Dog Clutches
WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.
Two dog clutches are used on the transmission; dog clutch 'A' connects the input shaft to sun gear S2 and ring gear R1, and dog clutch 'F' connects sun gears S3 and S4 to the centering plate mounted in the transmission casing.
Both dog clutches are similar in their operation. Each clutch is operated by ATF pressure acting on a double acting piston to move the dog clutch into and out of engagement.