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#1
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Front End Shudder - Part II
For less than the price the dealership quoted to replace just the control arms($750), I can likely replace everything in the front suspension. |
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#2
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sway end links may be a culprit... brake rotor deposits may be another...
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#3
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Could be warped discs.
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#4
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Quote:
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2008 ML320 CDI | Iridium Silver | Black ARTICO Leather | Premium Package (H/K Logic7, Parktronic, Rear Heated Seats, Rear Power Hatch, DVD Nav, 10-way Front Seats w/ Memory) | Backup Camera | Aluminum Running Boards | 4500K MTEC Low-beam HID | 30% Metallic Tint | Boomerang2 Recovery System | Weathertech Front Floorliners | Bridgestone Blizzak DM-V1 Winter Tires |
#5
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Diogenes...I have followed your "Shudder post" threads with close curiosity as I have been fighting the exact same situ for nearly the life of my '01 3.0. I'll save the litany of "fixes"/diagnoses; none have fooking worked. I had new front rotors and pads done by the Stlr 3 months and 4K miles ago, among other things, and it "seemed" ok for the first few times I hammered the brakes, but it quickly returned to the usual affliction...my point is I really doubt it is a "warpped disc" or "deposit" thing. I have no freaking idea what it is, but new rotors did nada for me. I am very curious to see how this thread goes...there have been a handlful of near identical wonderments over the past few years and I have never read of a real fix. I am beginning to think it is an unfixable or at least, an undiagnosible anomaly on some of our Xs.
GL,md
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Ol'UncleMotor From the Home Base of Pro Bono Punditry and 50 Cent Opins... Our Mtn Scenes, Car Pics, and Road Trip Pics on Flickr: http://www.flickr.com/photos/4527537...7627297418250/ http://www.flickr.com/photos/4527537...7627332480833/ http://www.flickr.com/photos/45275375@N00/ My X Page |
#6
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hey md... what tires you got? are they still in balance? are they in good shape? no cupping?
since you got pretty much all the hardware swapped out (brakes, control arms, etc), thats the last place i would look.. tires... |
#7
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Thinkin' out of the box here...either of you guys (md or diogenes) had steering issues? Any steering components replaced?
JV
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JV What gets us into trouble is not what we don't know...it's what we know for sure that just ain't so |
#8
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Hayku: orig Michey 18s, now with 50K...but, the shudder has been there since about Day 3. Tires are in very good shape, sidewall to sidewall, decent tread left, carefully rebalanced on a Hunter fancyazz machine, (the guy said wheel and tire were in v.good bal. originally as he "slightly" altered balance weights), etc., etc. It is a fooking mystery to me, but I do see this condition/phenomenom come up the Juke Box on occasion.
JV: No other steering issues. It is just a hard brake on @ high speed deal, and for me, an occas. noticeable wheel shimmy at less than high speeds. I have learned to live with it, though it remains disconcerting when me or V have to hammer the brakes on a high speed come down. It shudders and shakes, then...though repeating that action soon afterwards does not show the same condition. Ah, BeamERs, lol! BR,md
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Ol'UncleMotor From the Home Base of Pro Bono Punditry and 50 Cent Opins... Our Mtn Scenes, Car Pics, and Road Trip Pics on Flickr: http://www.flickr.com/photos/4527537...7627297418250/ http://www.flickr.com/photos/4527537...7627332480833/ http://www.flickr.com/photos/45275375@N00/ My X Page |
#9
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hmmm.. i'm sure you had the pads changed at least once. was the wear on them even or was it at an angle?
if at an angle, i think you have excessive flex in your guide bolt bushings... that is, the rubber bushing that the 7mm bolts hold the caliper to the carrier are flexing to much... giving you a vibration under braking and uneven pad wear cuz they aren't stiff enough to hold the caliper flat/still. |
#10
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Quote:
JV
__________________
JV What gets us into trouble is not what we don't know...it's what we know for sure that just ain't so |
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