a piston wind back tool, maybe cheapest in Screwfix or MachineMart if either near you, just normal righthand thread version. ECP is good for Pagid discs and pads.

Another Edit:- have you ever considered buying external handbrake lever return springs, that was the first thing that I fitted to my wife's August 2015 Polo 1.2TSI 110PS when it was new, maybe not so important on these cars but the earlier 9N Polos definitely needed them especially on the offside calliper!

[coffee_king]

Hey
Cheers for the repsonse, its really appreciated.
Brake fluid is replaced on bi-yearly services so it will be fine.
Will I have to bleeds the brakes after replacing calliper, discs, pads etc?

[Ricmondo]

Discs, pads no. Calliper yes although a brake hose clamp will minimise the fluid loss.

[RUM4MO]

Maybe this comment/observation has been mentioned already on this forum, but if not:- I was cleaning up all the brakes on my wife's August 2015 Polo 1.2TSI 110PS SEL prior to it being handed in for its "year 2" service, and what I noticed was, that either VWG or the brake manufacturer has deleted the thin springy plated inserts that were mounted on the rear calliper/pad mounting where the pads contact, I wonder why other than to save money!

These items, in my world, appeared on the early 9N Polo and other cars of that age, back in 2002, so by maybe 2010 they were dumped/deleted or maybe not until the 6C versions came along in 2014/15. In my experience, they did perform their intended role which would be to minimise the incidence of the rear pads partially seizing - the rear pads on that August 2015 Polo1.2TSI certainly were gripping the calliper enough to cause extra drag prior to me cleaning and re-lubing the contact points. I might now see if there is enough space in there for me to add these springy shims back in.

[RUM4MO]

Hey
Cheers for the repsonse, its really appreciated.
Brake fluid is replaced on bi-yearly services so it will be fine.
Will I have to bleeds the brakes after replacing calliper, discs, pads etc?

If I were you, I'd try to clean up that calliper and fit external return springs before spending good money on a new calliper, but if it ends up being totally seized then maybe you will need to replace it, but try to get it working first.

[coffee_king]

Hey
Do you have a part number/link for external return springs please?

[RUM4MO]

Hey
Do you have a part number/link for external return springs please?

From my records:- for the N/S 7M0 615 295 and for the O/S 7M0 615 296 these could be SEAT Sharan 1998 part numbers, though VW probably used them on a similar aged Galaxy, I'm guessing that I bought them locally from my VW dealer, if not a local SEAT dealer. There are a few online VW/SEAT/AUDI/Skoda dealerships if that saves you travelling etc.

Edit:- it could be that these parts have been revised and are now N/S 7H0 615 295A and O/S 7H0 615 296, VWG do tend to change the "initial user platform" when they revise a part used in the past but now revised and give it the current "in production platform user" first group of numbers, just the way they do things, my old 2000 VW Passat 4Motion ended up getting Skoda Superb front brake flexi pipes - as that was the "in production user platform" still using that item when I ordered it.

Now, price, I recorded paying £2.98 for each of these springs back in August 2015, so if you see prices like £6.98 each in ebay, maybe order them locally?