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newbtune newbtune is offline
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Angry Rear Brakes shake when I let go of gas - 08-12-2015, 08:45 PM

Ok ok. It may be an oversight, I did not see anything here yet for this particular issue or else I wouldn’t be asking. It is importation to note that I could just be tripping; I tend to listen and inspect my cars intensely after I work on them.

Car (08 335i sport package)

(Parts used: Akebono Ceramic Pads F/R, Zimmerman Z-Coated Rotors F/R, After Market Sensors F/R, and CRC Brake Quite F/R)

So I changed the front pads and rotors as well as sensors, that was a PITA more then I expected because the rotors were baked on and the brake kit was bigger then other e90's I have seen through research, should have figured the N54 would need more stopping power. So then I moved onto the rears. Wheel off, parking brake off, clip off, caliper guide pins out, caliper compressed, caliper removed and stored, caliper frame thingy with two 16 mm bolts removed, rotor retaining screw removed. Now the hard part removing the caked on rotor. After an hour of whacking it with a rubber mallet (on hat only) and dousing it in PB blaster it came off. Replaced all components and put wheel back on. Pumped brakes, test-drive, brakes making grinding noise normal for Zimmerman rotors getting coating off. But the most interesting part is when I accelerate no issues, but when I let go of the gas the back wheels vibrate and shake sounds like two flat tires, also makes squeaking noise, don’t know if the coating from the rotors is building inside the pads or if its something else. Does anyone have an idea of what this could be did I F*** this up???
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335xiboost 335xiboost is offline
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Default 08-14-2015, 11:35 AM

Not trying to be an A$$ but did you tighten the wheels properly? Do you have stock wheels? Asking that because after markets could have hub rings if you knocked those off when pulling the rotors the car would vibrate. I had a set of front rotors that were warped from the manufacturer.


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vwetish vwetish is offline
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Default 03-24-2016, 07:57 AM

sticking piston in the calipers or sticking caliper slider pin.
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Mrjrock85 Mrjrock85 is offline
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Default 03-03-2017, 08:38 PM

Def retorque wheels. Also check parking brake shoes
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Nanometer Nanometer is offline
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Default 03-06-2017, 01:54 PM

Can't believe nobody has mentioned control arms and bushings! check those!


E90 335i 2009 ///M Sport Auto
Mods: | Wagner Intercooler | MeowPipe | Meth-Trunk
Drivetrain--------ForgeStar F14 Wheels 18" (245 & 275 PSS) | Alpina Transmission Flash | Wavetrac LSD
Suspension-------KW V3 Coil Overs| M3 RSF Bushings and Dif Bushings | H&R Sways
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Mrjrock85 Mrjrock85 is offline
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Default 03-06-2017, 02:12 PM

Quote:
Originally Posted by Nanometer
Can't believe nobody has mentioned control arms and bushings! check those!
Why would he check control arms and bushings when he just stated the problem occurred after changing the brakes. He didn't touch the suspension. Neither of those would cause the brakes to shake upon application believe it or not
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