318D brake pad wear

318D brake pad wear

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Cheapstraitsix

Original Poster:

269 posts

139 months

Thursday 23rd March 2017
quotequote all
My (so far) trusty daily steed is a late 2011 318d currently on 117k.

One previous private owner whom had the car main dealer serviced regularly.

The thing that's grabbed my attention is it seems to be on original front pads, however seems to go through rear pads and discs every 40k.
Had rear discs and pads 17 months ago and the service computers states the pads only 4K left in them , whereas the original front still have 11k.

No signs of sticking calipers etc. Brakes have always been done by main dealer so not cheapie parts.
Also fairly confident the front pads wouldn't of been done outside the dealer network.

I would have thought the wear rate would have been on the fronts more not the rears.
Just me?

helix402

7,856 posts

182 months

Thursday 23rd March 2017
quotequote all
Rears are applied by dsc to stop wheel spin etc.

trickywoo

11,750 posts

230 months

Thursday 23rd March 2017
quotequote all
Traction control was my thought on the rear brakes too.

117k on the front pads is going some and suggests lots of motorway journeys.

Cheapstraitsix

Original Poster:

269 posts

139 months

Thursday 23rd March 2017
quotequote all
Never even crossed my mind, but makes perfect sense.
would that not result in some fairly uneven n/s o/s pad wear? With it obviously being an open diff I assume it's only braking on one rear wheel at any given time.

Indeed the previous owner used the car to travel Europe for work, my commute is mainly nightwork motorway commutes.
Easy life for it really.

anonymous-user

54 months

Thursday 23rd March 2017
quotequote all
Very unlikely to be DSC imo unless the car's really being hammered around. Does it have active cruise? The rear brakes are used to slow the car on hills.




helix402

7,856 posts

182 months

Thursday 23rd March 2017
quotequote all
Op has a 4 cylinder:


Locknut

653 posts

137 months

Friday 24th March 2017
quotequote all
I think you should physicaly check the pads rather relying on a computer read-out. That's what millions of motorists did for over a hundred years before condition based servicing came along.

In my case I got a message on the dash that the front pads were due renewal in 5k miles. I checked the pads and found all four had 9mm of pad thickness left. Obviously the computer is wrong,

PDP76

2,571 posts

150 months

Friday 24th March 2017
quotequote all
Yeah the computer is a bit over enthusiastic with brakes in my opinion. Guideline only, visual check is always best.
Even the brake wear warning light on my other halfs mini is on. Its been on almost a year now. Loads of meat left on them vs her mileage when the light first came on.

Cheapstraitsix

Original Poster:

269 posts

139 months

Friday 24th March 2017
quotequote all
I was more curious about the reason behind it rather then if my pads were about to go metal to metal.
Obviously it's in BMW's best interest to make the sensor trigger early but I still think 40k is a reasonable interval.
Not something il be doing but makes me wonder if ignore the front pad sensor how long they would last for.

PDP76

2,571 posts

150 months

Saturday 25th March 2017
quotequote all
That really all depends on your driving.