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BMW 3-Series (E90 E92) Forum
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Replaced my brake pads in my 335!
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07-17-2012, 04:15 PM | #155 | |
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08-08-2012, 10:14 AM | #156 |
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Great DIY
I am getting ready to put new pads on my 335xi I have not hit the wear sensor so I don't think I will need to replace the sensor ? I am getting some from the seller for free so I will have them |
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08-08-2012, 10:48 AM | #157 | |
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BTW, you do not have to remove the caliper units, you just loosen the aluminum shear pins that hold the floating calipers, unsnap the anti-rattling springs, compress the pads, and your floating calipers will come out very nicely. You need to loosen the high torque bolts to remove the caliper unit if you intend to replace the rotors. I have seen e46 fanatics doing this in the field before the start of a "track" event. Theoretically if the tips of the sensors are not worn, you can re-use them; but in real life most likely you will break the metal clips when you yank them out, and once its flimsy metal clips are bent it is almost impossible to snap back in place again. I just replace them with new ones, one for the front driver side and one for rear passenger side. Use a strong flashlight and a thin flat head screw driver to guide the metal clips so it will snap in place. Since the the sensors are snapped unto the indentation of the pads, beware that some aftermarket brands are not truly made for BMW, so the sensors will not snap back firmly. I had very bad experience with EBC and Centric. Akebono on the other hand, was like a custom made to fit the oem ATE calipers, from its nicely machined back, riveted anti squeal shim and a very deep and nicely shaped pocket for the sensors to be snapped in.
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Sou fanático por conversíveis... Last edited by hookah66; 08-08-2012 at 11:08 AM.. |
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08-09-2012, 12:47 PM | #158 |
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It's not my first rodeo with pads but changed my fronts and seems put bit too much brake quiet. I think they hardened a bit before i put them in as well. Didn't realize it when I was putting everything together but ended up with pads rubbing a bit. Mpg dropped 20-25% right after the change. Took about 500 miles to clear(didn't want to take everything apart since i diagnosed it)
Moral of the story, be careful how much brake quiet you put on the pads. |
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08-17-2012, 08:12 PM | #159 |
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Using breaker bar and jack stands to limit for 16 mm bolts
I used a breaker bar to get loose the 16 mm caliber bracket bolts out. I also used jack stands, but had to raise the car as far as I could and even then I had very little clearance, but just enough to get a small rotation and had to rotate the 17 mm socket 1/6 or 1/5 so that I could get more of a turn (your 1/2 socket is square, your socket is pent or hexagon...geometry is fun) to break the bolts off.
Based on what I read here, tomorrow I will check that bolts are secured at 81 ftlbs and that I grease the guide pins. Awesome Dyi, cheers. Last edited by Pittsburger; 08-18-2012 at 05:19 AM.. |
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09-22-2012, 08:50 AM | #162 |
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Something i came across that might be helpful. DIY Video for Brake Pad, Brake Sensor and Rotor Replacement on an 06 e90,
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10-01-2012, 10:54 AM | #163 |
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Just did this on Saturday .. .word of advice ... access to air compressor and tools is a major ++++++++. Using an impact wrench, the bolts holding on the caliper bracket came off in a cinch! (replaced the rotors)
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12-13-2012, 09:15 PM | #164 | |
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Edit: Oh and I had to replace the rear sensor which was worn down (mine is pre-May 2010, not sure how it works on the later models). Looks like BMW pulled off a brilliant move here: Rear brake pads $81, new sensor $41, (about a 33% increase in parts price) AND you have to pull the wheel liner off to get at the connection to disconnect the old sensor and add a new one, AND there are about four clips you have to disconnect and reconnect to remove the old sensor wire, so this adds around ten minutes shop time if you are not doing it yourself.
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Last edited by Quasimodem; 12-19-2012 at 01:45 PM.. |
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12-25-2012, 12:19 AM | #166 |
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Very good introduction. Well, it is better to let the professional people to change it. The ceramic brake pad generally could running for 50000-80000 km. Qingdao Gihon Auto Parts Co.,Ltd is a very good brake pad manufacturer. Their brake pad raw material is import from USA, the friction dust is import from Japan. There are a lot of people in USA and Canada using it. I use the brake pad in my car too. If you want to know more info, please add my skype summerxu888
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12-28-2012, 01:00 PM | #167 |
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My Contribution for Spring-Challenged DIYers
Hope this helps.
