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There are more than 1,000 Q&As and DIY guides posted here. Feel free to search by keyword (upper right), browse by category (lower right), or watch one of our helpful videos. Once you've found the answer to your question, you can get the parts you need in our online store – www.BavAuto.com.
VIBRATION UNDER BRAKING? IS IT WARPED ROTORS, WORN BEARINGS, FLANGE CORROSION, BALL-JOINTS?
A vibration under braking can often be due to warped brake rotors. However, there are a few other issues that can cause similar symptoms, to include; bake pad material transfer to the rotors, rust on rotor surfaces, rust or corrosion between the wheel mounting face and the rotor hub face, or the wheel drive flange and the rotor hub, weak control arm bushings and worn ball-joints.
Use the BAVauto Rotor Runout Gauge Tool BEFORE You Buy Replacement Parts!
This easy to use DIY runout gauge tool lets you quickly and easily check for run-out (warping) on brake rotors and wheel drive flanges (or check to see if rust or corrosion between the flange and the rotor hub (or hat) is causing a run-out/vibration problem), wear in wheel bearings and wear in ball joints. It features locking pliers that grip onto any convenient surface. The articulated gauge mounting arm allows the dial gauge to be placed against the brake disc, wheel hub or ball joint.
Click below for BAVauto DIY Rotor Runout Gauge Tool:
TIRED OF SCRAPING AND WIRE BRUSHING RUST, SALT AND CORROSION FROM WHEEL MOUNTING HUBS AND FLANGES?
Mounting a rotor to the wheel flange or a wheel to the rotor hub with rust or corrosion present can cause a misaligned wheel, resulting in shake, vibration and accelerated tire wear.
Assure a clean and flat wheel, rotor and mounting flange surface!
This Wheel Hub and Rotor Grinder/Cleaner is one of the newest additions to the BAVauto BMW and MINI specialty tools lineup. Simply attach the tool to a 3/8″ or 1/2″ impact driver or power drill with a 1/2″drive socket adapter and spin away all that rust, salt and corrosion.
Rust and corrosion on the mounting surfaces of the wheel and rotor hub can prevent proper parallel wheel mounting … causing wheel wobble and vibration. The same goes for the bearing or drive flange to the inner face of the rotor mounting hub (or hat).
Use the wheel and hub cleaner to quickly and completely clean the wheel mounting face of the brake rotor, the back of the rotor hub and the face of the wheel bearing or drive flange …. in addition to the back-side of the wheel mounting face.
REMOVE HARMFUL WEAR PARTICLES FROM ENGINES, TRANSMISSIONS AND DIFFERENTIALS
Here at BAVauto, we’ve been using and recommending the Dimple Super Magnetic Drain Plugs since our first evaluation and testing of them. As implied in the video, above, these are the highest quality and strongest magnetic drain plugs that we have ever used or tested.
Dimple Super Magnetic Drain Plugs are manufactured from either billet “Nickle Fusion” steel or modified original BMW or MINI drain plugs (depending on application), and use the strongest rare-earth neodymium (say, nee-oh-dim-ee-am) magnets. While some original BMW and MINI applications use magnetic drain plugs (such as; some transmissions and differentials), the neodymium magnets used in the Dimple plugs are far stronger than the magnets used in original BMW or MINI magnetic drain plugs (if the particular application has an original magnetic plug). Additionally, the neodymium magnets are unaffected by the operating temperatures in automotive engines (up th 300 deg. F), transmissions and differentials. Normal drain plug magnets weaken substantially as they become hot (over 175 deg F).
With all of the above points in mind, you may say, “so what?” Well, as an engine or gearbox assembly operates, it creates wear. Wear is the “scrubbing off” of fine metallic particles. Even when using the highest quality synthetic lubricants, such as Liqui-Moly or Red Line, there will still be wear within the assembly. Once these wear particles have been generated, we do not want them circulating through the system (via the flow of the lubricating fluid), as this would create additional wear. This is why we have oil filters on our engines and automatic transmissions (note that most manual transmissions, differentials and transfer cases do not have filters).
OK, so why do we need a magnetic drain plug, if we have a filter?
Much of the metallic wear particles are small enough to pass through the filter media (if a filter is even used). The magnetic drain plug will trap and hold these wear particles until the next fluid change. When the magnetic drain plug is removed, the wear particles are cleaned from the magnet and forever removed from the engine or gearbox. The magnetic plug is reinstalled and the cycle starts over again. The higher magnetic strength of the neodymium magnets in the Dimple Super Magnetic Drain Plugs will pull the metallic wear particles through the lubricating fluid from a greater distance (the particles do not have to pass as close to the magnet) and hold them with a greater tenacity.
Dimple engine oil drain plug – 2007 MINI Cooper