Excessive Brake Wear

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Deleted User 3629

Post by Deleted User 3629 »

My understanding is two fold - regeneration capture on the rear brake and more level braking rather than the front dipping

eugen61
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Post by eugen61 »

Oldie wrote: Fri Jul 08, 2022 6:33 am My understanding is two fold - regeneration capture on the rear brake and more level braking rather than the front dipping
There’s no regeneration capture argument for this thread, the OP’s car is T4 AWD.
Deleted User 3629

Post by Deleted User 3629 »

Oh OK :shock: - wonder if regeneration is on B4's as their seems to be more wiring around that area ;)
Felindre
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Post by Felindre »

The 'braking regeneration' is misleading. It doesn't in any way use the brakes, but increases the alternator charging which has the effect of more engine retardation or 'braking'. It might I suppose lighten the physical braking on the front wheels to compensate for the engine braking on the front (even on the AWD I would imagine under braking it wouldn't be engaging the rear drive)

This applies equally to the old 12v stop start, and the new B series 48v
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JFDIT
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Post by JFDIT »

Don't forget the rear brakes are part of the various stability control systems.
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Deleted User 3629

Post by Deleted User 3629 »

There is one sure fact, when it comes to the rear brakes on an XC40 - it eats through brake-pads like tiny-Tim on a Christmas ham.
KeithR56
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Post by KeithR56 »

Excessive brake wear is not exclusive to XC40. My last car was a mk1 XC60 and needed new rear disks after 35k miles of gentle driving. Front brakes were fine. No fancy auto hand brake on that model.
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Wil98
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Post by Wil98 »

My xc40 has just gone in for it's 2nd service. Told it needs new discs and pads on the rears. The fronts are like new.

I don't use cruise control, its a manual with no brake regeneration. I turned off stability control months ago.

20k miles.

No decent explanation from the dealer apart from just wanting to book it in for the brakes replacements.

Not good.
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Greggspies
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Post by Greggspies »

I've noticed the lack of nose diving on heavy braking so I guess the rear brakes are doing most of the work. Front brakes on mine look new too after 10,000 miles.
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Grumpyfrog
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Post by Grumpyfrog »

I know I am the newbie on here but I am on my 4th Volvo.
I had a similar problem on my ex V90, in that the rears wore more than the fronts.
It was not excessive but a mechanic at my Volvo dealer said it was quite normal. His reasoning was, as mentioned before, the hill hold but he also offered that if you use adaptive cruise contro,l it is the rears that are mainly used to slow the car down.
If the O.P. uses neither the hill hold or adaptive c.c., then ????
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