How to Add Transmission Fluid to a 2007 Mustang

by Robert Good

The 2007 Ford Mustang 4.0-liter V6 coupe has a 5R55S transmission, which does not have a transmission fluid dipstick to check the transmission fluid or a dipstick tube to add fluid to the transmission. On a 2007 Ford Mustang, you need to take the car to the dealership on the scheduled maintenance date and have a certified Ford specialist perform the transmission maintenance for you. This is not a simple job to complete and you will void the warranty on the Mustang if you try to do it yourself.

Step 1

Listen for the transmission of the 2007 Ford Mustang to change gears slowly or skip and slip while you are driving the Mustang. Take a note on what gear the transmission slips; the dealership mechanic will want to know.

Step 2

Locate the closest Ford dealership to your location by logging onto On this website, schedule the transmission maintenance date that will best fit your schedule.

Step 3

Drive or tow your 2007 Ford Mustang to the dealership and allow a certified Ford mechanic to complete this process for you.

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