Quote:
Originally Posted by bcredliner
O'reilly's may be able to tell you if it is warped but it is not recommended to turn BMW rotors. I have seen new rotors that were warped out of the box.
If it happens when the brakes are cold or have not been used for some time when driving that is a clue that it is brake related. If you can get it to happen then let off the brakes and then apply them again and it goes away and then won't happen the next time you brake from the shuddering speed that is more than a clue. Have you place the pads or rotors recently?
Have you checked the sway bar link on that side? Are bolts tight? Did you replace the links with the rest of the suspension?
If it has been doing this for some time and still only happens over 40mph I would be somewhat skeptical that it would be a wheel bearing or CV, especially with the rattle rather than a grinding or clunking noise. I would be checking other potential problems first.
|
The rotors have plenty of meat on them and should spec out ok if they're not warped too bad. It would be just my luck that I got warped rotors out of the box...Lol!
You are on track with the shuddering happening when cold and after I let off the initial attempt (above 40), then I don't feel it as bad when pressing the brakes and slowing to a stop or crawl. Braking under speeds of about 30 mph, the shudder isn't as noticable.
Pads and rotors were replaced last November with brembo's and semi-metalic's.
Sway bar links are over a year old but, I do have a new set of Meyle's (was for my daughters 03 X5 3.0) and will put those on tonight when checking the thrust bushes and skid plate bolts.
I hope to be toasting a "Moose Knuckle" ... I mean a "Moose Drool" beer in y'alls honor!
This has been plaguing me for sometime!
__________________
"I can’t understand it. I can’t even understand the people who can understand it"
Queen Juliana (1909-2004), of the Netherlands
"If you choose not to decide, you still have made a choice!"
2004 X5 4.8is Imola Red-228K ZF-GA6HP26Z-Sold
2006 X3 3.0i Mystic Blue-175K, ///M pkg 6-Spd Manual- Trading in 6/10/17 for a Mini too!
2003 Silver X5 3.0- sold
2000 VW Beetle 1.8 turbo-165K- Totaled 9/11/16