Comprehensive Brake Info Thread FRONT ROTORS 286 mm x 12 mm Solid 95-3/98 318ti 286 mm x 22 mm Vented 4/98+ 318ti E36 323 coupe, convertible E36 325 sedan, coupe, convertible E36 328 sedan, coupe, convertible E46 323 sedan, coupe Z3 2.3, 2.5, 2.8 coupe/roadster 300 mm x 22 mm Vented E46 323 convertible, touring E46 325 sedan, coupe, convertible E46 328 sedan, coupe Z3 3.0 315 mm x 28 mm Vented E36 M3 sedan, coupe, convertible Z3 M Coupe Z3 M Roadster 325 mm x 25 mm Vented E46 330 sedan, coupe, convertible 325 mm x 28 mm Vented E46 M3 coupe, convertible 345 mm x 28 mm Floating/Vented E46 M3 Competition Package (US) E46 M3 European REAR ROTORS 272 mm x 10 mm Solid E36 318ti (all) Z3 (all non M models) 280 mm x 10 mm Solid E36 323 coupe E36 325 sedan, coupe, convertible E36 328 sedan, coupe 276 mm x 19 mm Vented E36 323 convertible E36 328 convertible E46 323 sedan, coupe 294 mm x 19 mm Vented E46 323 convertible, touring E46 325 sedan, coupe, convertible, touring E46 328 sedan, coupe 312 mm x 20 mm Vented E36 M3 sedan, coupe, convertible Z3 M Coupe Z3 M Roadster 320 mm x 22 mm Vented E46 330 sedan, coupe, convertible 328 mm x 20 mm Vented E46 M3 coupe, convertible FRONT PADS Part # 34 11 6 761 242 or 34 11 6 761 244 E36 318 sedan, coupe, convertible, compact E36 323 coupe, convertible E36 325 sedan, coupe, convertible E36 328 sedan, coupe, convertible E46 323 sedan, coupe, convertible, touring E46 325 sedan, coupe, convertible, touring E46 328 sedan, coupe Part # 34 11 1 162 535 E36 M3 sedan, coupe, convertible M Coupe M Roadster Part # 34 11 6 779 652 E46 330 sedan, coupe, convertible Part # 34 11 2 282 416 E46 M3 coupe, convertible Part # 34 11 2 282 995 E46 M3 Competition Package coupe REAR PADS Part # 34 21 6 761 238 or 34 21 6 761 239 E36 318 sedan, coupe, convertible, compact E36 323 coupe E36 325 sedan, coupe, convertible E36 328 sedan, coupe NOTES: 1) E36 M3, M Coupe, and M Roadster (S52 and S54) FRONT parts will only fit with the ///M spec spindles on all E36 318, 323, 325, 328 models. 2) The only upgrade for the rear of the 318ti is by swapping in the entire rear of a M Coupe or M Roadster (spendy). 3) Most all E36 and E46 non M models have front interchangeability. Meaning with the proper caliper and carriers any front kit will fit other models. Examples: E46 330 fronts on any E36 model E46 325 fronts on any E36 model 4) A note on Stainless Steel Lines -Understeer (Chris) made a statement that *all* E36 SS line kits should fit the same cars (6 piece kits), but I find it interesting that Turner Motorsport lists a separate 318ti category. Supposedly all E36 rear 4 line kits have the same part numbers. Anyways, the following are some of the popular kits available for our cars. UUC: $115 Tire Rack (Goodridge): $164 HMS Motorsport (Goodridge): $152 Bavauto: $120 Turner Motorsport: $129 5) 17" clears anything bellow 325mm; 16" rims clear anything below 300mm; 15" clear anything below 286mm 6) the 286mm vented and 300mm vented use the same caliper, but different caliper carriers -The thickness of the rotor is the same for the 286mm and the 300mm as well as the breaking surface. Same braking surface of the 286mm solid which means same pads as the 318ti. The only difference between the 286mm vented and the 300mm vented setup is the carrirer: on the 300mm the carrier is larger and relocate the caliper 7mm outer. 7) 286mm solid, 286mm vented, and 300mm vented use the same pads Credit to "lpcapital" from 318ti.org for helpful added notes. Thanks bud. :) |
Awesome write-up, very good info. Can we sticky this? Also, may I suggest listing the wheel sizes needed to clear the different brake upgrades? |
E46 M3 rotors fit the same size hubs/spindles as the E46 non-M cars. So the E46 M3 rotors fit without any modification needed. You would need a custom brackets to make M3 calipers fit. The UUC Wilwood brake kit for E36 cars uses E46 M3 rotors. |
