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January 18, 2017 / Posted in  Cars

Here’s a walk thru of a BMW X3 automatic transmission service with fluid and filter change on a 2008 E83. The 2008 has a 6 speed GM 6L50 transmission that uses Dexron VI automatic transmission fluid. You’ll need 6-7 quarts of replacement fluid, the replacement filter, replacement pan gasket and a few other items I’ve listed below. I found it easiest to simply buy a 2008 BMW X3 transmission service kit which includes the replacement fluid, replacement filter, replacement pan gasket, hardware, O ring, and drain plug. I was paranoid about a fluid leak so I wanted to do everything right for this service. Some of the special tools I needed for this procedure were a torque wrench, and some sort of pump to get the fluid into the transmission...

January 11, 2017 / Posted in  Cars

If your BMW X3 low coolant light comes on, it’s normal to have to top off the tank once or twice a year. But if you top off your tank and the low coolant light comes on again within a few days or a week, then you probably have coolant leaking from the system somewhere. First, check the back of the oil fill cap and make sure you see only brown oil as expected. If it’s foamy or creamy texture, you might have a head gasket leak. Most likely you don’t have a head gasket leak and it’s a coolant hose or coolant expansion tank leak. In the video below I explain how to diagnose a BMW X3 coolant expansion tank leak and how to replace the tank.

As you can see in my video, I had a small leak that didn’t even puddle water in the garage, at first...