How To Change Your BMW Automatic Transmission Fluid (320i, 325i, 328i, 330i, 335i, 530i, 630i, X3, Z4)

Over time, countless thousands of ignition cycles cause your spark plugs to wear out and your ignition coil boots to degrade. This wear can be the cause of misfires and poor ignition. Spark plugs and ignition coils are often overlooked yet they're easily replaceable. With our ignition service...

If you haven't serviced your BMW's automatic transmission, you are driving around in a ticking time bomb. BMW advertises lifetime automatic transmission fluid - supposedly never requiring changing. Just like your engine, your transmission relies on its oil fill for cooling and lubrication. If you...

If you mysteriously find brake fluid in the front trunk or around the pedals of your Porsche 911, it may be time to replace your brake master cylinder.   As a Porsche 911 grows older, the brake master cylinder may begin to leak. This can lead to paint damage and eventually brake system failure....

  Are you getting a humming or grinding noise coming from one of your front wheels while turning or cruising down the highway? If so, there is a good chance that you need a new wheel bearing or two. If you are capable and confident enough to do your own brake job, replacing the wheel bearing on...

If your Mercedes has suffered a rear axle CV boot failure and you catch the problem quick enough, you can save the axle without being forced to buy a new one. This DIY is a messy one, but it's rewarding once completed.  CV boot and CV joint repair used to be a common practice, but now that...

I bought a 2004 Mercedes-Benz SL55 on the used car market, and after just one week of ownership, the engine seized. I was on the side of the road. Here's how it happened.  In this story: Why my new-to-me Mercedes engine seized What NOT to do when your car dies The crazy $$$ the dealership...

All Porsche 911s have excellent brakes from the factory, however, that performance degrades with age, especially if not cared for properly. Even the newest model air-cooled Porsche 911 is at least 20 years old at this point. Especially with rubber lines, it's a good idea to replace them to ensure...

The brake vacuum pump on the MK5 GTI (or any car with the TSI motor) is prone to failure. The main point of failure is a leaking gasket which causes a vacuum leak and directly affects braking performance. Luckily, replacement of the pump or just the seal is a straightforward process that anyone...

Your PCV system is an extremely important, yet often overlooked collection of parts that affects how well your car runs. On some cars, like our  2007 MK5 Volkswagen GTI, the PCV system is actually built into the plastic valve cover. Charles "HumbleMechanic" Sanville breaks down how the PCV system...