
Your X5 transmission has an extra Transfer Case used for the AWD (front wheel) These shops below do not warranty or fix the Transfer Case.ĭespite the claims of 3 year/100,000 miles warranty advertised on their website. There are half a dozen Big Transmission Re-manufactured shops scattered throughout USA. There is a Ginormous difference between Re-manufactured vs Rebuild transmission. It's Common Sense that metal friction moving parts and high heat needs lubrication just like engine oil. The Transmission fluids must be changed every 60k and can be done at some, but not all Jiffy Lube station. They want your car to break so that they can charge you $7,000 for a Re-manufactured or Rebuild transmission or buy a new car. They tell you the fluids never needs changing.



They tell you that your Transmission is Lifetime and does not need maintenance. Unfortunately BMW should have used a Mercedes Benz 722.X Transmissions which is far more reliable. Your inline 6 engine is designed to last 300k miles but your transmission is designed for 80 to 130k. The 5L40E is a very common transmission found in many cars.