Just a couple notes based on my research... 1) 17" clears anything bellow 325mm; 16" rims clear anything below 300mm; 15" clear anything below 286mm 2) for what it matters it's only the 323 sedan that has 286 front rotors; all other 323s (convertible, coupe, and touring) have 300mm front rotors 3) the 286mm vented and 300mm vented use the same caliper, but different caliper carriers 4) 286mm solid, 286mm vented, and 300mm vented use the same pads 5) I think that no rear brakes are compatible with the 318ti/Z3 hub; you can swap in the ///M roadster/coupe rotors, but it requires replacing the wheel hub; I was told, but never confirmed, that E46 rear bares would fit if the parking brake shoes are removed (I can't confirm nor deny this). 7) I'm not sure that rotors will actually be swappable between models as the hub/offset might be different. For example, although the Z4 2.5 and the Z3 2.3/2.5i/2.8 used the same calipers & carriers for the 286mm setting, the rotors p/n for the Z4 is different form the Z3... 8) If I may suggest, I would actually reverse the chart in the sense of putting the rotor size as title and the compatible models below. |
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And thanks for the sticky Steven, I hope this helps some others out. |
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Thank you for the detailed input. I will add that the E46 323 sedan has the smaller brakes vs the coupe/convert. As far as wheel size, I wonder if a 15" wheel would fit under a E46 325 300 mm rotor? Didn't 15" come stock or was that just in the early E46 base sedans? To be safe, for sure use 17's with any E36 M3, M coupe, M roady, 330 front brake upgrade. *Some* 16's fit, but it's not worth the effort imo. So the E46 325 with the 300 mm vented has the exact same caliper as all E36 325/328 models? Good info. I am currently looking at a great condition used set of E46 325 calipers/carriers for under $100. I assume I will just order the 300 mm vented E46 blanks for front rotors. By assume, I mean I doubt the 286 mm vented fit right? EDIT: It seems the 323ci coupes do not use the 300 mm larger front rotors. The only 323 E46 models to do so are the convertible and the touring. EDIT(2): I took your advice and totally redid the chart. This has taken me some time, so I hope all of you get some use out of it. |
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I didn't go any larger than 300mm cuz I have 16" on my Z3 and not planing to go any bigger, so 300mm was all I could fit. However keep in mind that going any larger in the front would probablly mess up the front/rear bias and known working options for the rear are limited to the ///M roadster. This upgrade, however requires replacing several other parts in the rear axle as well as the master brake cylinder that on the ///M is bigger. If you touch the mater cylinder, the bleeding would require using the GT1 to activate the ASC pump... On day I would like to remove the rear brakes from the Z4 and see how they fit on the Z3. I'm just curious to see if there's any way to make it work. Quote:
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Thanks again for more info lpcapital, I referenced you in the thread. :) I just added front brake pad info, will do rears tomorrow. :) It is pretty cool to know how many models of front/rear pads work for our little ti's. Opens up the market for buying good pads tenfold. |
Just thought I'd throw in my observations.. I'm running the vented 300mm E46 325i Calipers/Carriers. I bought standard E46 325i rotors and they fit just fine. I run 16" E36 Sport Package wheels and there's about 3/16" of clearance, so if you go that route kiss cheap 15" tires goodbye. |
^ Thank you for your input. |
Will an e46 16" spare fit under a 96 ti? I am getting ready to put the 300mm rotor setup on my 96 Sport and I am wondering if the 16" spare wheel/tire from an e46 325/328 will fit the spare tire tray/mount under my car? My 15" tire is shot anyway. |
Some guys with Jeeps are using a little different trick, Use bead adhesive (Tire shops that do tractor tires should have it). Mount the tire up using the adhesive and pump it up and let sit over night. Deflate the tire and it will "mush" into the spare tire tray. Carry a can of compressed air to fill it up when needed. Dave |
all this and still can't find if Ti calipers are specific or interchangeable with 323 325 328 |
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95-3/98 318ti 286 mm x 22 mm Vented 4/98+ 318ti E36 323 coupe, convertible E36 325 sedan, coupe, convertible E36 328 sedan, coupe, convertible E46 323 sedan, coupe Z3 2.3, 2.5, 2.8 coupe/roadster I'm pretty sure the spindles on the ti didn't change over the production run, so the list above answers your question. Any of the E36 front calipers, except the M3, should bolt right up to the ti spindles. You'll obviously need the vented rotors but that should be it. |
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