1. it's "brakes" not how you spelled it.
2. "Warped rotor" is usually a misdiagnosis, and anyways a warped rotor would reveal itself the first time you used the brakes. Since you don't report this, a warped rotor is not your issue. READ THIS, written by the pros: http://www.stoptech.com/technical-su...nd-other-myths
3. BMWs used to be notorious for the front brake flex lines swelling internally and not allowing brake fluid to return to the master cylinder. This causes the caliper to stay closed and pads in contact with the rotor, overheating the pads and in turn affecting their coefficient of friction. Diagnose this next time after it happens by putting your hand at first near, then on the front wheel hubs. If on is hot (I suspect the right side from your description of brakes pulling that way) you have a sticking caliper and need new flexible brake hose lines. In my cars they have required 14 mm open end wrench and and an 11 mm flare nut wrench to remove/replace, YMMV. You can use the stainless braided hoses if that's your thing. You'll need to bleed the brakes afterwards.
4. The brake light monitors the level of fluid in the master cylinder reservoir and the position of the parking brake. Check the fluid level and that the parking brake is fully disengaged. Sometimes the sensing switch on the parking brake mechanism can be bumped out of position, check for that too. The last thing the dashboard light checks is the thickness of the brake pads, so make sure you have adequate thickness remaining. Brake pads come with a slot in them, and if you can't see the slot, it's time for new pads. At the mileage your car has, I'd also check rotor thickness and compare to minimum thickness spec.
5. I herewith invoke Mechanic's Rule: When something is screwed up, look into the last thing you messed with. You see, far too often we create our own problems through misdiagnosis, ignorance or clumsiness. Most of what I've learned has been discovered by having to do things twice. We are our own worst enemy, more times than most of us, including me, will admit. Thus, if you've messed with the brakes, it's entirely possible that what you did, however well-intentioned, contributed to the problem rather than the solution. AMHIK!
Last edited by Honolulu; 06-11-2018 at 04:03 AM.
Charlie
Your mission, should you decide to accept it, is to add value to these threads, either by pictures or by descriptions, so the next person with the same or similar problem stands on your shoulders.
Bookmarks