05-26-2015, 06:08 PM | #23 | |
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as far as using the fluid later.... great question but unfortunately i don't know the answer. i know that usually once opened you shouldn't keep it on the shelf indefinitely because (i believe) it can imbibe water from the air and corrupt the fluid. if it's well sealed it may be okay though... but don't take my word for it. there are instruments to measure the water content in the fluid. the stuff (except the highest end stuff) isn't THAT much, so i usually toss the remainder and start with fresh stuff next time. if you plan on burning through a set of pads in a few weekends (causing the fluid to lower dramatically) you could probably close it off and use it top up the fluid at that time. that's just me trying to use logic and no real data, though. sorry i don't have a better answer!
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05-26-2015, 06:32 PM | #24 |
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Yeah, I removed the filter. It comes out pretty easily. I just slid in a very tiny screwdriver on the side and then just popped it out, working with the screwdriver around the filter a little. No force applied really.
In the end I just put it back. What I had trouble with is reading the level of the fluid through the reservoir wall. I tried lighting it with the phone flash from various sides with little success. I ended up filling until the lower end of the filter, which was the level that I started with. |
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05-26-2015, 07:48 PM | #25 |
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good call. i had that flashlight sitting on top which made it easier but it's still is tricky to see. glad you had success!
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05-28-2015, 02:02 PM | #26 |
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Noob here, If I track my car about 3x a year should I be doing this? does the Service department bleed the brakes at any time?
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05-31-2015, 10:13 PM | #27 | |
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you can try the stock pads and see how they do but i would expect some fade if you're pushing it much, running longer sessions, running MDM traction control (it applies brakes to help you, i believe), or if your braking techniques need work (longer braking zones usually keep the pads hotter, if you brake much harder but over a shorter period of time they shouldn't fade as fast from my experiences). you can always shorten your sessions a little by pitting in early or just practice brake maintenance to stay out there longer (e.g.: don't go as fast on the straight sections of the track so you don't need to brake as hard for the next turn and give them a chance to cool off a bit). good luck with your decision, i hope this helps!
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06-01-2015, 06:29 AM | #28 |
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The wheels are 102.5 lb/ft (corresponding w/the 14x1.25 bolts) - confirmed by BMW. Still surprises me this information is not in the owner's manual.
Not sure they publish a torque spec for the bleeder screws. I'm sure it's in inch/pounds (or the metric equivalent). I always tighten them to snug, given they're usually a soft materiel and easy to potentially damage. Re: Self-bleeding on these cars. I was having trouble w/my last car (E90 M3) after boiling fluid at the track. I couldn't get the pedal feel back w/my Motive power bleeder. I took it back to the dealership and discovered that the ABS servo can only be cycled via ECU plug-in to get all the fluid flushed. Also, they use a system that pulls a vacuum on each caliper, which works quite effectively. Although, if you have them use your own fluid (Motul RBF 600), I think they do it the old fashioned way - but still cycle the ABS servo. Nice write up! |
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06-01-2015, 06:30 AM | #29 |
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I have been using the stock fluid on all my ///Ms since 2001 at the rate of 16~20 track days per year without any issues. I have the stock fluid flushed by the dealer once a year at the start of the track season. There is a good cost benefit in that you get 2 flushes for free as part of regular maintenance. Further, my dealer also has been accomodating by sometimes not charging for the in-between flushes.
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06-01-2015, 10:12 AM | #30 | ||
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06-01-2015, 10:13 AM | #31 | |
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06-02-2015, 06:37 AM | #32 | |
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06-08-2015, 01:03 PM | #33 | |
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My dealership is very reasonable, they charge $105 for oil changes. For brake fluid, they charge $127. The recommended standard interval is once every 2-yr. A Motiv pressure bleeder is $50 and Ate Typ 200 is $15. The ROI and convenient factor is there. Fluid specs below: Ate TYP 200 - Dry 536*F / Wet 392*F BMW OEM - Dry: 446*F / Wet: 311*F I splurged on the Motiv Black Label (pro grade) so I can help my track buddies w/o worrying wear and tear to the cap. You are correct. Even the highest performing fluid will degrade as they absorb moisture. Moisture in the air will dilute its ability to hold a high boiling temp.
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06-08-2015, 01:07 PM | #34 |
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06-08-2015, 01:19 PM | #35 | |
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Stock brakes will do if you go out 1-2 weekends per year.
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06-08-2015, 02:29 PM | #36 | |
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I have been tracking at the rate of 16~20 days per season starting since 2002 with my E46, a single flush per year at the beginning of the season has been proven sufficient for me. However, some tracks can be tougher on brakes, so if one does experience a soft/long brake pedal, more frequent flushes may be needed.
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06-08-2015, 02:34 PM | #37 |
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Brakes are not covered under the standard maintenance program, you have to purchase the extended program (Service Inclusive Plus) to include some of the consumable items such as brakes.
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06-08-2015, 02:39 PM | #38 | |
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06-08-2015, 02:45 PM | #39 | |
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See screenshot below from the BMW.CA website: EDIT: Just checked the US site. So yes, confirmed difference between BMW US and Canada. Sorry for the confusion.
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06-08-2015, 03:10 PM | #40 | ||
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06-08-2015, 06:45 PM | #41 | |||
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06-08-2015, 09:11 PM | #42 |
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Here is tip if have pressure bleeder and just want to bleed the brakes in couple of minutes before your next track day and not have the PITA messy bottle to clean up.....
Use the Pressure bleeder to pressurize the system without putting any fluid in the bottle and bleed the brakes. Then use a clamp to clamp off the hose when depressurizing the bottle and this will keep Fluid from traveling back into the Pressure bottle. Remember to add to fluid back in the reservoir. |
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06-08-2015, 10:48 PM | #43 | ||||
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Defect examples are brakes not seated correctly, warped rotors, squealing, etc.
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06-09-2015, 08:46 PM | #44 | |||||
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