Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Test Conditions
- The transmission must not be in the emergency running
- Move the vehicle onto a 4-column shop hoist or over a work pit so it is completely level.
- Transmission is in "P".
- The parking brake button should be activated to close the electro-mechanical parking brake.
- Exhaust hose/hoses of an exhaust extraction system connected.
- The Air Conditioning (A/C) and the heater are off.
- Vehicle Diagnostic Tester is connected.
- The ATF temperature must not be higher than 30 °C (86 °F) at the beginning of the test. Let the transmission must cool down first, if necessary.
Read the ATF temperature on the Vehicle Diagnostic Tester.
The ATF level will vary depending on the temperature of the ATF.
It is possible to overfill the ATF if the level is checked when the temperature is too low.
It is possible to underfill the ATF if the level is checked when the temperature is too high.
Overfilling or underfilling will influence the function of the transmission.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.