Changing brake pads
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Discussion

theboyfold

Original Poster:

11,481 posts

257 months

Monday 2nd September 2013
quotequote all
So I'm thinking about changing the pads and disks on my E36 328 and would like to do it myself. What should I have to support the car when I have the wheels off? I'm guessing the standard jack for changing wheels isn't the best thing to use?

northwest monkey

6,370 posts

220 months

Monday 2nd September 2013
quotequote all
theboyfold said:
So I'm thinking about changing the pads and disks on my E36 328 and would like to do it myself. What should I have to support the car when I have the wheels off? I'm guessing the standard jack for changing wheels isn't the best thing to use?
Definitely not. Axle stands will do it or an old spare wheel at a push.

You might want to use a trolley jack to hold the caliper up in the air while you take the disks off so it's not dangling by the flexi hose. I'm not particularly mechanical minded but I did this on an E46 & it took about 2 hours tops.

amancalledrob

1,248 posts

165 months

Monday 2nd September 2013
quotequote all
Ideally, axle stands, although at a push I'd use a trolley jack and put the removed wheel under the car near it just in case the worst happens.

I wouldn't class myself as anything more than a competent amateur with a spanner, so make your own decision about the quality of my advice smile

J4CKO

47,050 posts

231 months

Monday 2nd September 2013
quotequote all
I use Axle stands, as is traditional, if I am going under it I put my ramps under it as well with a stout plank between them, having been under a car (on stands) that an old lady reversed into I take no risks, said old lady, when I asked her politely what she was doing said I shouldnt hide the car behind the hedge and what did I expect !


LooneyTunes

9,503 posts

189 months

Monday 2nd September 2013
quotequote all
Word of caution: if you're doing this on a tarmac surface, put wood under the stands to spread the load otherwise the weight borne by each stand will be concentrated on 3 relatively small points.

You can guess what might happen if you don't...

ETA: worth checking in advance if you need any sort of tool to wind the calipers back.

Ed.

2,176 posts

269 months

Monday 2nd September 2013
quotequote all
Another vote for axle stands and zip ties for holding callipers in place amongst other things

orangesrule

1,969 posts

179 months

Monday 2nd September 2013
quotequote all
They are so easy to do. I used the standard jack on mine, but lowered onto an axel stand too.

You'll need a 7mm allen headed socket attachment to remove the caliper bolts, also i found the rachet setup i had was too long, so also had to loosen off the bottom of the suspension strut (16mm socket iirc).

But once you know what your doing, it shouldn't take anymore than 15 mins per wheel.

Toltec

7,179 posts

254 months

Monday 2nd September 2013
quotequote all
Check the reservoir level it may overflow when you push the pistons back in. You may need to suck some fluid out with a syringe or bleed some out through a caliper. If the latter do it before taking the calipers off the car!

If the fluid is over a couple of years old it is worth bleeding the whole system through, I have never done it on an abs equipped car so check to see if there are any special requirements on the e46.

theboyfold

Original Poster:

11,481 posts

257 months

Monday 2nd September 2013
quotequote all
Thanks everybody. I'm rummaging though Amazon to find the bits and pieces that I need (I've been wanting to spend my vouchers on something).

As for the fluid, I will swap that out as well (or the garage will when they replace the brake lines).

road_rager

1,091 posts

230 months

Monday 2nd September 2013
quotequote all
One wheel off at a time, and chuck under sill plus jack. Axle stand a plus if you can. You'll need a braker bar to get caliper mounts off to do the disks. Careful with undoing bleed nipples as the snap real easy

road_rager

1,091 posts

230 months

Monday 2nd September 2013
quotequote all
One wheel off at a time, and chuck under sill plus jack. Axle stand a plus if you can. You'll need a braker bar to get caliper mounts off to do the disks. Careful with undoing bleed nipples as the snap real easy

waynedear

2,351 posts

198 months

Monday 2nd September 2013
quotequote all
Axel stands and don't forget to take the cap off the brake fluid.

chazola

459 posts

188 months

Monday 2nd September 2013
quotequote all
Definitely axle stands not just a jack if you're going to be doing discs, caliper bolts are usually bloody tight and you don't want any risk of the car shifting when undoing/doing them up.
If you're just doing the pads you can get away with just using the jack.
I find a pair of water-pump pliers (with plastic pads) perfect for pushing the pistons back in to get in new pads. Like others have said you might need to draw out some fluid depending on how worn the old pads are.

LooneyTunes

9,503 posts

189 months

Monday 2nd September 2013
quotequote all
chazola said:
If you're just doing the pads you can get away with just using the jack.
For the sake of adding ~a minute to the job, is it really worth not sliding a stand under?

By all means leave the jack in situ under the car if you must, but if it fails you might not get much warning...

theboyfold

Original Poster:

11,481 posts

257 months

Monday 2nd September 2013
quotequote all
Trolley jack, chocks and axle stands have been ordered. Plus a few other bits and pieces, and with my voucher what I ended up paying means that they will pay for themselves with just one brake swap (assuming I don't break everything!)

blueg33

46,882 posts

255 months

Monday 2nd September 2013
quotequote all
orangesrule said:
They are so easy to do. I used the standard jack on mine, but lowered onto an axel stand too.

You'll need a 7mm allen headed socket attachment to remove the caliper bolts, also i found the rachet setup i had was too long, so also had to loosen off the bottom of the suspension strut (16mm socket iirc).

But once you know what your doing, it shouldn't take anymore than 15 mins per wheel.
15 mins a side for me on the Outback and it was about the same on my E60, although rears take a bit longer.

Axle stands and zip ties here too.

lightthefuse

426 posts

203 months

Monday 2nd September 2013
quotequote all
Cannot overemphasise the bit about a clamp/zip tie for the callipers. Guess who ended up having to attempt to hold the bds by hand once, brake fluid pissing everywhere?

Do it right and it's an easy job. Do it like the above and expect it to take a while...

ETA... Axle Stands. Do not even think about just using a jack...

standardman

424 posts

199 months

Monday 2nd September 2013
quotequote all
Chocks are as important as what you Jack with !.

I have pushed a car of a stands and a Jack !.

amancalledrob

1,248 posts

165 months

Tuesday 3rd September 2013
quotequote all
Also if you find the caliper bolt has seized (they get heated and cooled a lot) DON'T just apply more force or you could shear it and end up having to drill the remainder out of the caliper.

Don't ask me how I know this rolleyes

blueg33

46,882 posts

255 months

Tuesday 3rd September 2013
quotequote all
TBH Halfords Service centres do brakes for life and the cost of the initial job is very reasonable. They did the Audi last time for me using Audi parts for £150 all in, and will replace them free for life.

Despite the fact I can do brakes quite quickly, this was by far the easiest option, that way they have to sort out seized caliper bolts, safe jacking etc