What did you do for your ZHP/ BMW / MINI today? #2

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Originally Posted by danewilson77

Warped rotors.

Sent from my Samsung Galaxy S4

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They're 3 weeks old...replaced the rotors and pads because of that reason. I can't figure out what else. Suspension-related??

What are the symptoms? hard braking, vibration only in brake pedal, only in steering wheel, pull to the left, or right?

could be pad deposits, could be a weird alignment issue, could be warped (new) rotors, i've seen guys get a little overzealous with the impact gun and over tighten lugs to the point that they warp rotors.

New windshield arrived for the 320, will probably have it installed next week as I don't have time to drop it off this week since I am taking the zhp to autoX this weekend and need it ready.

http://i29.photobucket.com/albums/c2...ps85f83e60.jpg

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http://i29.photobucket.com/albums/c2...psc0655dfc.jpg

http://i29.photobucket.com/albums/c2...ps7e76ca32.jpg

How does your Cowl cover look? May be a good time to replace it.

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Originally Posted by 3ZHPGUY

How does your Cowl cover look? May be a good time to replace it.

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I'm talking about the E21. E46 already has a new cowl

Good deal on that OE windshield Hermes. Where did you buy it from?

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Originally Posted by elsanto

What are the symptoms? hard braking, vibration only in brake pedal, only in steering wheel, pull to the left, or right?

could be pad deposits, could be a weird alignment issue, could be warped (new) rotors, i've seen guys get a little overzealous with the impact gun and over tighten lugs to the point that they warp rotors.

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Symptoms are pulsating and vibration in steering wheel and brake pedals, and "lurching" brake performance. As if it grabs more in one location than the other when I stop, so it "lurches" so to speak - kinda like... fast-slow-fast-slow-fast-slow really quickly. It doesn't pull to one side or the other. Braking performance is great. The symptoms are identical to before I replaced my rotors, but less pronounced than before.

I installed the rotors myself about 3 weeks ago to the books. Zimmermann and Textar combo. Torqued down wheels to spec.

If my wheels are straight, and if my rotors/pads are new, and I just got an alignment about 8 months ago, what else could it be suspension-wise? FCABs are fairly new.

Anyone else think it sounds like pad deposits?

Did you clean everything when you installed it with brake cleaner? most rotors ship with an oil on them these days to keep them from rusting, you have to clean that off prior to installation.

if not you may want to try a bedding in procedure to see if that helps (not familiar with your pads, may or may not be required)

Did you bed the pads upon install?

Post pictures of your rotors, it is fairly easy to see when you have pad deposits

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Originally Posted by JupiterBMW

Well, kind of a funny story, but this is what I did with my ZHP today...

So, as some of you know, I completed the TPMS retrofit (DIY coming tonight) and I wanted to test it out. So, about a mile from my local dealer, I let air out of my right rear tire, down to 20 pounds. I started driving and within about a half mile, the low tire pressure light popped up! Perfect I thought! I continued to my dealer and pulled up to the service lane so that I could have them top it up (I have the nitrogen package and get free service for a year). Well, how foolish did I feel when I found out that service was closed on Sunday! DOH! :facepalm So, off to the gas station to top it up. Of course, they don't hand out tokens anymore, now they charge $1 for air. Of course, now my tire has a mix of air and pure nitrogen, so I have to go BACK to the dealer to get the tire evacuated and filled with pure nitrogen...

The good news, my TPMS retrofit functions completely, and the reset button also works flawlessly. :)

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Took the car to the dealer today to get the tire evacuated and refilled with nitrogen. :thumbsup I found it kind of funny to see the tech giving my ZHP that lustful look-back as he parked it in the service lane for me and walked back to the shop. :rofl Everyone needs a little ZHP in their life. :roundel

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Originally Posted by elsanto

Anyone else think it sounds like pad deposits?

Did you clean everything when you installed it with brake cleaner? most rotors ship with an oil on them these days to keep them from rusting, you have to clean that off prior to installation.

if not you may want to try a bedding in procedure to see if that helps (not familiar with your pads, may or may not be required)

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They came with Coat Z and did not have the oil on them as a result. but I cleaned them off with brake cleaner to be sure.

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Originally Posted by M0nk3y

Did you bed the pads upon install?

Post pictures of your rotors, it is fairly easy to see when you have pad deposits

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I did not bed the pads this time because last time I did bed my pads, and assumed that was the cause of my vibrations. I don't have pics now but all four rotors are perfectly clean and making proper contact with the brake pads. No deposits that I can see.

There must be some underlying issue. My next thoughts have to be the wheel bearing and something with suspension.

Is it possible to have a bent or bad hub? Or could a bad wheel bearing cause wobble? My front wheel bearings don't make noise when driving, but they seem a little loose when spinning them.