08-13-2020, 04:13 PM | #67 | |
Private First Class
65
Rep 126
Posts |
Quote:
I use one like the OTC 7034, but I've never tried it on calipers that don't get removed for a pad replacement. Perhaps something like the "Five Bananas" unit will work better for the Sport/Performance calipers. |
|
Appreciate
0
|
08-13-2020, 04:25 PM | #68 |
Great Teacher
1086
Rep 1,305
Posts
Drives: 06 e91 325ix
Join Date: Aug 2015
Location: El Paso
|
If you crack the valve you hav3 to bleed the brakes. This way you don’t. It is also less messy.
Note: If you don’t top up between pad changes, and you Shouldn’t!, it can’t overflow. Period. If you have a single piston caliper, like 330/312/300 rotors do, you can use a 8-9” c clamp (I think that’s what size mine is) To push the pads back before you even loosen one bolt. Put one side on the back of the caliper and the other on the front pad. Compress and it slides the caliper back over to start point compressing the piston for you. And giving lots of wiggle room to get it off easily.
__________________
‘06 e91 manual 325ix BarriqueRot
over Terra (one of 1), Nav, Sport, L7 A few OEM+ mods: MTech front bumper, MSport wheel & handbrake, 4AD trim, full rear shades, more to come… |
Appreciate
0
|
08-14-2020, 03:48 AM | #69 |
Private First Class
106
Rep 128
Posts |
Also, those bleed nipples do love to sheer off. And then you're in a world of pain! Because I track my F80, and they get extremely hot, I actually have the main dealer do brake fluid changes so I don't have to touch the bleed nipple. If it shears off when they do it, that's their problem. If it shears off in my garage, I have to find a replacement caliper!
__________________
F82 M4 CP Retrofitted: HUD + CS Dash, Fully adaptive/HBA LED headlights, shadowline LCI taillights, KAFAS2 / pedestrian detection / Speed Limit Info / Front Collision Avoidance, Fullscreen CarPlay / ID6, latest iStep. Mods: Carbon diffuser. Carbon side skirts. Bootmod3 Stage 2. BMS intakes. Decat downpipes. AA midpipe. Custom exhaust with akrapovic tips.
|
Appreciate
1
Onizukachan1086.00 |
03-22-2021, 06:29 AM | #73 |
Private First Class
106
Rep 128
Posts |
If you mean the wear sensors, nope. Just be careful getting them out of the pads as they become brittle with the heat and damage easily.
__________________
F82 M4 CP Retrofitted: HUD + CS Dash, Fully adaptive/HBA LED headlights, shadowline LCI taillights, KAFAS2 / pedestrian detection / Speed Limit Info / Front Collision Avoidance, Fullscreen CarPlay / ID6, latest iStep. Mods: Carbon diffuser. Carbon side skirts. Bootmod3 Stage 2. BMS intakes. Decat downpipes. AA midpipe. Custom exhaust with akrapovic tips.
|
Appreciate
0
|
03-22-2021, 10:20 AM | #74 |
Private
5
Rep 54
Posts |
|
Appreciate
0
|
03-22-2021, 01:24 PM | #75 |
Captain
432
Rep 785
Posts |
Thanks so much for a great writeup. As someone who has been tackling more and more of my own maintenance jobs but has never done brakes, it's extremely helpful. To me this is the kind of task that isn't so complicated, but has a few important points that aren't really addressed in the maintenance manuals because they assume the reader is experienced. Threads like these hit all of those points and give folks like me the confidence we need to do it and the info we need to do it right. I'm betting I will need to do new pads and possibly rotors before long. Many thanks for the guide.
__________________
335i rwd auto, 2015 with m performance LSD and Dinan stage 2. Cts charge pipe, mad 5" stepped intercooler.
|
Appreciate
0
|
03-23-2021, 05:52 AM | #76 |
Private
5
Rep 54
Posts |
Yellow stuff + Discs
@Daggers
How do you find the yellow stuff pads over OEM? + what make of discs do you use ? Are they all from EBC ? I have the m sport blue brakes Thanks again and it’s an excellent write up |
Appreciate
0
|
04-04-2021, 01:40 AM | #77 |
Private
5
Rep 54
Posts |
Caliper dust boot replacment
Has anyone done this on the 4 pot Brembo's? If so is it difficult to do with the caliper on the car? The part is listed in realoem.
Thanks |
Appreciate
0
|
05-20-2021, 11:16 AM | #78 |
Major
446
Rep 1,369
Posts |
Thanks @Daggers for the tips. I referenced this DIY doing my first Brembo 4-piston brake job. In my case I ran into some challenges. The first one, how do I sneak a QuickJack into the garage so my wife won’t notice. This problem remains unsolved so I used jack stands.
