Replacing rear disc only?

Replacing rear disc only?

Author
Discussion

jetblast787

Original Poster:

2 posts

3 months

Friday 28th May
quotequote all
Hi all!

My MK6 Golf's rear discs require replacing, however, whilst I know pads and discs are supposed to be replaced together, my rear pads are almost like new (even though they were both replaced when I brought the car 3 years ago) and appear to have a lot of life left in them.

The car is currently only used for city driving so the bedding in of the old pads to the new discs I don't think would be an issue, but then again what do I know? laugh

Honestly the rear pads have so much life in them it'll be a waste to replace them, but before I decide I thought I'll run it by the professionals? Thanks!

Scrump

14,774 posts

126 months

Friday 28th May
quotequote all
I would fit new pads at the same time.
Brembo rear pads are £25 and Eicher rear pads are £15 at the moment from Eurocarparts (with their latest discount code!).
(I may not have picked your exact model of Mk6 golf, but the prices don't vary too much)

rustednut

614 posts

15 months

Friday 28th May
quotequote all
jetblast787 said:
Hi all!

My MK6 Golf's rear discs require replacing, however, whilst I know pads and discs are supposed to be replaced together, my rear pads are almost like new (even though they were both replaced when I brought the car 3 years ago) and appear to have a lot of life left in them.

The car is currently only used for city driving so the bedding in of the old pads to the new discs I don't think would be an issue, but then again what do I know? laugh

Honestly the rear pads have so much life in them it'll be a waste to replace them, but before I decide I thought I'll run it by the professionals? Thanks!
Generally a very false economy to not replace the pads, unless they are perfectly flat with no uneveness whatsoever. The slightest wear pattern will transfer to the new disc.

I also do not recommend cheap pads, but on the rear of a vehicle that is mostly city driving then a cheap pad that will wear quicker is probably better for the brake system than a slow wearing pad. The quicker they wear the more the calipers will be moving and less likely to stick. The downside is that cheap pads often make a lot more dust and potentially more noise.

CrutyRammers

11,286 posts

166 months

Friday 28th May
quotequote all
Wouldn't bother me in the slightest OP.
I doubt it'll make the slightest bit of difference to anything.

SlimJim16v

3,605 posts

111 months

Friday 28th May
quotequote all
False economy.

Sheepshanks

24,465 posts

87 months

Friday 28th May
quotequote all
Why do the discs need to be changed if the pads are almost unworn after 3yrs?

I can guess some answers, but what does the OP say (or what have they been told)?

rustednut

614 posts

15 months

Friday 28th May
quotequote all
Sheepshanks said:
Why do the discs need to be changed if the pads are almost unworn after 3yrs?

I can guess some answers, but what does the OP say (or what have they been told)?
That is a very good question.

stevieturbo

15,502 posts

215 months

Friday 28th May
quotequote all
Sheepshanks said:
Why do the discs need to be changed if the pads are almost unworn after 3yrs?

I can guess some answers, but what does the OP say (or what have they been told)?
this...presumably calipers or something are seized ?

But if the pads are good quality, plenty of life, no deterioration at all....probably no real reason to change them. Certainly say if they were old but very good OEM pads, I'd sooner use those than some new spurious aftermarket pad.

More investigation needed either way

FWIW

2,188 posts

65 months

Friday 28th May
quotequote all
I would always replace discs in pairs...

Smint

103 posts

3 months

Saturday 29th May
quotequote all
Whilst its ok to fit new pads to otherwise good but ageing discs, i've never done it the other way round, if the discs need changing there's no doubt an obvious wear pattern on the existing pads which may cause permanent tram lines in the new discs.

Daughter's new, to her, 16 plate mk 6 Golf needed new rear discs despite having covered under 20k miles, one disc looked awful like a 100k miler, usual cause of the brakes never having been serviced since new so one pad seized in place, never considered reusing the pads.




Edited by Smint on Saturday 29th May 06:29

hellorent

168 posts

31 months

Saturday 29th May
quotequote all
Put the old pads back on, you wont notice any difference.

Scrump

14,774 posts

126 months

Saturday 29th May
quotequote all
4 replies saying fit new pads
3 replies saying use the old pads
2 replies asking why the discs need replacing
1 reply saying replace discs in pairs
biglaugh

How u doing

21,996 posts

151 months

Saturday 29th May
quotequote all
The back doesn't do much braking so probably wouldn't be too noticeable. But still the wrong thing to do.

I had a worn disc replaced for me, braking didn't improve until the pads were done too.

jetblast787

Original Poster:

2 posts

3 months

Saturday 29th May
quotequote all
Scrump said:
4 replies saying fit new pads
3 replies saying use the old pads
2 replies asking why the discs need replacing
1 reply saying replace discs in pairs
biglaugh
Honestly didn't expect anything less laugh


FWIW

2,188 posts

65 months

Saturday 29th May
quotequote all
Scrump said:
4 replies saying fit new pads
3 replies saying use the old pads
2 replies asking why the discs need replacing
1 reply saying replace discs in pairs
biglaugh
biggrin

oakdale

1,293 posts

170 months

Sunday 30th May
quotequote all
The trouble with not replacing the pads is that the rust crust on the inner and outer diameter of the old disc (or anywhere else on the disc) will have crept into the pad swept area leaving grooves in the pads, due to the lack of contact between the old pads and the new discs in these areas, the new discs will soon look like the old ones as rust will occur in the same areas.

Chris32345

1,593 posts

30 months

Sunday 30th May
quotequote all
Scrump said:
4 replies saying fit new pads
3 replies saying use the old pads
2 replies asking why the discs need replacing
1 reply saying replace discs in pairs
biglaugh
Awaiting somebody saying sell the car and get something else

Pastie Bloater

694 posts

131 months

Sunday 30th May
quotequote all
Mk6 Golf bought 3 years ago? I'd be planning to trade it in before any more big jobs come up

biggrin

randomeddy

1,001 posts

105 months

Saturday 12th June
quotequote all
Chris32345 said:
Awaiting somebody saying sell the car and get something else
Move house instead.

littleredrooster

4,749 posts

164 months

Saturday 12th June
quotequote all
In past times when I was skint, I've flattened the pads off on some coarse glasspaper on a flat surface in order to re-use slightly-used pads with new discs.

Worked OK for me.