when to change brake pads/disc - minimum mm?

JustinR1979

Joe_Horner wrote: »

Wow! 8 hours and 10 posts into a thread about brakes, and so far no-ones posted that you must do the pads and disks together (all 4 wheels, of course) and should consider changing the fluid, all pipes, ABS ECU, tyres and rims at the same time cos it's safety innit!

What a refreshing change

Can you show me where this has previously been posted so I can feel refreshed to?

FiremanDave

Joe_Horner wrote: »

Wow! 8 hours and 10 posts into a thread about brakes, and so far no-ones posted that you must do the pads and disks together (all 4 wheels, of course) and should consider changing the fluid, all pipes, ABS ECU, tyres and rims at the same time cos it's safety innit!

What a refreshing change

That's because we ain't kwikfit init bro.

harveybobbles

Buy a Yaris - they only have brakes on the front..

Joe_Horner

JustinR1979 wrote: »

Can you show me where this has previously been posted so I can feel refreshed to?

Ok, so I may have exaggerated a little (although it gets close to that on Pistonheads sometimes!)

FiremanDave wrote: »

That's because we ain't kwikfit init bro.

Good point, athough if you say their name twice more then their company rep may be along to help with your concerns

FiremanDave

Joe_Horner wrote: »

Ok, so I may have exaggerated a little (although it gets close to that on Pistonheads sometimes!)



Good point, athough if you say their name twice more then their company rep may be along to help with your concerns

Kwikfit
Kwikfit
Kwikfit

londonTiger

to be honest, if I were you I'd get the entire axle chnaged if any one of them is on 2-3mm. That's because they're going to need changing sooner or later, and brake pads can wear unevenly. So if it's 2-3mm from the top it could be 1-2mm on the bottom or down to 0.5mm on the other pad behind the disc - most cars you cant seen the inner pads without taking the wheel off.

A new pad is 14mm at the very least, it's not worth risking it just to get that tiny bit of use out of 2mm pad. Also if it gets down to the metal then you'll have to change the disc and discs are 2-3x the cost of pads.

FiremanDave

londonTiger wrote: »

to be honest, if I were you I'd get the entire axle chnaged if any one of them is on 2-3mm. That's because they're going to need changing sooner or later, and brake pads can wear unevenly. So if it's 2-3mm from the top it could be 1-2mm on the bottom or 0.5mm on the pads on the inside - most cars you cant seen the inner pads without taking the wheel off.

A new pad is 14mm at the very least, it's not worth risking it just to get that tiny bit of use out of 2mm pad. Also if it gets down to the metal then you'll have to change the disc and discs are 2-3x the cost of pads.

I'd stick with discs and pads, changing the axle is ott in my opinion.

londonTiger

Joe_Horner wrote: »

Wow! 8 hours and 10 posts into a thread about brakes, and so far no-ones posted that you must do the pads and disks together (all 4 wheels, of course) and should consider changing the fluid, all pipes, ABS ECU, tyres and rims at the same time cos it's safety innit!

What a refreshing change

Discs wear out extremely slowly. You can change the discs as well if you want but it's a waste of money. Instead just change the pads and run you fingers along the disc to ensure it's not too rough.

If you're changing pads only, I'd recommend doing 1 axle at a time so that the new pads wear down to the wear of the old disc one axle at a time.

FiremanDave

londonTiger wrote: »

Discs wear out extremely slowly. You can change the discs as well if you want but it's a waste of money. Instead just change the pads and run you fingers along the disc to ensure it's not too rough.

If you're changing pads only, I'd recommend doing 1 axle at a time so that the new pads wear down to the wear of the old disc one axle at a time.

Do what?

Just go steady if you do front and rear until they bed in.

Ebe_Scrooge

FiremanDave wrote: »

Kwikfit
Kwikfit
Kwikfit

Candyman
Candyman
Candyman :rotfl:


To get back on topic ...

Pads are a consumable item. Discs less so, unless you've let the pads run down so far that it's metal-on-metal. But discs *will* need changing at some point.

If you're changing the discs, then definitely put new pads on at the same time.

But as I said earlier, both pads and discs are cheap and very easy on most cars ( yes, I know some cars can be real pigs, but in general ! ), and shouldn't cost much at all if you avoid the cowboy outfits.