Like always, not instructions here. Just a diary of how I managed to avoid serious injury while maintaining my own car. I am not a mechanic. Use at your own risk. Given the jack stand part is the most dangerous, can there ever be enough info passed on about the importance of using them? As mentioned in the DIY, you want the entire front of the car up so you can use the opposite side wheel to turn the steering rack so that the caliper you are working on points out, away from the car. Attempting to turn the steering rack with one side leaning on the ground is going to make your life tough because 425kg of car is leaning on a nice wide grippy tire opposite to the side you’re working on. And let’s face it, you want to buy new jackstands so use this an excuse. Finding the front jack point / jackstand placement You need to research this carefully as it might be different for xDrive vs. normal (i.e. RWD) cars. I have an xDrive car and you can see in the photo where my jack point target it. Do not use the plate behind that point to jack up the car because that’s an extensive mistake if you’re wrong. Instead of paying off my mortgage I used a couple of home made plywood ramps to get the car into the air so I could clearly see where the jack needed to go. While on the wooden ramps, I crawl under the car (because one needs to do unsafe things to make a point about safety), positioning the jack right on target. Using another piece of wood (value in 2019: $0.90, value in 2021: $90.00) as a jack pad to prevent scratching the car, I jack the car up to roughly the height of the jack stand plus 1~3 clicks of the support. I then move the jack stand under the one of car's 4 jackpads then move the jack stand support into the pad. This makes it easier to get the car right on the support rather than play rocker panel destruction (plus optional door gouge) roulette. Alt tools? I found the perfect sized punch tool for the job on Amazon. The Mayhew tools 21510 (4mm). This tool is not called ‘punch tool’ but called ‘21510’. Maybe it’s a punch tool professional code or something but yeah, it’s called 21510 and that’s it. How the hell did I find it? A global pandemic makes for a lot/lot of wasted time. I also used the Lisle 29100 Quick Quad Pad Spreader, which actually works on single and dual piston calipers as well. It’s like getting 3 tools in one. Got 6 pistons? Probably need another tool. You will still need a pry bar/screw driver to move the brake pad off the rotor but once the old pads are out, spreading the pistons with this tool is very easy. Brake pin alignment? It seems getting the brake pins out was ‘easy-ish’ (breaking/disassembling stuff is always easier) but getting them in and matching up all holes was a bit challenging. I found using the punch tool and matching it with the pin made the job of alignment easier.
__________________
340i xDrive (F30), 228i (F22), 320 (F30), 325i (E46)
Last edited by casualDIYer; 05-20-2021 at 11:50 AM.. Reason: error |
Appreciate
2
imperfectluck426.50 julian20420.50 |
08-11-2021, 10:39 AM | #79 |
Enlisted Member
8
Rep 44
Posts |
Hey all, I read the whole thread. Excellent post Daggers!
Anyway, I'm a torque guy. I want torque specs. lol. Thanks for the torque specs for the front. Do you have them for the rear brake job? All my calipers are way past being shitty, haha. I bought a 2019 Gran Coupe with perf pkg used, must of been sitting in a lot for a while and all the rotors were completely trashed...I've lived with them for about a year, but they're soooo bad now I can't stand it. Anyway got myself a full set of Brembo discs and Hawk HPS 5.0 pads (hopefully the right choice, so many opinions out there). Anyway, rambling done, torque for the rears would be awesome. Rob
__________________
<OO-(||||)(||||)-OO>
Rob Current Money Pits: 2019 BMW Gran Coupé | Automatic || 2017 Shelby GT350R | Manual Sold: 2019 Volkswagen Golf R | Manual || 2013 BMW 135i M Coupé | Manual |
Appreciate
0
|
08-11-2021, 11:10 AM | #81 |
Private First Class
103
Rep 193
Posts |
Ignoring the fact your question is three years old at this point, I just did my replacement brake job and saw the markings you mean. Those are for the manufacturer of the pad, to make sure the metal retainers aren't assembled backwards.
|
Appreciate
0
|
09-17-2021, 04:56 PM | #82 |
Enlisted Member
8
Rep 44
Posts |
K, I feel like an amateur when asking this (I have replaced rotors and discs before)...but I just downloaded the service manual and it says to "Replace Screws!" ....referring to the caliper bracket bolts (the 110 Nm bolts).
