Rotor wear on a 2011 D4

[niobe]

My D4 is just coming up on 40,000km. Mechanic has just said rear brakes are about to be fully worn and the rotors will also need replacing.

Pretty surprised at this as I would have expected the front to wear first, and 40,000km for rotors doesn't seem right. Anyone opinions?

[rocmic]

Don't know about the D4, but a quick look at my records for the 2008 D3 shows:
Front
30,000 Pads
72,000 Rotors and Pads
90,000 Pads
121,000 Pads
140,000 Rotaors and Pads (pads were done because rotors were done, the pads still had a bit on them)

Rear
30,000 Pads
78,000 Pads
121,000 Pads
133,000 Rotors and Pads (pads were done because rotors were done, the pads still had a bit on them)

I got the car as a demo with 6,500 km on the clock.

I may have missed a rear rotor replacement in that lot, 133000 seems a bit too good for the rear rotors, but I can't find any other replacement.

Hope this helps
Cheers
Mike

[niobe]

Thanks Mike, it does help, kinda confirms my suspicion that 40,000 is too soon, given the front pads have not been replaced.

Would be keen to gather some more data on this from other members.

[101RRS]

At around 48,000km everyone was saying my rotors needed replacing - and saying that on a RRS/D3 the pads and rotors needed doing as a set. At 68,000 I needed to do the pads so I measured the rotors - actually less that half worn so they stayed on.

It seems everyone just assumes that disks wear and need replacement with pads but they do not actually measure them to check.

Garry

[LGM]

My 2011 D4 has now completed 78,000km and I am at about half pad life along with rotors that are still within tolerance.

No doubt you guys are city centric with a lot of left foot time involved whereas I am country based with a lot of right foot time involved.

[LiamO]

Brake discs (Rotors) are normally only replaced if damaged by cracks or heavy score marks due to the worn pads touching the discs but the brake sensor should have appeared first on the D4. At my last Service (less than30k) they told me I needed both front pads and discs, but when I queried why I was told ‘they normally replace both at the same time”. Nevertheless, I declined their kind offer to sell me new discs. You should ask specifically why the rotors need to be replaced.

[Redback]

I have a 2011 D4, front pads have been replaced twice and rears have been replaced twice and once for rotors, car has 80,000ks on it.

We tow a lot, and we do a lot of offroad, so I expected ours to wear quicker, front rotors are still good though.

Maybe you or your partner use the brakes too much

Baz.

[scarry]

The rears often get chewed out with a lot of dirt road or sand driving.
Driving style also makes a massive difference to brake wear,as does towing.
Due to the long service intervals for these vehicles,the servicing organisations would err on the side of caution,or you could end up with worn out brakes before the next service.

My D4 has done 26k and the pads are no where near half worn.

[discojools]

My 2011 D4 2.7 is still on the original discs @90,000K.

[niobe]

So mechanic reckons he measured the rotors. I will now measure them myself. certainly the rotors have worn up to a millimetre, not more.

Not a lot of braking here in our 'city', certainly not compared to Sydney or Melbourne. But I will attach a camera to the car seat and see how the wife is driving..