2008 BMW 335i Transmission Fluid Capacity: A Guide to Maintenance

2008 BMW 335i Transmission Fluid Capacity


When it comes to maintaining your 2008 BMW 335i, one crucial aspect that often gets overlooked is the transmission fluid. Regularly checking and changing the transmission fluid is essential for the smooth operation and longevity of your vehicle’s transmission system. In this article, we will discuss the transmission fluid capacity for the 2008 BMW 335i, providing you with the information you need to keep your car running at its best.

Transmission Fluid Capacity and Type

To ensure optimal performance, it is crucial to use the correct transmission fluid and adhere to the recommended capacity for your BMW 335i. Here is a table that outlines the transmission fluid capacity in both quarts and liters:

Transmission Fluid Capacity Quarts Liters
Manual Transmission (MT) 1.3 1.2
Automatic Transmission (AT) 9.5 9.0

Changing the Transmission Fluid

Now that you know the transmission fluid capacity for your 2008 BMW 335i, let’s discuss how to change the transmission fluid. Please note that this process may vary depending on whether you have a manual or automatic transmission. Always refer to your vehicle’s owner’s manual for specific instructions. Here are the general steps to follow:

  1. Ensure your vehicle is parked on a level surface and the engine is cool.
  2. Locate the transmission fluid drain plug or pan. Refer to your owner’s manual for its exact location.
  3. Place a drain pan underneath the drain plug or pan to catch the old transmission fluid.
  4. Remove the drain plug or pan and allow the old fluid to drain completely.
  5. Once the fluid has drained, reinstall the drain plug or pan securely.
  6. Locate the transmission fluid fill plug or dipstick. Again, consult your owner’s manual for its precise location.
  7. Using a funnel, add the recommended amount of transmission fluid according to the capacity table mentioned earlier.
  8. Replace the fill plug or dipstick and ensure it is tightly secured.
  9. Start your vehicle and let it idle for a few minutes to allow the new fluid to circulate.
  10. Check the transmission fluid level using the dipstick or fill plug. Add more fluid if necessary.


Maintaining the proper transmission fluid level in your 2008 BMW 335i is vital for the smooth operation of your vehicle’s transmission system. By following the recommended transmission fluid capacity and changing it at regular intervals, you can ensure that your BMW 335i continues to perform at its best. Remember to always consult your owner’s manual for specific instructions and safety precautions.

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