Brake pads
Author
Discussion

avinalarf

Original Poster:

6,438 posts

172 months

Wednesday 9th December 2015
quotequote all
Need your advice.
Having the car serviced,adviced that the rear pads are 75/80 % worn.
I do approx 1500 miles a year,mostly in town.
Would you have them done now.
Instinct tells me to get them done now before possible disc damage.
Also front flexi hoses corroded.....what are they and what is their purpose.
Please excuse my abysmal ignorance,very embarrassing.

Edited by avinalarf on Wednesday 9th December 12:05

woodsypedia

871 posts

183 months

Wednesday 9th December 2015
quotequote all
How long have you had those pads on? From the duration you'll be able to calculate the wear rate. If you're only wearing at 5% per year - you could easily stretch them out (given it's Christmas etc). If your wear rate is higher then a change might be in order. I don't think you're going to do any damage running them to 90%. These are usually just advisories.

Chris.

avinalarf

Original Poster:

6,438 posts

172 months

Wednesday 9th December 2015
quotequote all
woodsypedia said:
How long have you had those pads on? From the duration you'll be able to calculate the wear rate. If you're only wearing at 5% per year - you could easily stretch them out (given it's Christmas etc). If your wear rate is higher then a change might be in order. I don't think you're going to do any damage running them to 90%. These are usually just advisories.

Chris.
They were changed in December 2013.
I don't understand how they have only lasted 4000 miles,is that "normal".
Is it the city driving ?

F1NDW

411 posts

181 months

Wednesday 9th December 2015
quotequote all
avinalarf said:
They were changed in December 2013.
I don't understand how they have only lasted 4000 miles,is that "normal".
Is it the city driving ?
I bought my Vanquish in 2011 and I've done 25k miles. All over the Swiss Alps, runs out with the maniacs on here and I've still got more left than you state but I am going to change the pads next year. Mind you I hardly ever use it around town. It doesn't sound right to me!

avinalarf

Original Poster:

6,438 posts

172 months

Wednesday 9th December 2015
quotequote all
F1NDW said:
I bought my Vanquish in 2011 and I've done 25k miles. All over the Swiss Alps, runs out with the maniacs on here and I've still got more left than you state but I am going to change the pads next year. Mind you I hardly ever use it around town. It doesn't sound right to me!
To me neither.
The two other cars I drive I have not had a problem with the pads wearing down so quickly,so from that I extrapolate it's not my driving style.
Apart from your example I wonder what mileage others of you have averaged.
Rechecked my records and they were fitted July 2013, so that's about 5000 miles

Edited by avinalarf on Wednesday 9th December 14:41

R1CKF

126 posts

181 months

Wednesday 9th December 2015
quotequote all
In my experience in selling brake pads over the last 30 years, i would say that it is very unusual to need a set of pads after 4000 miles. Having explained the majority of your driving is in the city, i would have expected them to last a lot longer than that. You also have a brake sensor which will warn you on the dashboard that your pads are getting a low and generally leave you around 800/1000 miles before they damage the disc.

I have sold many,many pads to plenty of Aston Martin owners from Pistonheads and i would say all of them have done at least 10,000 miles on their previous pads. The only explanation might be if you have a brake caliper sticking which might give uneven wear ?? have not heard of this tho.

The front flexi brake pipes supply your brake calipers and are a critical part of your brakes, but are usually replaced when split or freyed, but when they have been reported that they are corroded, i would have thought that it is just the unions going rusty which shouldnt cause a problem. If the flexi pipe has a metal pipe in the hose itself and that is corroded then they should be changed.

Phil74891

1,086 posts

163 months

Wednesday 9th December 2015
quotequote all
Based on the above, might the dealer have got the 75/80% figure wrong?


hashluck

1,626 posts

305 months

Wednesday 9th December 2015
quotequote all
Phil74891 said:
Based on the above, might the dealer have got the 75/80% figure wrong?
I think that is where we are heading here smile

I remember excessive use of traction control can wear rear pads early but that does not sound like avinalarf's style

avinalarf

Original Poster:

6,438 posts

172 months

Wednesday 9th December 2015
quotequote all
R1CKF said:
In my experience in selling brake pads over the last 30 years, i would say that it is very unusual to need a set of pads after 4000 miles. Having explained the majority of your driving is in the city, i would have expected them to last a lot longer than that. You also have a brake sensor which will warn you on the dashboard that your pads are getting a low and generally leave you around 800/1000 miles before they damage the disc.

I have sold many,many pads to plenty of Aston Martin owners from Pistonheads and i would say all of them have done at least 10,000 miles on their previous pads. The only explanation might be if you have a brake caliper sticking which might give uneven wear ?? have not heard of this tho.

The front flexi brake pipes supply your brake calipers and are a critical part of your brakes, but are usually replaced when split or freyed, but when they have been reported that they are corroded, i would have thought that it is just the unions going rusty which shouldnt cause a problem. If the flexi pipe has a metal pipe in the hose itself and that is corroded then they should be changed.
Thanks Rick,very helpful.
As I do minimal miles in the winter I shall not change the pads now but will get a second opinion.
I am however replacing the front flexi pipes.

woolders

874 posts

187 months

Wednesday 9th December 2015
quotequote all
Avin, the brake pad warning lights will come on at 75% usage, so it could be bullst. Lancaster Reading tried it with me four years ago; shame they got shut down! I think that they start at 8mm so ask them how much they measured them at and see what they come up with; anything more than 2mm and you have your answer.

The handbrake pads operate the traction control and not the rears.


roughrider

998 posts

216 months

Wednesday 9th December 2015
quotequote all
woolders said:
The handbrake pads operate the traction control and not the rears.
Traction and DSC use the actual brake caliper, not the handbrake caliper. Worn rear pads can be a sign of regular traction/DSC intervention, through wheelspin or understeer.

Grumpydev

265 posts

131 months

Wednesday 9th December 2015
quotequote all
Been sorting the paperwork out to sell my TT and noticed from the previous service to this one that the brake pads have actually gotten less worn - so either I have self regenerating pads, or the dealers are a bit hit and miss when it comes to measuring them :P

Dingle Dell

227 posts

168 months

Thursday 10th December 2015
quotequote all
Before I brought my car from a specialist dealer, I spoke to the main dealer who had done the last service, and they said to me the front and rear pads were 80% worn. The car had done another couple of thousand miles since then as well.

I bought the car and checked them myself and they were probbly a third worn at most - I take everything a dealer tells me with a pinch of salt these days.

8Tech

2,212 posts

228 months

Thursday 10th December 2015
quotequote all
In my opinion, you should be able to see the thickness of friction material visible through your wheels with a torch. I recommend not going below 2.0mm because the pads cannot shed the heat and the additional operating temperatures start to wear the discs.

If the 8mm mentioned above is accurate, you will be able to calculate the wear yourself, and in any case, as also mentioned above, you have pad wires to warn when you are around 80% worn anyway.

As far as I am aware, the front flexible brake hoses are stainless steel, so they will not be corroded although the end fittings may be which is really not an issue.

It all sounds like scare tactics to get some business to me.

The only time I have ever seen very high brake pad wear rates is on cars that are used very infrequently and the discs surface rusts badly and this accelerates pad wear as the pads clean off the corrosion in use.

Edited by 8Tech on Thursday 10th December 22:45