Quote:
Originally Posted by jdd
You’ll find the brake bias on cars with ABS favours the rear wheels a lot more than cars without ABS. This causes the rear pads to wear much quicker, proportionally to the front compared to older cars without ABS.
The style and type of driving also affects brake pad wear; while you may drive like a grandma, if it’s in a lot of stop start traffic this might account for the high wear.
Also, the type of pads used is probably the biggest influencing factor to pad wear.
With a 50/50 mix of city and highway driving using OEM pads in an auto (driving sensibly), you should be able to get at least 70K miles from a set of pads (front and rear).
BTW, make sure you grease the calliper slide pins with the correct grease when changing pads as not doing this can cause excessive pad wear.
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Point 1: You can't change physics. The front brakes do most of the stopping, due to weight transfer. ABS doesn't change that. If it did, stopping distances would be much longer with ABS. ABS shouldn't be intervening much anyway. The only way the rears would wear faster from stopping is if you drove in reverse more than forwards, or put a much softer pad on the rears. What can wear the rear brakes is the traction control, as it will intervene on the rears more than the fronts.
Point 2: Never grease the slide pins. BMW service manuals specifically instruct that the pins are always to be dry, due to the design of the sleeves. Clean them, and ensure the dust caps are in good condition, but don't grease them. Only apply high temperature grease to the ears of the pads where they touch the calipers.
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