Yes with an exclamation mark. Do you guys actually do this? I've never done this on any of my cars. R
__________________
<OO-(||||)(||||)-OO>
Rob Current Money Pits: 2019 BMW Gran Coupé | Automatic || 2017 Shelby GT350R | Manual Sold: 2019 Volkswagen Golf R | Manual || 2013 BMW 135i M Coupé | Manual |
Appreciate
0
|
09-19-2021, 11:28 AM | #83 |
Great Teacher
1086
Rep 1,305
Posts
Drives: 06 e91 325ix
Join Date: Aug 2015
Location: El Paso
|
Negatory. Unless they are crusty I simply reuse. It’s never a bad idea to have a spare on hand in case one snaps or rounds out and you have to drill it out though.
__________________
‘06 e91 manual 325ix BarriqueRot
over Terra (one of 1), Nav, Sport, L7 A few OEM+ mods: MTech front bumper, MSport wheel & handbrake, 4AD trim, full rear shades, more to come… |
Appreciate
0
|
09-19-2021, 03:53 PM | #84 | |
Enlisted Member
8
Rep 44
Posts |
Quote:
Just did an entire brake job on a 2019 440i Gran Coupe xDrive, M-Sport Brembo brakes. Took me about 6 hours lol. The fronts were pretty easy peasy…literally two bolts. But Holy Moses, the back was a mess. Getting those caliper mounting bolts out was a nightmare cause they were so gummed up with the factory “3M ThreadLocker”, the manual says to replace them cause they’re stretch bolts, but no thanks, I really don’t see a point replacing M12 bolts and the new ones will be just as f’d up getting them in and out the next time. I cleaned up real nice, sprayed some Loctite 6649 (Activator - Surface prep) and some Loctite Blue (242 — this is important, not 241 like Cantire sells, 242 is higher heat resistance, oil resistant, higher water resistance, and stronger, and especially stronger with the 6649, I believe the Loctite tech docs say 25% stronger, and it is as I’ve taken bolts out with and without the prep). Anyway, torqued the rear M12 bolts to 110 Nm just like the front and called it a day. Most messed up brake job I’ve ever done. On the back I literally had to stick a small pry bar in between the pad and old rotor to move the piston back so I could pull the pads out. On top of that I could only do this on the outside pad on each back caliper. Both inside pads had rusted so badly that they were fused to the caliper and the backing plate literally came off the pad when I tried to pry it out. I scrapped all the gunk off the caliper pad slide surfaces and brake cleaner like mad and scrubbed with a small stainless wire brush. They got nice and flat again and I lubed em up nice. New pads slid in perfectly. Is this normal? Is that why Daggers recommends a small pry bar? Anyway, great write up, used this with the service manual. Helped a lot. Car handles soooo much better it’s not even funny. I’m still hesitant to touch my brake pedal cause I’m so use to the car shuttering and I hate the feeling lol. But stops so smooth and nice. For reference I got Brembo Rotors: 2X116-3698-8 @ $ 134.990 ea. 09.C401.13 BREM $ 269.98 2X113-7723-0 @ $ 142.490 ea. 09.C399.13 BREM $ 284.98 And Hawk Performance HPS 5.0 Pads: Hawk Performance HB765B.664 - Disc Brake Pad - (HPS 5.0 w/0.664" Thickness) CAD$204.95 Hawk Performance HB766B.624 - Disc Brake Pad - (HPS 5.0 w/0.624" Thickness) CAD$189.67 This is for M-Sport (blue calipers) and is in Canadian dollars. Rob |
|
Appreciate
0
|
09-19-2021, 06:41 PM | #85 |
Great Teacher
1086
Rep 1,305
Posts
Drives: 06 e91 325ix
Join Date: Aug 2015
Location: El Paso
|
Not at all. I had 0 issues removing my 312/300 when I upgraded to 340/330 last year at 60k+ miles.
__________________
‘06 e91 manual 325ix BarriqueRot
over Terra (one of 1), Nav, Sport, L7 A few OEM+ mods: MTech front bumper, MSport wheel & handbrake, 4AD trim, full rear shades, more to come… |
Appreciate
0
|
09-19-2021, 08:54 PM | #86 |
Enlisted Member
8
Rep 44
Posts |
|
Appreciate
0
|
09-25-2021, 03:36 AM | #87 | |
Private First Class
65
Rep 126
Posts |
Quote:
|
|
Appreciate
0
|
09-25-2021, 12:57 PM | #88 | |
Enlisted Member
8
Rep 44
Posts |
Quote:
R
__________________
<OO-(||||)(||||)-OO>
Rob Current Money Pits: 2019 BMW Gran Coupé | Automatic || 2017 Shelby GT350R | Manual Sold: 2019 Volkswagen Golf R | Manual || 2013 BMW 135i M Coupé | Manual |
|
Appreciate
1
1bad14-F3030.50 |
Post Reply |
Bookmarks |
|
|