Q: Changing automatic transmission fluid

asked by on July 29, 2016

My car has gone 120,00 miles. It takes the car up to 8 seconds to shift from park to first gear. This differs depending on the outside temperatures. It usually shifts quicker in the summer. However, I was wondering if I should add tranny fluid. I checked the engine comaprtment which indicated low ATF level. How do I do this properly? Are there any rules as to the type or the way it needs to be done?

Hello. There’s an update available for the transmission control module on your 2003 BMW 330xi that is related to erratic transmission shifting. Call your local BMW dealership to determine if the update has been done. Performing the update should resolve your shifting problems. If the transmission fluid is low and the transmission fluid is serviceable through the top, you’ll be able to add it through the dipstick tube. Put a funnel inside of the dipstick tube and add the proper transmission fluid.

Intermittently check the transmission level to ensure that you don’t overfill it. If the fluid became low, you may have a transmission fluid leak. It is best to have the transmission inspected by a technician to determine if it is leaking. If it is leaking, have the leak repaired to bring the fluid level back to its intended specifications.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Car turns off when im at complete stop but not when parked

Hello, thank you for writing in. Finding the cause of your issues is going to be a process of elimination. There are several components you are going to want to check and test if possible. First, have your vehicle scanned...

The check engine light is on and my car sounds loud when it I crank it up. What could be the cause?The exhaust got fix but still l

Hello, thank you for writing in. With the check engine light on, we need to start by scanning the vehicle for diagnostic codes to find out why that light is on. We can use the codes to help point us...

Car died and clear, greenish substance on top of engine

The only fluid I know that has a green tint is coolant. You may have leaked out all the coolant or the coolant shorted out the ignition system. Check the coolant level after the engine has cooled down. If it...

Related articles

How to Buy Good Quality Transfer Case Fluid
Do Do you drive an all-wheel drive, or four-wheel drive vehicle? If so, you can bet it most likely has transfer case fluid. The transfer case fluid is found within the transfer fluid case. This case can sometimes be called...
How Long Does a Transmission Speed Sensor Last?
The The transmission speed sensor measures the RPMs of the shaft of the transmission. While the engine is running, but not moving, then the input shaft of the transmission is not moving either. When the input shaft moves, the transmission...
Symptoms of a Bad or Failing Clutch Cable
If your manual car's transmission is slipping out of gear or clutch pedal is hard or sinking to the floor, you may have to replace the clutch cable.