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Last edited by Quasimodem; 12-28-2012 at 01:21 PM.. Reason: Improved Instruction Jpeg |
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02-05-2013, 10:10 AM | #168 |
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I used this as a guide when i did my brakes this weekend! Thanks for the post. Everything went real smooth
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03-04-2013, 04:42 PM | #170 |
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07/07 BMW 335xi [8.50] 2001 Honda CBR600F4i [0.00] 2007 Husqvarna SM610 [0.00] 2004 Chevy Tahoe Z71 [0.00] 2005 Harley Davidso ... [0.00] 2007.9 335xi [6.50] |
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03-04-2013, 05:03 PM | #171 |
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Guys I changed my rear pads and rotors over the weekend on my 330i. One issue that backed me up for a bit was the fact that one rotor was hard to come off from the hub since this was the originals. I forgot that the car has to be in N neutral and no ebrake in order to spin rotors and hit them with a hammer. One sucker will not come off till i realized i had to change from P to N neutral. Also, another tip is that if your sensor comes off in a complete piece u dont need to replace it. I did not have to since mine sensor came off really easy and unbroken. This saved me from removing the back panel. Last but not least, make sure you use sand paper to remove all the grim from bracket and greese the edgesthat holds the pads along with pin sliders. I also used CRC quiet. My brakes are like NEW again. Saved myself about $800.00 oh.. man this feels good. Hope this helps..Cheers!
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04-09-2013, 03:15 PM | #172 |
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Drives: 325xi>M235i>428GCx Mspor
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Here’s my experience on changing Pads & Rotors. Hope this could help others.
• Put car on 4 jack stands (see separate DIY on how to properly jack your car up on to stands). Make sure to loosen your wheel lugs before the car is up. • Open the brake reservoir cap (less pressure when sitting the pistons back). • (Optional) Suck out some brake fluid from the brake reservoir with a turkey blaster….will flush brake fluid after the brake job since the car is already on jack stands with wheels off (Separate DIY). • Take off wheel and first thing you want to do is spray some PB Blaster (lubricant) to the wheel hub where the rotor sits on and also spray some to the two bolts that holds the caliper bracket. This will make things easier later. • Loosen the 6mm hex from the rotor, but keep the bolt on so that the rotor stays in place. I slide a hex key into the edge of the rotor where heat vents and against the caliper so that the rotor will not move when you’re trying to loosen the 6mm hex bolt (This will prevent the rotor from turning when you’re trying to turn the hex bolt). • Take off the clip from the caliper. • Take off sliding pin plastic covers and use 7mm hex socket to remove the caliper pins. An extension bar might be needed in some tight areas behind the rotor. • Slide the caliper off, I had to use a screwdriver to pry the pads against both sides of the rotor (Warning! If you’re not replacing your rotors, be careful not to damage your rotors). Do not pry on the piston boot. • Ones the caliper is off, I highly recommend hanging the caliper with ropes/hooks etc. You don’t want to put stress on the brake lines and this will also allow you to have more space to work on the brackets. You want to hang it as high as you can and away from the bracket without stressing the brake lines. • The caliper brackets = the fun part: Do not use the Metric size; instead use the SAE size for a better snug on these bolts. I believe 18mm for the front and 16mm for the rear so find the SAE equivalent for those sizes. You will only have enough room to remove these bolts from the caliper side. This is why you want to hang the caliper to give yourself plenty of space. Be careful not to strip the bolts (use more PB Blaster on the bolts if needed). • Remove the 6mm hex from the rotor, then remove the rotor from the hub…hammer the surface of the rotor and be careful not to hit the hub (use more PB Blaster if needed). • Remove the old pads from the caliper and sit the piston back (I used a C clamp). Remember that the reservoir cap was left open; you shouldn’t have to use too much force when sitting the piston back. • Now just clean the necessary parts/areas (use brake cleaners and sandpapers). • Same process for other 3 wheels/brakes. Also replace the 2 brake sensors and install everything back (see below for more details) • Remember to close the brake reservoir cap when you’re done. Other notes: • Putting back on the bracket bolts; be very careful when you torque these bolts. The front bolts are twice as big as the rears. I made the mistake of over torque one of the rear bolts and it broke. You want to properly torque them to the steering knuckle but don’t over torque. A short torque wrench is ideal for the rear (no more than a foot long). Here are the specs: Front bolt = 110nm/81ft lbs Rear bolt = 65nm/48ft lbs • Anti-seize the bracket area where the pads sit on (the area where the edge of the pads sit/move on). • Anti-seize the hub area. • Use brake grease (not anti-seize) on the sliding pins. • Use brake quiet behind the pads. • Don’t forget to put the plastic dust covers back on for the sliding pins. • There will be a lot of brake dust that you’ll be breathing in, use a mask unless you want your lungs to look like your wheels lol. • If this is your first attempt, give yourself plenty of time to do this job. Don’t expect to finish in 3-4 hours; it could take 6+ hours…Good Luck!
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04-24-2013, 05:30 PM | #173 |
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Awesome info DIY
Can you tell me where I can purchase brake parts for a 2007 335i coupe rotors and pads what would you suggest/ brand and material for all 4, something definitely with minimal dust, and good stopping ability like oem and what is a good price range. Thanks:
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11-16-2013, 02:46 PM | #175 |
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I just changed my brakes and i tried reseting the brake indicator and it won't reset. I'm thinking because I accidentally broke part of the plastic cover of the front brake sensor. I just broke the plastic. thats it. I can't reset neither the rear brake sensor only and the rear sensor its fine.
I did not replace the rotors, just the pads. The rotors still have enough thread. Any advice?? |
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11-16-2013, 10:07 PM | #176 | |
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