Skip to content

Welcome to our BMW and MINI tech blog!
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.

BAVauto® and FAG Bearings for BMW and MINI … 42 Years and Running

Aug 25 16

Friedrich Fischer invented the steel ball bearing grinding machine in 1883.  This development jump started the growth of the rotational bearing assembly, in reduction of friction in rotating assemblies.  Friedrich’s company, Fischer AG, has become today’s FAG; the symbol of high quality precision bearings and assemblies.  FAG quality has been recognized by BMW and many other manufacturers by becoming the original equipment supplier for wheel bearings and many other vehicle bearing needs.

BAVauto® has been using and offering FAG bearings since their start in 1974, servicing and repairing BMWs and now supplying high quality replacement parts to BMW and MINI enthusiasts worldwide.  BMW and MINI owners can feel confident and assured of the highest quality when ordering FAG replacement bearing assemblies from BAVauto®.

To see what’s available for your BMW or MINI, click the link below and enter your year and model, then search for the bearings that you need, for example; Wheel Bearings.

Click HERE for the BAVauto online store

FAG truly has been a leader in the bearing industry.  Check out just a few of the many milestones achieved by the company:

* 1883 – Fischer develops first high production high-precision ball bearing grinding machine.

* 1905 – FAG brand is registered in Berlin.

* 1911 – FAG bearings are the exclusive bearings used on Ray Harroun’s Marmon Wasp, winning the inaugural Indy 500 race.   ** Side note – BAVauto’s Otto is related to Ray Harroun!

* 1946-48 – Rebuilding after WWII.  We have all heard about the German bearing factories being strategic war targets … this was FAG.

* 1948 – 1990 – Many mergers and acquisitions, bearing design development, recovery from WWII and further market growth.

* 1990 – FAG enters the North-American market by acquiring Connecticut based precision bearing company, Barden Corporation.

* 1994 – FAG supplies precision bearings for the high pressure turbo pumps on NASA’s Space Shuttle program.

* 2003 – FAG, INA and LUK join as the Schaeffler Group.

* 2004-on – Further company innovations, growth and industry leadership assures the quality of the FAG brand.

BAVauto®
BAVauto.com
www.BAVauto.com
Bavarian Autosport

Quickly Test Your BMW or MINI Coolant and Brake Fluid, ACUTEST 2 Test Strips

Aug 18 16

Knowing the actual condition of your BMW’s or MINI’s engine coolant and brake fluid is a vital part of keeping these systems in great condition, which goes a long way in helping to prevent system failures that may put you on the side of the road … or, worse, over the side of the road.

ENGINE COOLANT:

Coolant – Typically a mixture of water and antifreeze, it performs many tasks:

•    As its first priority, the coolant absorbs heat from the engine, then releases the heat to the  radiator.
•    The antifreeze in the coolant mixture has anti-corrosive chemicals to help prevent corrosion in the radiator and engine.
•    The antifreeze also contains lubricative chemicals to help prolong the life of the water pump.
•    The antifreeze prevents the coolant from freezing in cold weather by lowering the freezing point of the water/antifreeze mixture.
•    The antifreeze helps prevent the coolant mixture from boiling as the engine temperature goes up by raising the boiling point of the water/antifreeze mixture.

As the coolant mixture ages, the anti-corrosive properties diminish and the engine and cooling system are susceptible to internal corrosion.  The corrosion can weaken or destroy the parts as well as create blockages to the coolant flow ….. reducing cooling capacity and increasing the propensity for overheating.  Additionally, the anti-freeze capabilities can be reduced due to cooling system servicing, leakage, etc., with improper refills.  This can result in a damaged engine as the coolant freezes and expands, cracking the engine block or cylinder head.

At BavAuto® we recommend replacement of the coolant mixture every two years.  We recommend testing the coolant at least annually, especially coming up to the winter months, for its anti-freeze properties.  Additionally, the coolant mixture should be tested for summer usage to assure the optimum anti-boil and heat transfer properties.  In other words, a 50/50 mixture (50% antifreeze / 50% distilled water).  The ACUTEST2 kit will allow you to easily  keep tabs on your coolant condition.

Click HERE for BMW and MINI how to flush engine coolant DIY video

BRAKE FLUID:

Knowing the condition of your brake fluid is critical in assuring that the fluid is in top functional condition as well as preventing corrosion of internal brake system parts.  The hydraulic braking systems on our BMWs and MINIs use the brake fluid to transfer the energy and movement of the brake pedal to the clamping of the brake pads against the rotating brake rotors, stopping the vehicle.  As brake fluid ages, it absorbs moisture.  This moisture is basically water.  What is water comprised of?  Hydrogen and Oxygen.  Your BMW’s or MINI’s brakes use friction to convert the moving energy of the vehicle into heat … to stop the vehicle.  This heat goes directly into the brake calipers at each wheel …. and into the brake fluid contained in the calipers.  If the brake fluid contains moisture, the moisture (water) can boil and release the Oxygen into the brake fluid.  This Oxygen (think of it as air) is compressible.  This mixture of brake fluid and compressible air reduces the efficiency of the brakes.  Pressing on the brake pedal produces excessive pedal travel and reduced hydraulic pressure to apply the brakes at the wheels.  In worst cases, the brakes can be fully ineffective during an emergency stopping situation.  At best, you could rear-end the vehicle in front of you due to an unexpected reduction in braking.

BavAuto® recommends annual flushing and replacement of the vehicle’s brake fluid.  This assures optimum brake system operation, even when excessively hot, as well as longest braking system component life cycles.  In addition to this, periodic testing of the moisture content of the fluid will show if the fluid needs to be flushed at an alternate interval.  The ACUTEST2 test strips make testing the brake fluid a quick and easy periodic maintenance task.

Click HERE for BMW and MINI how-to flush brake fluid DIY video

Click image below for ACUTEST2 test strip kits:

 

BavAuto®
BavAuto.com
www.BavAuto.com
Bavarian Autosport

Tired of Replacing BMW Oil Filter Housing Gaskets? New Viton Gasket Solves the Problem, OFHG

Aug 17 16


A common oil leak on late model BMW 6-cylinder engines is the small gasket between the oil filter housing and the engine block, known as the oil filter housing gasket (or, OFHG).  The oil filter housing is the large aluminum casting that houses the oil filter and also mounts the alternator and the power steering pump.  This issue apples to the M50, M52, M52TU, M54, M56, S50, S52 and S54 6-cylinder engines from the early ’90s through the late ’00s.  With this noted, the most common models for leakage are the M52TU and M54 versions.   On these engines, it’s not a question of IF the gasket will leak, but WHEN.  The cure is to remove the housing and replace the gasket.  And, once the work has been done to replace the gasket, it’s not uncommon for it to begin leaking again.  Of course, this can be rather frustrating.  While the gasket is only a few dollars, the labor to replace it is not inconsequential.

Knowing the problems with the standard replacement gaskets, BavAuto has worked with our suppliers to develop a new long-life oil filter housing gasket that is made from Dupont’s high-tech Viton material.  Viton is far more resistant to the heat and chemicals associated with the oil filter housing gasket.  Installing the BavAuto Viton gasket means this will be the LAST time you perform this task.

Click HERE for general Oil Filter Housing Gasket replacement DIY

Click HERE for Bentley Publishers Oil Filter Housing Gasket DIY on E46 3-series M54 engine

The applicable Bentley Publishers repair manual will detail the gasket replacement for specific BMW models.
Click the image below for Bentley repair manuals:

Click below for Viton Oil Filter Housing Gasket:

BavAuto®
BavAuto.com
www.BavAuto.com
Bavarian Autosport