Skip the auto shop - Our mechanics make house calls

Q: Changing automatic transmission fluid

asked by on

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?

A: Hello. There's an update available for ...

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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・Save up to 30%

Get a quote

What others are asking

Q: Tension strut replacement

Hello there, one of the commonly replaced parts on the 2009 BMW 535i is the hydraulic fluid filled bushings. These suspension components wear over time from absorbing the road shock. When the fluid filled bushings leak, it is important to...

Q: Car makes rattling noise when accelerating

Hi there. Diagnosing a noise is one of the hardest things for a mechanic to do; especially since there are so many potential issues. In many cases, the sounds you're describing are caused by loose heat shields, engine covers or...

Q: Gears grinding at low RPMs.

I am going to go ahead and move forward with the assumption that your Honda Civic is equipped with a manual transmission. I have owned Honda’s most my life and I have encountered this problem with the sound of transmission...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.