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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 02-05-2011, 02:54 PM   #1
infinite012
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Join Date: Jul 2004
Location: Richmond, VA
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My Ride: White '08 STI
High speed issue

I was driving up to NoVA from Richmond today and noticed that at 65+ MPH, if I applied the brakes (lightly, hard, everything inbetween), the car would veer violently to the left. At speeds of around 45-65 MPH, the car will try to wiggle itself to the right/left if I use the brakes.

Any suggestions on what needs to be fixed? This is pretty scary.
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Old 02-05-2011, 05:34 PM   #2
White_Knuckles
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Okay, the words "violently to the left" are scaring me. Get that car off the road immediately. You may have a catastrophic brake failure that could become a real scare. Posters may suggest all kinds of good ideas but these should not be road tested at speed. You may have fluid loss, air in the line, master cylinder failure, caliper failure, a pressure regulator issue and so on. Braking is critical as well servicing the system properly.

Tell us your intent of the post. Are you exploring what a shop may charge? Are you considering this something you'll be troubleshooting and performing the repairs? Whats your skill level and tool collection like? This isn't a fun movie for most.
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Old 02-05-2011, 06:33 PM   #3
codyfunk
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+1
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Old 02-05-2011, 07:10 PM   #4
infinite012
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I need to know what is wrong with the car so when I take it to the shop, they won't have to put themselves in danger by road testing the car.

Also, by "violently" I mean I was almost falling asleep at the wheel, but when I lightly pressed the brake pedal, my eyes opened up, my palms got sweaty and my heart started pumping through my chest. It was violent.
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Old 02-05-2011, 07:55 PM   #5
codyfunk
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Quote:
Originally Posted by infinite012 View Post

Also, by "violently" I mean I was almost falling asleep at the wheel, but when I lightly pressed the brake pedal, my eyes opened up, my palms got sweaty and my heart started pumping through my chest. It was violent.
Ok, you can leave the car on the road...but YOU need to get off of it! Quit falling asleep at the wheel you sound retarded trying to justify violently as, hey i was asleep but it jerked when i woke up and it scared me. Could be bushings on your control arm. check your rtabs and your fcabs
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Old 02-05-2011, 09:02 PM   #6
Kubica
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Get your brakes checked.

Otherwise, it sounds like an FCAB issue.

Check your brake fluid level before driving, and dont go over 45mph.
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Old 02-05-2011, 09:33 PM   #7
White_Knuckles
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The shop can diagnose all things without endangerment to themselves. They also must carry quite large liability coverage. Pros tend to not appreciate you troubleshooting problems for them but rather an accurate description of the symptoms. Take her in and explain what's up.

And remember our adage ... BMW - Bring More Wallets
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Old 02-05-2011, 10:27 PM   #8
infinite012
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Har har har. Yeah, it's been a long day. Just got back (safely) from NoVA down to Richmond and luckily there wasn't too much traffic, so I could stay off of the brakes.

Aaaannnnnnyyyyyywhoooooo... I'll be getting the car checked out when I have some more free time. I'm not going to take the car to the shop who installed my suspension because the mechanic there insists that my 120,000 mile FCABs and RTABs are perfectly fine. I also think he didn't perform an alignment after the install.
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