Skip the auto shop - Our mechanics make house calls

Q: Automatic transmission jerking

asked by on

The automatic transmission in my car is jerking when I shift into third gear.

Hello. A common cause of transmission hard shifting is dirty transmission fluid. I suggest checking the transmission fluid. However, it is quite likely that the cause of the transmission malfunction is that the transmission module needs reprogramming. There is an update available for the transmission module of your vehicle which pertains to harsh vehicle shifting. I suggest calling the BMW service department, give them the VIN number and they will tell you if the reprogramming have been done.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Q: Transmission slipping

Hello...if it is a shift solenoid, that electronically controlled valve is in the transmission "valve body". Often, the part can be replaced without removing the transmission. However, the valve body might have to be removed. This is a fairly typical...

Q: Clutch doesn't come back up, 2001 Toyota Celica

Hey there, thanks for writing in about your 2001 Toyota Celica. There are a few things that may cause this situation. If the transmission starts to slip, there may be a problem in the hydraulic part of the system like...

Q: Van jerked with a clunking sound, transmission fluid leaked

The transmission may have blown out the front pump seal where the torque converter goes into the transmission. This can be due to the transmission front pump bushing is bad or another problem. You have both axle seals that may...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...